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Yorkville 55 P
550 WATT POWERED LOUDSPEAKER ENCLOSURE
MODEL TYPE:YS1002
OWNER'S MANUAL
MANUEL de L'UTILISATEUR
IMPORTANT SAFETY INSTRUCTIONS
This 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.
Ce symbole d’éclair avec tête de flèche dans un triangle équilatéral est prévu pour alerter l’utilisateur de la présence d’un « voltage dangereux » non-isolé à proximité de l’enceinte du produit qui pourrait être d’ampleur suffisante pour présenter un risque de choque électrique.
S2125A
The exclamation point within an equilatereal triangle is intended to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying the appliance.
Le point d’exclamation à l’intérieur d’un triangle équilatéral est prévu pour alerter l’utilisateur de la présence d’instructions importantes dans la littérature accompagnant l’appareil en ce qui concerne l’opération et la maintenance de cet appareil.
FOLLOW ALL INSTRUCTIONS
Instructions pertaining to a risk of fire, electric shock, or injury to a person
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
Read Instructions: The Owner’s Manual should be read and understood before operation of your unit. Please, save these instructions for future reference and heed all warnings.
Clean only with dry cloth.
Packaging: Keep the box and packaging materials, in case the unit needs to be returned for service.
Warning: To reduce the risk or fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water!
Warning: When using electric products, basic precautions should always be followed, including the following:
Power Sources
Your unit should be connected to a power source only of the voltage specified in the owners manual or as marked on the unit. This unit has a polarized plug. Do not use with an extension cord or receptacle unless the plug can be fully inserted. Precautions should be taken so that the grounding scheme on the unit is not defeated.
Hazards
Do not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing serious personal injury and serious damage to the product. Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturer’s instructions when installing the product and use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water; no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the external wiring connected to these terminals require installation by an instructed person or the use of ready made leads or cords.
Ensure that proper ventilation is provided around the appliance. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
No naked flame sources, such as lighted candles, should be placed on the apparatus.
Power Cord
Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades 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.The AC supply cord should be routed so that it is unlikely that it will be damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.
Unplug this apparatus during lightning storms or when unused for long periods of time.
Service
The unit should be serviced only by qualified service personnel.
SUIVEZ TOUTES LES INSTRUCTIONS
Instructions relatives au risque de feu, choc électrique, ou blessures aux personnes
AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC
ELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LE
PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
Veuillez Lire le Manuel: Il contient des informations qui devraient êtres comprises avant l’opération de votre appareil. Conservez. Gardez S.V.P. ces instructions pour consultations ultérieures et observez tous les avertissements.
Nettoyez seulement avec le tissu sec.
Emballage: Conservez la boite au cas ou l’appareil devait être retourner pour réparation.
Avertissement: Pour réduire le risque de feu ou la décharge électrique, n'exposez pas cet appareil à la pluie ou à l'humidité.
N’utilisez pas cet appareil près de l’eau!
Attention: Lors de l’utilisation de produits électrique, assurez-vous d’adhérer à des précautions de bases incluant celle qui suivent:
Alimentation
L’appareil ne doit être branché qu’à une source d’alimentation correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée. Ne pas utiliser cet appareil avec un cordon de raccordement à moins qu’il soit possible d’insérer complètement les trois lames. Des précautions doivent êtres prises afin d’eviter que le système de mise à la terre de l’appareil ne soit désengagé.
Risque
Ne pas placer cet appareil sur un chariot, un support, un trépied ou une table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir des dommages importants. Utiliser seulement un chariot, un support, un trépied ou une table recommandés par le fabricant ou vendus avec le produit. Suivre les instructions du fabricant pour installer l’appareil et utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des éclaboussures et qu’aucun objet rempli de liquide tel que des vases ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation. Ne procédez pas à l’installation près de source de chaleur tels que radiateurs, registre de chaleur, fours ou autres appareils (incluant les amplificateurs) qui produisent de la chaleur.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties dangereuses au toucher et que les câblages extérieurs connectés à ces dispositifs de connection extérieure doivent être effectivés par un opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’Alimentation
Ne pas enlever le dispositif de sécurité sur la prise polarisée ou la prise avec tige de mise à la masse du cordon d’alimentation. Une prise polarisée dispose de deux lames dont une plus large que l’autre. Une prise avec tige de mise à la masse dispose de deux lames en plus d’une troisième tige qui connecte à la masse. La lame plus large ou la tige de mise à la masse est prévu pour votre sécurité. La prise murale est désuète si elle n’est pas conçue pour accepter ce type de prise avec dispositif de sécurité. Dans ce cas, contactez un électricien pour faire remplacer la prise murale. Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil.
