Vox AC100, AC50 User Manual

AC50CPH

AC100CPH

Owner’s Manual

Manuel d’utilisation

Bedienungsanleitung

Manual de Usuario

1SGFE

IMPORTANT SAFETY INSTRUCTIONS

• Read these instructions.

•Keep these instructions.

• Heed all warnings.

•Follow all instructions.

• Do not use this apparatus near water.

• Mains powered apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.

• Clean only with dry cloth.

• Do not block any v entilation openings. Install in accordance with the manufacturer's instructions.

• Do not install near any heat sources such as radiators, heat registers, stoves, or other appar atus (including amplifiers) that produce heat.

• Do not defeat the safety purpose of the polarized or groundingtype plug. A polarized plug has tw o b lades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. (for U.S.A. and Canada)

• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus .

• Only use attachments/accessories specified by the manufacturer.

• Unplug this apparatus during lightning storms or when unused for long periods of time.

•Turning off the power switch does not completely isolate this product from the power line so remove the plug from the socket if not using it for extended periods of time.

• Install this product near the wall socket and k eep the po w er plug easily accessible.

• WARNING—This apparatus shall be connected to a mains socket outlet with a protective earthing connection.

• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any wa y, such as power-supply cord or plug is damaged, liquid has been spilled or objects have f allen into the appar atus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

• Do not install this equipment on the far position from wall outlet and/or convenience receptacle.

• Do not install this equipment in a confined space such as a box for the conveyance or similar unit.

• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

CE mark for European Harmonized Standards

CE mark which is attached to our company’s products of A C mains operated apparatus until December 31, 1996 means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC). And, CE mark which is attached after January 1, 1997 means it conforms to EMC Directive (89/336/EEC), CE mark Directive (93/ 68/EEC) and Low Voltage Directive (73/23/EEC). Also, CE mark which is attached to our company’ s products of Battery operated apparatus means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC).

* Company names, product names, and names of f ormats etc. are the trademarks or registered trademarks of their respective owners.

AALWAYS use the supplied mains lead, if a replacement is

required please contact your authorized Vox Dealer.

B DO NOT switch the amplifier on without a loudspeaker

connected.

C ENSURE that any extension cabinets used are of the

correct impedance.

D NEVER attempt to bypass the fuses or fit ones of the

incorrect values.

E DO NOT attempt to remove the amplifier chassis, there

are no user serviceable parts.

F Refer all servicing to qualified service personnel including

replacement of fuses and valves. Servicing is required when the apparatus has been damaged in any way, such as when the power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped.

CAUTION: Any changes or modifications not expressly

approved by the party responsible for compliance may void the users authority to operate the equipment.

Note: It is recommended that all audio cables, with the

exception of the speaker lead, used to connect to the AC15 Custom Classic are of a high quality, screened type. These should not exceed 10 metres in length. Always use a non-screened Vox approved speaker lead with the AC15 Amplifier and extension cabinets.

WARNING: Do not obstruct ventilation grilles and always

ensure free movement of air around the amplifier!

AC50/AC100 Classic Plus

Owner’s manual

INTRODUCTION

Thank you for buying the VOX CLASSIC PLUS amplifier. As you probably already know (otherwise you probably wouldn’t have bought it!) these amplifiers are available in both 50 and 100 Watt variants. This manual covers the operation and other details of both. Although the Classic Plus range is totally brand new and up to date in design and features, you can be assured that there is 50 years of classic VOX sonic history packed into every amplifier.

The Classic Plus is a channel switching valve pre- and power-amp guitar amplifier that can produce many flavours of tone from pristine clean to impressive high-gains, and all points between. The two channels have a variety of wide-ranging controls to help you create the sound textures that you require, and as the controls of the two channels are totally independent, you do not need to compromise to achieve your desired tonal palette.

In addition to the aforementioned controls, the amplifier features Spring Reverb with individual level control for each channel with remote foot-switching, plus series FX looping with selectable level control and bypass switching. The extensive DI output facility has both balanced XLR and unbalanced jack outputs with rotary level control and ground lift switching. To enable great sounding connection into PA or recording equipment, the DI also features a speaker emulating Low Pass Filter (LPF) network. This can be switched into or out of circuit as required. Another great plus of the DI circuit is that it is post the power amplifier’s phase inverter valve, and before the Output Master Volume control. What this means is that no matter how loud or quiet your stage level is, you have totally independent control of the DI output level. You can even turn the Master Volume totally off and use the DI output for “silent” recording for those midnight sessions.

