Samson SAVR88A User manual

P R O F E S S I O N A L     M I C R O P H O N E S
Active Velocity Ribbon Microphone
Copyright 2007, Samson Technologies Corp.
Printed January, 2007 v1.0 Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.samsontech.com
Table of Contents
VR88 Proper Care and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
VR88 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Operating the VR88 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operating the VR88 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
VR88 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
VR88 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
VR88 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using the SP88 Shock-Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
VR88 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 13

VR88 Proper Care and Handling

Your new VR88 ribbon microphone is a sophisticated audio instrument and with proper care and handling it will provide years of enjoyable and reliable performance. Follow each point below to ensure a your microphone remains in good condition.
Handle the VR88 carefully and avoid dropping the microphone.
Always store the VR88 in its case. It’s a good idea to keep the case upright so that the microphone is at a ninety-degree angle with the floor or storage shelves.
Always keep the included sock on the microphone when you’re handling it or when it’s set up but not in use. Always cover the microphone with the included sock when moving the microphone around the studio or sound stage.
Be mindful of, and protect the microphone's ribbon element from direct blasts of air.
Whenever possible, use a pop filter on vocals and other plosive sounds to avoid excessive blasting on the ribbon element.
Be sure to lower the mixer’s channel and master faders when connecting or disconnecting the microphone, and when switching the phantom power supply on and off.
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Be sure to use good working, high quality cables like the included Samson Tourtek TM20L XLR mic cable.
Keep the microphone clean and free from contact with any foreign particles.
Don’t use the VR88 in close proximity of an AC motor.
While traveling on an aircraft, never transport the VR88 in a non­pressurized luggage compartment. If possible, hand carry it on to the plane.
If you lend your VR88 to a friend, make sure that they are familiar with the operation of ribbon mics and understand all of the points above.
3

Introduction

Congratulations on your purchase of the VR88 velocity ribbon microphone from Samson Audio! The VR88 features a fine, pure aluminum corrugated foil ribbon suspended within an intense neodymium field producing a warm and natural response that's silky smooth from bottom to top. The VR88 combines the sweetness of traditional classic ribbon technology with the precision and versatility of advanced condenser microphone head-amplifier
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electronics. Like a modern condenser microphone, the VR88 operates on standard 48-volt phantom power. This provides the VR88 with a high output that’s compatible with any mic pre amplifier. Unlike old ribbon microphones, you don’t have to worry about impedance mis-matches and the VR88 has no problems with long cable runs. The VR88 is capable of handling high sound pressure levels (135 dB), making it an excellent choice for miking vocals, as well as acoustic instruments and even percussion or loud guitar amplifier stacks.
In these pages, you’ll find a detailed description of the features of the VR88 Studio Condenser Microphone, as well as step-by-step instructions for its setup and use, and full specifications. You’ll also find a warranty card enclosed—please don’t forget to fill it out and mail it in so that you can receive online technical support and so we can send you updated information about these and other Samson products in the future. Also, be sure to check out our website (www.samsontech.com) for complete information about our full product line.
With proper care, your VR88 will operate trouble free for many years. We recommend you record your serial number in the space provided below for future reference.
Serial number: ____________________________________
Date of purchase: __________________________________
Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800­372-6766) for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible, return the unit in the original carton and packing materials. If you purchased your Samson product outside the United States, please contact your local distributor for warranty information and service.
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VR88 Features

VR88 Features   
Active Velocity Ribbon Microphone.
The microphone's element features a 2.5-inch long, 2-micron thin, 99 percent pure aluminum corrugated ribbon, set in a precise flux field created by a precision tooled, neodymium magnet structure.
Bidirectional, Figure-8 pick-up pattern.
Active head amplifier with 48 volt phantom power operation.
Capable of handling signals with high (135 dB) SPL’s (Sound Pressure Levels).
Smooth and transparent sound reproduction great for warming up digital tracks.
Internal shock-mount.
Solid die cast construction.
Shockmount and swivel stand mount included.
Samson Tourtek 20-foot right angle XLR cable included.
Aluminum carry case included.
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5