safety-4v5.eps • April 3/2007
NX55P Active Full Range Loudspeaker
Using the popular nx20 as a base, adding 550 Watts of bi-amped power and topping-it-off with aadvanced signal processing, the NX55P is destined to set the new standard for active loudspeakers. The woofer amplifier, or low frequency amplifier, amp delivers over 450 Watts to the 12 inch neodymium woofer. To reduce the overall weight of the amplifier section, the woofer amplifier uses Class D switching technology. A 100 Watt, two-tier linear technology, Class H amplifier drives the 1 inch diaphragm horn driver. This allows the horn to produce clean transients while keeping up with the high output of the woofer. Two-tier amplifier technology isn’t typically seen in a product like this, however we found the advantages (lower weight, more efficiency, higher headroom and lower operating temperature) made it a perfect choice for powering the top end.
This combination of Class D and Class H amplifier technologies helps keep distortion to a minimum while reducing the need for massive heat dissipation. In fact, to a level low enough to eliminate the need for heavy heatsinks. The advantage of this unique combination of two-tier and Class D amplification has reduced extraneous heat to the point
that NX55P’s can easily be
used in any orientation (close to walls, floors and in close arrays with multiple cabinets). Competitive active loudspeakers, with large finned heatsinks, need to be
operated vertically and with plenty of clearance (to ensure proper heat dissipation and ventilation). Since you have more versatility in regards to the orientation of the enclosure, the NX55P becomes ideal for flying in large clusters and in point-source concert sound systems. Yorkville’s designers took extra care making sure that in tight clusters overheating would not be an issue.
Taking advantage of the design process, an opportunity was taken to tweak the electronics for maximum overall speaker performance and protection. Solutions were borrowed from our high-end TX-Series PA systems. The limiters used, at the input and crossover stages, are a complex combination of gain reduction and sweep-
ing filters. If the NX55P is pushed to its maximum input/output levels, advanced filtering begins rolling off unnecessary subsonic frequencies. The processing also protects individual components ensuring failure free operation (even after long term operation at close to maximum output levels). The filter has a remarkable response time, less then 70ms, allowing the system to constantly be re-tuning itself. This makes sure the output is as clean, as loud and as clear as possible at any
moment. This is achieved without negatively affecting the overall sonic quality of the cabinet. This ensures that the essential part of the mix, like the vocals
or solo instruments, come out clean and clear when the cabinet is being operated at the extremes of power and woofer excursion. Ex-
tremely fast and accurate limiting is in place to protect the speaker components.
As a bonus, the NX55P has a built in mixer! This allows the loudspeaker to be
used directly with a microphone and/or line source. The
loop output allows additional active cabinets to be driven from one source (up to a maximum of 50 NX55Ps). If desired, you can combine a pair of the NX55P’s using the mixer inputs on each cabinet and coupling the loop outputs. In this example you would have an ideal presentation system. Two microphone inputs, two line inputs (optimized for CD, Cassette or laptop computer audio source), complete within two speaker cabinets. As mentioned, our active cabinets can be linked together, the limitation is that only three ‘mixers’ can be active at any one time. This allows three Mic sources and six line sources available in an array of three or more cabinets). The microphone inputs have equalization and high pass filtering designed appropriately for vocal applications. The trim control allows looped cabinets to be individually adjusted in level. This is invaluable in applications where large numbers of cabinets are used such as in clusters or in trade show applications (or when NX55P’s are used as repeater cabinets or for side fill). The 100 Hz high pass filters allow the NX55P to be used more efficiently with any active subwoofer.