Even if you are an experienced amp tinkerer we really do suggest that you read this manual before turning the amp on. There may be something in these pages that you didn’t know. Even if there isn’t, hopefully we will have entertained you as you learn about your new CLASSIC PLUS.

After reading this manual, please plug in, turn on, and ROCK till you drop.

Thank you.

From All at VOX

FRONT PANEL CONTROLS AND FUNCTIONS

INPUT SECTION

1. INPUT JACK SOCKET

As the name suggests, this jack socket is used to connect your guitar into the amplifier. It is important to remember that the use of high quality cables is of paramount importance to obtain the best and most consistent performance. Although good cables can be relatively expensive, it is without doubt a very worthwhile investment. We recommend Vox cables. Please contact your dealer if you need assistance selecting a high-quality cable.

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2. CHANNEL SELECT SWITCH

The front panel toggle switch marked CHANNEL 1/CHANNEL 2 is used to select which channel is going to be selected for use: CHANNEL 1 is primarily the CLEAN/CRUNCH sounding channel & CHANNEL 2 is for much heavier and overdriven sounds. The rear mounted FOOTSWITCH jack socket is also available to connect the foot operated switching box (VOX VF002) to allow remote channel switching operation.

REMEMBER! To use the Footswitch function the F ront Panel, the toggle Switch MUST be set to the CHANNEL

2 position. The associated Channel LED (Green f or Ch1, Red for Ch2) will illuminate when each channel is selected.

CHANNEL 1 SECTION

3. GAIN CONTROL

This control regulates the amount of signal amplification that is generated in the Channel 1 preamplifier circuit, and as such sets the basic tonal qualities of the channel. The circuit design of Channel 1 is based on the Top Boost channel of the historic VOX AC30. Therefore the basic sound of this channel is classic VOX through and through. But by some subtle changes and tweaks this channel will also give you some serious classic rock Crunch. Although different types of guitars and pick-ups will give differing output levels and thus amp settings will vary between different guitars, then generally the rule of thumb is that cleaner sounds are going to be between Off (naturally!) and about 2 o’clock position of the knob. After that the channel preamp will slowly start to go into crunchy distortion, with the maximum distortion at Full (of course!). Although this channel is not seriously high gain (we’ve left that for channel 2) the distortion level can be seriously satisfying.

4. EQ and TONE contr ols

The TREBLE, MIDDLE, and BASS controls on this channel are of the interactive passive format that is historic to VOX amplifiers. This type of EQ is sometimes nicknamed as the “tone stack” by the nature that the three controls are drawn on a circuit diagram. Generally speaking, the position of each control knob will influence the effect of the other two. Our advice is to set the three controls at their midpoint positions and start from there. Experimentation is the key to finding your tone. For starters though, turning the Middle control down will make the sound more “hollow” particularly with high gain (distorted) settings, as typified on many modern heavy rock songs. Turning the Middle up will make the tone fuller, smoother and produce a more “singing” tone. Adjust Bass & Treble to suit. The TONE CUT control is a classic VOX control that dates back to the very first VOX amplifier of 50 years ago, when it was the only form of tone control on the amplifier. In keeping with its name, this control works by reducing (CUTS) the amount of high frequency content of the sound and thus smoothes out and warms up the treble. When using this control please remember that as you turn the control UP that you are actually turning DOWN the Treble.

5. REVERB

This control regulates the amount of the on-board spring reverberation required for Channel 1 only. Please remember that the reverb is controlled ON or OFF by the footswitch as well.

6. VOLUME

This control is set at the end of the Channel 1 preamp circuit, before it goes to the FX Loop, Reverb, and Power Amp sections. As such it governs how loud the sound generated by the Channel 1 electronics is going to be. Low settings of the control will mean the amp will be pretty quiet, and higher settings will mean total mayhem has broken out! As the total sound level is controlled by both the Gain and Volume controls (and the Output Master, but more on this later) you will need to balance both the level and character of the sound with both these controls.