Operating the VR88

Powering the VR88
The VR88 features an active head amplifier and therefore needs to be operated by connecting a phantom power supply. Phantom power is standard on most quality mixers, outboard mic-pres and hard disk recorders. If necessary, an external phantom supply can also be used. The VR88 receives the phantom power directly from a mic cable when connected to a mixer or other microphone input that includes a phantom
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supply. Most mixers have a switch to engage the phantom power so be sure to check that the phantom power is on.
Polar Pattern
The most important characteristic of any microphone is its directionality or “pick­up pattern”. There are three basic categories of pick up patterns; omnidirectional, unidirectional and bidirectional. Omnidirectional mics pick up sound from all directions while unidirectional, or cardioid, mics pick up the sound from the front and reject the sound from the rear. Bidirectional, or figure-8, mics pick up the sound directly in front and back of the microphone while rejecting the sound on the left and right sides.
While omni and unidirectional microphones are very useful for a variety of applications, the VR88's bidirectional pick up pattern is very desirable and performs well in many recording situations. You can use the bidirectional pattern to capture room ambiance by carefully placing the microphone between the sound source and studio walls. You can also capture the simultaneous performance of two instruments or vocalists by positioning the microphone directly between them, so one is addressing the front of the microphone and the other the rear.
Microphone Placement
In order to maximize the sound quality, you must pay careful attention to the placement of your VR88 and how it is positioned for the instrument or vocalist that you are miking. The VR88 is a side address microphone employing a bidirectional pick up pattern, so it picks up sound from the front and rear. All microphones, especially unidirectional and bidirectional microphones, exhibit a phenomenon known as “proximity effect.” Very simply put, proximity effect is a resulting change in the microphone's frequency response based on the distance of the mic capsule relative to the sound source. Generally, you will get a bass boost when miking in close. It is also important to pay attention to the direction of the microphone's element. When you point a unidirectional or bidirectional mic directly at the sound source (on axis) you will get the best frequency response, however when you start pointing the microphone slightly away (off axis) you will notice the high frequency response dropping off and the microphone will start to sound like it has more bass.
For most vocal applications you’ll want to position the microphone directly in front of the artist. The same may be true for miking instruments, however, you can make
6

Operating the VR88

some pretty amazing equalization adjustments by slightly changing the angle of the capsule to the sound source. This can be a very useful technique in capturing the optimum sound of a drum set, acoustic guitar, piano or other instruments in a live room or sound stage. Experimentation and experience are the best teachers in getting good sounds, so plug in! For more information on microphone placement, see the section, "VR88 Applications" later in this manual.
Setting Up the Signal Level
When connecting the VR88 to a mixer or recorder input, be sure that the input is of microphone level. Also, be sure that the phantom power is engaged (as explained the previous section “Powering the VR88”). Most mixers and recorders of reasonable quality will offer a microphone input with mic trim (usual called Trim or Gain) control. The purpose of the mic trim control is to optimize the amount of good signal to any noise associated with the mixers electronics. A good mic pre with trim also will have a PEAK or CLIP LED. To set a good level on the mic, set the VR88 up in front of the desired sound source and slowly raise the mic trim control until you see the PEAK LED light up. Then, turn the mix trim control down until the LED does not light any more. On most mixers, the ideal setting is that the trim control is turned up as much as possible without lighting the PEAK LED.
P-Popping
P-Popping is that annoying pop that you can get when the microphone diaphragm gets a blast of air from a vocalist pronouncing words with the letter “P” included. There are a few ways to deal with the problem including using an external pop filter. Some famous engineers have relied on an old nylon stocking stretched over a bent clothes hanger, which actually works very well, but can be a little smelly. You can also try placing the microphone slightly off axis (on a slight angle) from the vocalist. This can often solve the problem without using an external pop filter. However, on the VR88 or any ribbon microphone, use of an external pop filter like the Samson PS01 is strongly recommended.
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Stand Mounting the VR88
The VR88 can be mounted to a standard microphone stand using the included swivel mount adapter. If you are using a U.S. 5/8” mic stand, you will need to remove, by unscrewing, the Euro stand adapter from the swivel's threaded insert. Simply screw on the swivel adapter on your mic stand or boom arm. Now, loosen the thumbscrew and adjust the microphone to the desired angle. Once set, tighten the thumbscrew to secure the microphone in place. For more information on using the swivel and shockmount, see the section "Using the SP88 Shockmount" on page 11 in this manual.
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Two Feet
Four to Six Feet