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Features
•Ultra-clear reproduction throughout the whole bandwidth
•High efficiency, high tech, 550 Watt Biamped power module
•Superior TX-style processing and component protection
•True 1 inch diaphragm horn driver
•Low distortion/high power-handling
12-inch woofer
•– ∞ dB / + 6 dB Level control (for individual cabinet level adjustment)
•XLR and TRS inputs / outputs for easy connection and looping
•Multi-input source mixer for direct inputs
•Direct microphone input with level control
•Two way overall EQ controls
•Integrated flying hardware (3/8 inch threaded holes)
•Tough, full-length metal grille
•Recessed Mixer panel
1.Operation
The NX55P is a bi-amped powered full-range loudspeaker with a built-in two channel mixer. Multiple NX55P cabinets may be connected through the Link option. If you’re using the
NX55P with an external mixer, the internal mixer can be disabled. The built-in mixer has a microphone input and two (combined) ¼ inch inputs for line sources such as CD players. Advanced signal processing is used to give maximum performance at all levels. There’s a switch to provide a low frequency rolloff if you’re going to use the NX55P with a subwoofer.
2. Mic Input
Any regular microphone can be inserted into the Mic input. Phantom power is built–in for condenser microphones.
3. Line/CD inputs
The Line/CD inputs allow line-level sources such as CD players, cassette decks or any other sources such as mixers to be connected. If more than one input is used these inputs blend the signals (e.g. stereo sources) into mono. The inputs are balanced to help reject hum (when used with balanced cables) Unbalanced 1/4-inch plugs can be used. When connecting to unbalanced sources using balanced
T.R.S. cables does help reduce unwanted noise and/or hum. These inputs can be used for lower-level Line inputs, which need a bit more gain (as opposed to using the Link jacks, which have no control). These inputs allow you to have a greater range of level adjustment than using just the NX55P Level control (e.g. if an individual cabinet, in the chain needs to operate at lower level than the rest).
4. Link
These parallel jacks allow multiple NX55P cabinets to be connected together. The Link Jacks are the correct input to use when driving the
NX55P from an external mixer. The Link Jacks operate at line level (+4 dBv) to achieve full power. The NX55P Level control allows operation at levels from –2 dBv to +10 dBv for full power. When operating from signals that are not as strong, use the Line inputs of the first cabinet in the chain. The Link jacks are high quality balanced inputs with very good common mode (hum) rejection. To ensure maximum hum rejection, the proper balanced cables must be used. When connecting to unbalanced sources using balanced
T.R.S. cables does help reduce unwanted noise and/or hum. Jacks marked LINK OUTPUT are connected in parallel with the LINK INPUTS and are provided for convenience to connect downstream cabinets. Link inputs may also be used as outputs and link outputs may be used as inputs.
5. Level Control
This control allows the audio level of the cabinets, linked in a chain, to be individually adjusted. This control does not adjust the level of the Link jacks. The Level control should be set at '0' (center) for most applications.
6. LF Rolloff
For operation with a subwoofer, the LF Rolloff switch shuts off the low frequency boost and filters out signals below 100 Hz. It’s not necessary to use this switch for speech applications because the Mic input already has a high pass filter. This switch only affects the signals to the internal amplifier and does not affect signals going out from the internal mixer, or to signals passing through the Link connections.
7. Mixer On/Off
The Mixer On/Off switch turns the NX55P’s internal mixer on the rear panel on and off. The NX55P’s mixer should be used when a microphone or CD player is directly connected to one of the NX55Ps Line/CD or Mic inputs. It should be switched off* if the NX55P’s Link Input is connected to a separate mixer’s output.
*Note: the NX55P has been designed to enable the user to interconnect multiple NX55Ps (up to 12 or even more) via the Link Inputs and Outputs. When linking NX55P's, a maximum of 3 of the NX55P’s internal mixers can be used (activated) allowing up to 3 microphones and 3 line sources to be mixed without an external mixer. This is useful for smaller music engagements, meetings, seminars, etc.
8. Mic Control
This control adjusts the volume level the Mic input. The microphone signal output to other cabinets through the link connections will be affected as well.
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9. Line/CD Control
This control adjusts the volume level of devices plugged into the Line/CD input. The signal out to other cabinets, from this device, through the link connections will be affected as well. A line-level signal and microphones can be connected simulataneously.
10. Treble and Bass Controls
These controls affect the signals from devices plugged into the Line/CD and Mic inputs.