CHANNEL 2 SECTION

7. GAIN CONTROL

This control regulates the amount of signal amplification that is generated in the Channel 2 preamplifier circuit. The circuit design of Channel 2 is out and out mean, meaty and mighty – but with a good measure of VOX thrown in as well! The basic sound of this channel takes off where Channel 1 finishes; and by use of all of this channel’s controls you can achieve a variety of sounds from gentle blues to classic rock to modern high gain wailing.

8. BRIGHT SWITCH

This switch brings in an extra capacitor (switch down) across the Gain control to boost the highmid and upper frequencies. The effect of this is dependant on the position of the Gain control – lower settings mean that the switch is more active – higher positions mean that it is less active. A good use of this switch is to give extra bite and clarity to muddy sounding humbucking pick-ups.

9. F AT SWITCH

This switch brings in some extra gain, and also focuses the mid range of the guitar and amp which helps produce the “singing” tone when playing lead lines.

10. EQ and T ONE controls

The TREBLE, MIDDLE, and BASS controls on this channel are of the interactive passive format but have different characteristics than the classic VOX TB circuit that Channel 1 is based on. The EQ is centered on different frequencies to enhance the higher gain capabilities of Channel 2.

Generally speaking the position of each control knob will influence the effect of the other two. Our advice is to set the three controls at their midpoint positions and start from there. Experimentation is the key to finding your tone. For starters turning the Middle control down will make the sound more “hollow” particularly with high gain (distorted) settings, as typified on many modern heavy rock songs. Turning the Middle up will make the tone fuller, smoother and produce a more “singing” tone. Adjust Bass & Treble to suit. The PRESENCE control is often found on other rock oriented guitar amps. It normally functions in the feedback circuit of the power amp to gently boost the presence frequency range (around 2 to 3kHz). This achieves the purpose of making the sound more lively and attacking, and originally was used to compensate for dead sounding rooms and auditoria. But of course, we at VOX like to do things a little differently than other amp companies: our Presence circuit combines the traditional active power amp feedback circuit with a passive circuit within Channel 2’s preamp that not only focuses the Presence boost but, by turning the control down, will introduce a high frequency cut filter that can be used to de-fuzz the preamp distortion, making it less aggressive and sweeter.

11. REVERB

This control regulates the amount of the on-board spring reverberation required for Channel 2 only. Please remember that the reverb is controlled ON or OFF by the footswitch as well!

12. VOLUME

This control is set at the end of the Channel 2 preamp circuit, before it goes to the FX Loop, Reverb, and Power Amp sections. As such it governs how loud the sound generated by the Channel 2 electronics will be. Obviously, low settings of the control will mean the amp will be pretty quiet, and higher settings will mean total mayhem has broken out! As the total sound level is controlled by both the Gain and Volume controls (and the Output Master, but more on this later) you will need to balance both the level and character of the sound with both these controls.

MASTER SECTION

13. OUTPUT MASTER VOLUME

This control is what is called a Post Phase Inverter Master Volume (PPIMV) and is so called because it operates in the power amplifier circuit between the output of the phase inverter valve and the input of the power output valves. A great deal of the sound of a valve guitar amplifier is actually generated by the phase inverter valve and therefore by using this type of design much of the true power amp characteristics are retained when you use this type of Master Volume. I.e. it keeps much of the true valve sound even at low levels of volume. In simple terms this control regulates the actual power output produced by the power amplifier, so at lower levels it is akin to playing through a low power valve amp. Another benefit of this type of circuit and control (as mentioned in the introduction) is that the DI circuit is connected between the phase inverter valve and the Output Master Volume. This not only gives the DI the tone of the power amp, but the DI and power output control are totally independent.

14. ST ANDBY SWITCH

The standby switch is used to a) turn the amplifier on or off for short durations such as breaks when you do not want to go through the required warm up period, and b) it is used to alleviate strain on the amp’s output valves when you are powering up from cold i.e. when warming up the amp. Historically the operation of the Standby switch is actually converse from its On & Off markings. Standby OFF means that the amp is switched INTO Standby and the amplifier is not operating, and Standby ON means the amp IS working. The Green LED indicator above the Standby switch will illuminate when the amplifier is ON.