VR88 Applications

The VR88 is an excellent choice for miking a variety of sound sources including vocals, piano, reed and brass instruments, electric and acoustic guitars and choirs and orches­tras to name just a few.
Vocals
When using the VR88 on vocals, use of an external pop filter is strongly recommended. Position the microphone in front of the artist so that the microphone grill is approxi-
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mating 4 to 10 inches away. You can record a group of vocalist by positioning them around the front and rear of the microphone. Just remember that the extreme sides of the microphone picks up nothing due to the VR88’s bidirectional pick up pattern. Since the VR88’s frequency response remains flat off axis, you don’t have to be concerned about the microphone sounding different from center to sides.
Reed Instruments
When recording saxophone or clarinet, place the VR88 one to two feet from the instrument. When placing the microphone closer to the source, you will capture more of the direct sound and less of the reflected sound. Be aware of the reflected sound when positioning the artist and microphone near the studio walls. Often you can use the wall to capture some natural echo. Ever notice that saxophonists like to warm up in some corner somewhere? They’re telling you something. You can change the delay time by adjusting the distance between the microphone, performer and the wall. Experiment around and you can get some amazing recordings.
Brass
Recording brass instruments is handled very nicely by the VR88. The VR88 should be positioned approximately two feet away when recording brass instruments. (figure 1.) If you are recording a group of brass and reed instruments increase the distance of the microphone. (figure 2.)
Piano
There are many great techniques for recording piano, regardless of what microphone you use. Often piano tracks are recorded in stereo so using two VR88’s is a great solution. The VR88’s are an excellent choice on piano since their active ribbon technology does not exhibit the comb filtering normally associated with condenser microphones. When recording piano, you first need to decide what kind of sound is re­quired for the project. For an ensemble performance a more direct or up front sound will be captured with the microphones positioned closer to the strings. So if you want the track to lie in the mix position move the mics closer (favoring the mid and upper strings). For a solo performance, position the microphones further back from the piano to capture more of the room ambiance.
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Figure 1.
Figure 2.

VR88 Applications

Strings
When recording a solo string instrument like a violin, place the VR88 one to three feet from the instrument. When recording a string section, try to position one or more VR88’s several feet from the players. If the size of the room permits, raise the micro­phones three or four feet above the section and position them at a 45-degree angle, facing down.
Drums The VR88 is an excellent overhead microphone to record drums. For stereo overheads, use two VR88’s approximately four feet above the kit. You can set the spread depend­ing on how large the kit is, however, generally you position one over the hi-hat and the other over the floor tom.
Recording Sounds With High SPL
The VR88 can handle very high SPL’s however blasts of wind can be very damaging to the microphone’s ribbon. Therefore, you need to be certain that the microphone is not receiving harmful blasts of air. Kick drum, electric guitar and bass amplifiers are all ex­amples of common sound sources that can produce blasts of air that can be damaging to your VR88. A simply way to check if there is too much wind blast, is to position your hand where you want to place the mic, if you can feel the air blast, don’t place the mi­crophone there. Another way to protect the ribbon from air blast is to ensure that the microphone is positioned at a slight angle, either vertical or horizontal. It is important that the microphone element does not take a direct blast of air, so a little bit of tilt will help prevent harm to the ribbon.
Guitar amp
On guitar amplifiers, the VR88 will capture the nuance of the performance along with some serious low frequency response. The round bottom end is well suited for reproducing the warm tone of a jazz guitarist’s hollow body and also for delivering the serious chunk desired by today’s modern, drop down guitarists. As with other high SLP sounds, you’ll want to position the microphone at an angle off-axis to the sound source. Position the microphone two to ten inches from the speaker and angle the mi­crophone 7 to 15 degrees off-axis. The side view shows a vertical positioning technique. Figure 3.
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Figure 3.
9
18” to 24”
Minimum 10”
45° Angle
7° to 15° Off Axis
Percussive Wave