The signal out, to other cabinets, through the Link will also be affected. These controls do not affect signals coming into the cabinet from the Link connections.
11. Green PWR LED
Illumination indicates that AC power is on and the fuse is functioning.
12. Yellow Limit LED
This indicates that the cabinet is operating at full power and the limiter(s) are actively reducing the signal level. It’s all right to operate in limiting as long as the clip light is not constantly on. The Limit light does not indicate low frequency processing action. There are separate limiters for the woofer and horn. This LED will indicate operation of either limiter.
13. Red Clip LED
The illumination of this LED indicates that the signal level is excessive and may cause distortion. Reduce mixer levels or turn down the Level control (on NX55P) to reduce clipping.
14. Power Switch
This turns the power On and Off to the cabinet. Note; a cabinet that is turned off, but is one of the cabinets in a chain might cause hum (or buzz) in the other cabinets.
15. Fuse
The mains fuse should never blow even in extreme operating conditions. A blown fuse will generally mean that excessive mains voltage has been applied or there’s a serious fault with the unit. Self re-setting thermal switches are built into the power transformer as well as on the internal heat sink. These will not trip even under the most extreme operating conditions and are provided only for safety reasons. Thermal margins may be compromised when operating facing straight up, straight down or while operating in direct sunlight!
A note about unbalanced operation: When connecting an unbalanced source (such as a mixer with RCA outputs) to balanced inputs such as an NX55P, the best hum rejection can be achieved
by running a balanced connection right to the unbalanced plug. The return connection should be connected to ground at the unbalanced plug. The NX55P does not connect the AC power ground directly to the input signal ground. This will eliminate most ground problems.
OUTPUT |
LINK |
INPUT |
LINE / CD |
|
|||
|
BAL |
|
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55 P 
550 WATT POWERED LOUDSPEAKER ENCLOSURE
Specifications
System Type |
2-Way |
|
Active or Passive |
Active |
|
Program Power (Watts) |
550 |
|
Biampable |
Self Powered |
|
Biamp Operation Only |
Yes |
|
Max SPL (dB) |
124 |
|
Frequency Response (Hz +/- 3db) |
45 - 18k |
|
Crossover Frequency (Hz) |
2300 |
|
Driver Configuration |
12 inch / 1 inch |
|
HF Driver(s) |
1 inch Throat, Ceramic Magnet, 1 inch Mylar voicecoil |
|
HF Program Power (Watts) |
100 |
|
HF Dispersion (°H x °V) |
80 x 50 |
|
LF Driver(s) |
12 inch Neodymium Magnet 3 inch voicecoil |
|
LF Program Power(Watts) |
450 |
|
Total Power (Watts) |
550 |
|
HF Amplifier Type |
Two Tier Class H |
|
LF Amplifier Type |
Class D |
|
Power Cable |
Yes |
|
Power Switch |
Yes |
|
Inputs |
7 |
|
Inputs - 1/4" Jacks |
2 (line input) 2 (link in/out) |
|
Inputs - XLR |
1 (mic) 2 (line in/out) |
|
Input Sensitivity (Vrms Sine) |
+4dBv / 1.23V |
|
|
Mixer on/off switch |
|
Mixer Controls |
Mic Gain |
|
Line/CD Gain |
||
|
||
|
Treble/Bass Tweak |
|
Level Controls |
+/- 6dB Main Volume |
|
EQ Controls |
100Hz HP Filter (LF Rolloff) |
|
Limiter |
Yes |
|
LED Indicators |
Power/Clip/Limit |
|
Feet |
Yes |
|
Flying Hardware |
2 (Top), 2 (Bottom), 1 (Pullback) |
|
Optional Flying Hardware |
NX Flyware |
|
Bar Handles |
1 (Side) |
|
Pole Mount Adapter (1 3/8"-3.5cm) |
Yes |
|
Enclosure Materials |
Injection molded Polypropylene |
|
Grille |
Perforated Metal |
|
Dimensions (DWH xbackW, inches) |
12.25 x 16 x 26.5 x 9 |
|
Dimensions (DWH xbackW, cm) |
31.12 x 40.6 x 67.3 x 22.9 |
|
Weight (lbs/kg) |
41 / 18.6 |
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