15. POWER SWITCH

This switch turns the mains power coming into the amp on or off. When the amp is active the Red LED above the switch will be illuminated. The correct procedure for powering up your AC50/100CP amplifier (and indeed virtually every valve guitar amp made) is A) Check that the amplifier’s rating is suitable for the mains power that you are using (i.e. a 230V rated amp is going to be connected to 230V mains power, 120V to 120V etc, if in doubt please consult your VOX dealer), B) ensure that all cables (speaker, footswitch, FX loop, etc) are already connected, C) ensure MAINS and STANDBY switches are in the OFF position and then connect the mains power cord to the amplifier, D) turn ON the POWER switch and ensure that the RED LED is ON, E) wait for at least 2 minutes for the valves to warm up, and then F) turn ON the STANDBY switch. Your amplifier is now ready for use. Allowing the amplifier to warm up in this way will ensure that the valves are not subjected to too much stress and will help them to achieve maximum life.

REAR PANEL CONTROLS AND FUNCTIONS

16. LOUDSPEAKER OUTPUTS

Two parallel connected jack sockets for feeding 1 or 2 loudspeaker cabinets of your choice (We recommend VOX model V412BN 4x12” speaker cabinets). The Impedance Selector Switch allows you to connect either a 16 ohm or 8 ohm loudspeaker system to your amplifier. It is extremely important to the continued safe running of your amplifier that the speaker and amplifier impedances are closely matched – output valve and transformer damage can occur if this is not done! For 1 x 16 ohm cabinets set selector to 16 ohm. For 2 x 16 ohm cabinets set selector to 8 ohms. For 1 x 8 ohm cabinets set selector to 8 ohms. Any other combination CANNOT be used.

17. EFFECTS LOOP

The series effects loop is situated between the outputs of the preamp stages and the input of the Reverb stage. The signal is then fed into the power amp stage. The BYPASS slide switch will either engage the loop (switch ON) or disconnect the effects loop circuitry from the rest of the amplifier (switch OFF). We recommend that if you are not using the loop then the switch should be set to the OFF position. With the LOOP switch in the OFF position, the SEND jack socket is still operational and can therefore be used to send the signal to another device such as a tuner or slave amplifier. The LOOP LEVEL Switch allows the loop to be used at two different signal levels (approximately +4dBV (high) and -10dBV (low)). This will enable a wide range of devices to be connected to the amplifier. We do not recommend the use of stomp box devices in a loop, particularly Fuzz and Distortion pedals as these can limit the headroom of the amplifier and prevent you achieving full power output.

18. DIRECT OUT

The AC50/100CP amplifier has a very comprehensive DI circuit, as explained earlier in this manual. Please refer back to the note 13 (Output Master Volume control) which explains the relationship between the DI circuit and the amplifier. The DI is outputted on either Balanced XLR or Unbalanced Jack connection and both are controlled by the LEVEL rotary control. The GROUND LIFT Switch will either connect the external equipment to the AC50/100CP direct grounding or to a phantom ground circuit to prevent ground loops occurring, please try both positions for best performance. The LPF (Low Pass Filter) switch will change the DI response to either the normal amplifier frequency response for use when connecting to slave amplifiers and guitar type speaker systems, or, when switched on, will introduce a very sharp filter network that removes the high frequencies that are normally removed by guitar loudspeakers. This enables the amp to be directly connected to PA or recording equipment and speaker emulated sounds to be achieved. Please remember that by turning the Master Volume to 0 you can silent “record” from the DI output. It is HIGHLY RECOMMENDED that when doing so that the amplifier is still connected to the normal loudspeaker system so that if the Master is accidentally turned up then no damage can occur to your amplifier.

19. FOOTSWITCH JACK

This jack is for connecting the supplied VF002 double footswitch to the amplifier for remote channel (switch A) and reverb switching (switch B). If you require to use an alternative switching system (MIDI switcher for instance) then the following information will be of use: Both switches are short to ground - Channel switching = jack Tip – channel 1 is closed – channel 2 is open – Reverb = jack Ring – reverb off is closed – reverb on is open. Approximately 7.5Vdc @ 10mA is present on open switches.

20. OUTPUT VALVE BIAS CONNECTION COVER

This plate covers the 2 potentiometers and test measuring points for setting the operational bias of the output valves. This should be done by qualified personnel only!

21. HT FUSE

The HT fuse protects the high voltage secondary circuit that supplies the valve circuits, particularly the output valves. This fuse will typically blow in the case of an output valve failure, but can also blow in the event of any other secondary circuit failure.

WARNING! IF THE FUSE SHOULD FAIL REPLACE IT ONLY WITH THE CORRECT TYPE AND RATING

OF FUSE. Do not use any other value or serious damage could occur.