VR88 Applications

Kick Drum
The VR88 is an excellent kick drum microphone, but due to the powerful wind blast they produce you must be extremely careful on how you position the microphone.
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For direct miking, position the mi­crophone at least 18 inches from the drum.
For closer miking, place the micro­phone 10 to 18 inches, but be sure to position the microphone at a 45 degree angle to avoid excessive wear to the ribbon. Figure 4.
Kick Drum Side View
Figure 4.
The top view shows a horizontal posi­tioning technique with the microphone tilted 7 to 15 degrees off-axis. Figure 5.
Kick Drum Top View
Figure 5.
10

Using the SP88 Shock-Mount

Using the SP88 “Spider” Shock-Mount
For mounting the VR88 to a mic stand you can use the included swivel adapter or for additional isolation the VR88 can be fitted on the included SP88 “Spider” shock mount. Follow the steps below to install the swivel or SP88 shockmount.
First, screw the swivel mount or shock mount onto your mic stand or boom arm. If you’re using a US 5/8” mic stand or boom, remove the Euro adapter.
Install the VR88 into the swivel or shockmount by fitting the microphone into the center of the holder, positioning the VR88 all the way to the bottom mounting plate. (Figure 1)
Secure the swivel or shockmount by reinstalling the threaded collar, rotating clockwise until tight. (Figure 2)
Now, loosen the thumb screw to adjust the angle of the microphone and position the VR88 to the desired location. Once set, tighten the thumbscrew to secure the microphone in place.
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1
2
 Note: Be careful not to cross thread
or over tighten the threaded collar or thumb screw.
11
VR88 - Consignes d'entretien
Votre nouveau VR88 est un micro à ruban très sophistiqué. Avec un entretien adapté, il vous donnera satisfaction pendant de nombreuses années. Suivez ces consignes pour vous assurer qu'il demeure en bonne condition :
Manipulez le VR88 avec soin et veillez à ne pas l'échapper.
Rangez toujours le VR88 dans sa mallette. Il est préférable de placer la mallette à la verticale, de façon à ce que le micro soit à un angle de 90° par rapport au sol ou aux tablettes de rangement.
Placez la protection fournie sur le micro avant de le déplacer dans le studio ou sur la scène. Couvrez-le toujours avec la protection lorsqu'il est installé mais pas utilisé.
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Pensez à protéger le ruban des déplacements d'air directs.
Essayez autant que possible d'utiliser un filtre anti-pop pour les chants (ou autres sources produisant des sons de "pop") pour éviter les souffles excessifs sur le ruban.
Assurez-vous de baisser le Fader général et le Fader de voie de la console avant de connecter/déconnecter le micro et d'activer/désactiver l'alimentation fantôme.
Assurez-vous d'utiliser des câbles de haute qualité et en bon état, comme le câble XLR Samson Tourtek TM20L fourni.
Veillez à ce que le micro soit à l'abri de toute particule étrangère.
N'utilisez pas le VR88 à proximité d'un moteur à courant alternatif.
Pour le transport en avion, ne laissez jamais le VR88 dans un compartiment à bagages non-pressurisé. Apportez-le avec vous dans l'avion, si possible.
Lorsque vous prêtez votre VR88 à un autre utilisateur, assurez-vous qu'il soit familier avec le fonctionnement des micros à ruban et qu'il comprenne toutes les consignes d'entretien ci-dessus.
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Introduction