22. MAINS POWER INPUT and FUSE

The incoming mains power lead is connected to this inlet. Please use the supplied mains lead, or one of at least the same ratings (if in doubt check with your dealer). Before connecting the mains power please check that it is compatible with your amplifier, by checking that it matches the rating plate on the amplifier back panel. The fuse that is in the mains inlet is there to protect you, your amplifier, and the mains circuit that you are connected to. If the fuse blows it is usually for a good reason, especially if it blows again after you replace it.

WARNING! IF THE FUSE SHOULD FAIL REPLACE IT ONLY WITH THE CORRECT TYPE AND RATING

OF FUSE. Do not use any other value or serious damage could occur.

Please note! Your amplifier is designed to operate correctly on the A.C. Voltage and Frequency that is noted on the back panel mounted rating plate. If you wish to export/import this product to another country it may not be compatible and may require modification to suit. If in doubt please consult a VOX dealer or distributor.

SPECIFICATIONS

AC50CPH

50 Watt valve channel switching guitar amplifier head with spring reverb.

Power Output: 50 Watts RMS into selectable 8 or 16 ohm loudspeaker load. Valve complement: 4 x 12AX7/ECC83 (note! V1 is low microphonic) and 2 x EL34B. Country Variants and Mains Fuse:

AC50CPH – 100JP = 100V 50/60Hz ~ Fuse T3.15AL 250V AC50CPH – 120US = 120V 50/60Hz ~ Fuse T3.15AL 250V AC50CPH – 120EX = 120V 50/60Hz ~ Fuse T3.15AL 250V AC50CPH – 230GE = 230V 50/60Hz ~ Fuse T1.6AL 250V AC50CPH – 230UK = 230V 50/60Hz ~ Fuse T1.6AL 250V AC50CPH – 240AU = 240V 50/60Hz ~ Fuse T1.6AL 250V

Dimensions (W x H x D): 702 x 265 x 285 mm / 27.6 x 10.4 x 11.2 inches Weight: 22 kg / 48.5 lbs. Included items: Power cable, VF002 footswitch

AC100CPH

100 Watt valve channel switching guitar amplifier head with spring reverb.

Power Output: 100 Watts RMS into selectable 8 or 16 ohm loudspeaker load. Valve complement: 4 x 12AX7/ECC83 (note! V1 is low microphonic) and 4 x EL34B. Country Variants and Mains Fuse:

AC100CPH – 100JP = 100V 50/60Hz ~ Fuse T5AL 250V AC100CPH – 120US = 120V 50/60Hz ~ Fuse T5AL 250V AC100CPH – 120EX = 120V 50/60Hz ~ Fuse T5AL 250V AC100CPH – 230GE = 230V 50/60Hz ~ Fuse T2.5AL 250V AC100CPH – 230UK = 230V 50/60Hz ~ Fuse T2.5AL 250V AC100CPH – 240AU = 240V 50/60Hz ~ Fuse T2.5AL 250V

Dimensions (W x H x D): 702 x 265 x 285 mm / 27.6 x 10.4 x 11.2 inches Weight: 25 kg / 55.1 lbs. Included items: Power cable, VF002 footswitch

Appearance and specifications of this product are subject to change without notice.

URL = http://www.voxamps.co.uk5

INFORMATIONS IMPORTANTES DE SECURITE

• Lisez attentivement ces instructions.

•Veuillez conserver ces instructions.

• Observez tous les avertissements.

• Suivez toutes les consignes à la lettre.

• N’utilisez jamais cet appareil dans un endroit humide ni à proximité d’eau.

•L’appareil alimenté par courant électrique ne peut pas être exposé à des éclaboussures; évite en outre de placer des récipients contenant des liquides, comme un vase (ou un verre de bière), sur l’appareil.

• Nettoyez uniquement l’appareil avec un chiffon doux et sec.

• Ne bloquez jamais les orifices de ventilation de l’appareil et installez-le toujours conformément aux instructions du fabricant.

• N’installez jamais l’appareil à proximité d’une source de chaleur , telle que des radiateurs, poêles ou tout autre dispositif (y compris des amplificateurs) générant de la chaleur.

• N’essayez jamais de contourner le dispositif de sécurité d’une prise de type polarisée ou d’une prise de terre. Une prise dite polarisée dispose de deux broches, dont l’une est plus large que l’autre. Une prise de terre comporte trois broches, dont une de mise à la terre. Cette broche plus large ou broche de mise à la terre vise à assurer votre sécurité. Si la fiche du cordon d’alimentation ne correspond pas au type de prise de courant de votre région, faites remplacer la prise obsolète par un électricien qualifié (pour les Etats-Unis et le Canada).

• Placez toujours le cordon d’alimentation de sorte qu’on ne risque pas de marcher dessus ni de le pincer. Cette précaution vise tout spécialement la fiche du cordon et sa sortie de l’appareil.

• Utilisez exclusivement les fixations/accessoires préconisés par le fabricant.

• S’il y a risque d’orage ou que vous ne comptez pas utiliser l’appareil pendant une période prolongée, débranchez-le du secteur.

• La mise sur OFF de l’interrupteur d’alimentation n’isole pas totalement ce produit de la ligne secteur; aussi, retirez la fiche de la prise s’il doit rester inutilisé pendant une période prolongée.

• Installez ce produit près de la prise électrique murale et gardez un accès facile à la prise électrique et au cordon d’alimentation.

•ATTENTION: Cet appareil doit absolument être connecté à une prise électrique reliée à la terre.

• Confiez tout travail de réparation uniquement à un S.A.V. qualifié. Faites appel au S .A.V. si l’appareil a subi tout endommagement, comme par exemple si sa fiche secteur ou son cordon d’alimentation sont endommagés, si de l’eau ou des objets ont pénétré à l’intérieur de l’appareil, si celui-ci a été exposé à la pluie ou à la moisissure, s’il est tombé ou présente tout signe de dysfonctionnement.

• N’utilisez jamais d’allonge trop longue avec cet appareil et ne l’alimentez jamais via les prises secteur équipant d’autres dispositifs.

• N’installez jamais cet appareil dans un endroit confiné comme une caisse de transport ou tout autre récipient similaire.

• Utilisez l’appareil uniquement avec le chariot, stand, trépied, fixation ou table spécifiés par le fabricant ou fourni av ec l’appareil. Si v ous avez placé l’appareil sur un chariot, soyez très prudent quand vous déplacez le chariot, afin d’éviter une chute et des blessures.

Marque CE pour les normes européennes harmonisées

La marque CE apposée sur tous les produits de notre firme fonctionnant sur secteur jusqu’au 31 décembre 1996 signifie que ces appareils répondent à la Directive EMC (89/336/CEE) et à la Directive concernant la marque CE (93/68/CEE). La marque CE apposée après le 1 janvier 1997 signifie que ces appareils sont conformes à la Directive EMC (89/336/CEE), à la Directive concernant la marque CE (93/68/CEE) ainsi qu’à la Directive Basse Tension (73/23/CEE). La marque CE apposée sur tous les produits de notre firme fonctionnant sur piles signifie que ces appareils répondent à la Directive EMC (89/336/CEE) et à la Directive concernant la marque CE (93/68/CEE).

* Les noms de sociétés, noms de produits et noms de f ormats, etc.

dans ce manuel sont des marques de fabrique ou des mar-ques déposées de leurs propriétaires respectifs.

L’éclair dans le triangle est un symbole destiné à attirer l’attention de l’utilisateur sur la présence de parties non isolées et de “tension dangereuse” à l’intérieur de l’appareil, qui posent des risques d’électrocution pour l’utilisateur.

Le point d’exclamation dans un triangle est un symbole destiné à attirer l’attention de l’utilisateur sur des sections de ce manuel contenant des informations importantes, liées à l’utilisation et à l’entretien de ce produit.

AC50/AC100 Classic Plus

Manuel d’utilisation

INTRODUCTION

Merci d’avoir acheter l’ampli “VOX CLASSIC PLUS”. Comme vous le savez probablement déjà (sinon vous ne l’auriez pas acheter !) les amplis sont disponibles en deux versions : 50 et 100 Watts. Ce manuel explique les opérations et autres détails sur ces deux amplis. Bien que la gamme Classic plus soit totalement nouvelle et originale en matière de fonctions et de conception, vous pouvez être certains qu’il y a 50 ans d’histoire sonore VOX présente dans tous nos amplis.

Le Classic Plus est un canal qui commute les lampes du pré-ampli et de l’ampli de puissance, ce qui permet de produire de nombreux types de sons du son clean cristallin au gain très saturé, et tous les autres situés entre les deux. Les deux canaux ont une variété étendue de contrôles pour vous aidez à créer les textures de son que vous désirez, et comme les contrôles des deux canaux sont totalement indépendants, vous n’avez pas besoin de faire de compromis pour obtenir la palette de sons souhaitée.

En plus des contrôles mentionnés précédemment, l’ampli dispose d’une reverb à ressort avec un contrôle pour chaque canal, commutable au pied, plus une boucle d’effet avec un contrôle de volume et un bypass commutable. La sortie d’extention DI dispose d’une sortie symétrique XLR et d’une sortie asymétrique jack avec des contrôles de volume rotatifs et une prise de terre commutable. Pour permettre une bonne connectivité dans un PA ou un enregistreur, la DI dispose d’un émulateur avec filtre basse fréquence (Low Pass Filter). Celui ci peut être utilisé ou pas sur le circuit requis. Un autre grand plus du circuit DI est placée après le lampe d’inversion de phase de l’ampli de puissance et avant le contrôle du master volume de sortie. Cela signifie que quelque soit le niveau sonore de votre enregistrement, vous avez un contrôle totalement indépendant du niveau de la sortie DI. Vous pouvez même totalement couper le volume principal et utiliser la sortie DI pour un enregistrement silencieux lors de prises de nuit.

Même si vous êtes un expert des amplis, nous vous suggérons vraiment de lire ce manuel avant d’allumer votre ampli. Il y a peut être quelque chose dans ces pages que vous ne savez pas. Même si ce n’est pas le cas, nous espérons vous avoir diverti en vous apprenant des choses sur votre nouveau CLASSIC PLUS.

Après avoir lu ce manuel, veuillez brancher votre guitare, allumer votre ampli et envoyer du vrai ROCK ...

Merci

CONTROLES ET FONCTIONS DU PANNEAU AVANT

SECTION ENTREE

1. Connecteurs d’entrée Jack

Comme son nom l’indique, ce connecteur est utilisé pour brancher votre guitare à l’ampli. Il est important de rappeler que l’utilisation de câbles de bonne qualité est primordiale pour obtenir la meilleure performance possible. Bien que de bons câbles puissent être relativement chers, c’est sans aucun doute un investissement qui vaut le coup. Nous recommandons les câbles Vox. N’hésitez pas à contacter votre magasin revendeur si vous avez besoin de conseils pour choisir un câble haute qualité.

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2. Commutateur de sélection de canal

L’interrupteur sur le panneau avant noté CHANNEL1/CHANNEL2 est utilisé pour choisir chaque canal: CHANNEL 1 est principalement le canal utilisé pour les sons CLEAN/CRUNCH & CHANNEL 2 est fait pour obtenir des sons lourds et saturés. Le connecteur FOOTSWICH monté à l’arrière est également disponible pour connecter le boîtier de commutation fonctionnant au pied (VOX VF002).

Rappelez-vous ! Pour utiliser la fonction Footswitch du panneau avant, l’interrupteur Switch doit être placé en

position CHANNEL 2. La LED associé aux canaux (V ert pour Ch1, Rouge pour Ch2) s’illumine quand chacun des canaux est sélectionné.

SECTION CANAL 1

3. CONTROLE DE GAIN

Ce contrôle régule le niveau du signal d’amplification généré dans le circuit de préamplification du canal 1, et à ce titre, règle les qualités du son de base du canal. La conception du circuit du canal 1 est basée sur le modèle du canal Top Boost du mythique VOX AC30. Par conséquent, le son de base de ce canal est le son typique des amplis Vox. Mais par de subtils changements et modifications, ce canal pourra également vous donner des sons Crunch sérieusement rock. Bien que différents types de guitares et micros donnent des niveaux de sortie très différents faisant varier les réglages d’amplis suivant le type de guitare, généralement le principe de base est que les sons clairs sont situés entre Off (naturellement) et la position du bouton situé à 2 heures. Après cela, le préampli du canal commencera doucement à donner une distorsion crunchy, avec le maximum de distorsion à Full (bien sûr !). Bien que ce canal ne soit pas vraiment fait pour un gain élevé (nous avons laissé ça au canal 2), le niveau de distorsion peut s’avérer très satisfaisant.

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