Merci d'avoir choisi le micro à ruban sensible à la pression VR88 de Samson Audio ! Le VR88 est équipé d'un ruban ondulé en aluminium pur suspendu au milieu d'un champ magnétique généré par un aimant au néodyme puissant, ce qui permet d'offrir une réponse riche, naturelle et linéaire sur toute l'étendue du spectre sonore. Le VR88 combine la douceur des micros à ruban Vintage conventionnels avec la précision et la polyvalence des circuits de préamplification des micros à condensateur perfectionnés. Tout comme les micros à condensateur modernes, le VR88 nécessite une alimentation fantôme 48 V. Ce micro peut ainsi offrir un niveau de sortie élevé et il est compatible avec tous les préamplis micro. Contrairement aux anciens micros à ruban, vous n'avez pas à vous soucier des différences d'impédances. De plus, le VR88 peut être utilisé sans problème avec les longs câbles et il est conçu pour supporter des niveaux sonores très élevés (135 dB). Il est donc le micro par excellence pour l'enregistrement des chants, des instruments acoustiques, des percussions et des Stacks d'amplificateurs guitare puissants.
Dans ces pages, vous trouverez une description détaillée de toutes les caractéristiques du micro à condensateur VR88, les instructions d’utilisation et de configuration, ainsi que les caractéristiques techniques. Vous trouverez également une carte de garantie : n’oubliez pas de la remplir et de nous l’envoyer pour pouvoir bénéficier de l’assistance technique en ligne et recevoir les informations sur les produits Samson. Pensez également à visiter notre site (www.samsontech.com) pour obtenir des informations sur tous nos produits.
Avec un entretien adapté, votre VR88 vous donnera satisfaction pendant de nombreuses années. Prenez le temps de noter le numéro de série et la date d'achat pour toute référence ultérieure :
Numéro de série : Date d'achat :
____________________________________
__________________________________
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Pour faire réparer votre micro, vous devez d'abord obtenir un numéro d'autorisation de retour auprès de nos services. Sans ce numéro, nous ne pouvons pas accepter le produit. Si vous avez acheté le produit aux USA, appelez Samson au 1-800-3SAMSON (1-800-372-6766) pour obtenir un numéro de retour avant de nous le renvoyer. Veuillez si possible conserver le matériel d’emballage afin de l’utiliser en cas de retour. Si vous avez acheté le produit hors des USA, contactez votre revendeur Samson.
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VR88 - Caractéristiques
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VR88 - Caractéristiques   
Micro à ruban actif sensible à la pression.
Ruban ondulé (en aluminium pur à 99 %) de 2 microns et de 6,4 cm de long, disposé au milieu d'un champ magnétique généré par un aimant au néodyme usiné avec précision.
Structure polaire bi-directionnelle (en forme de 8).
Préamplificateur actif avec alimentation fantôme 48 V.
Capacité à supporter les niveaux de pression sonore SPL élevés (135 dB).
Reproduction sonore limpide et homogène permettant d'ajouter de la chaleur aux enregistrements numériques.
Structure anti-choc intégrée.
Construction moulée très robuste.
Suspension anti-choc et adaptateur pivotant fournis.
Câble XLR Samson Tourtek (6 mètres) à angle droit fourni.
Mallette de transport en aluminium fournie.
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Utilisation du VR88
Alimentation du VR88
Le VR88 est équipé d'un préamplificateur actif et il doit donc être alimenté par une alimentation fantôme. Ce type d'alimentation est offert sur la plupart des consoles, préamplis externes et enregistreurs sur disque dur de qualité. Vous pouvez également utiliser une alimentation fantôme externe, si nécessaire. Lorsque le VR88 est relié à une console (ou à tout autre équipement muni d'une entrée micro et d'une alimentation fantôme), la tension d'alimentation est acheminée directement sur le câble du micro. La plupart des consoles sont pourvues d'un interrupteur permettant d'activer l'alimentation fantôme. Vérifiez si elle est activée.
Structure polaire
La directivité est la caractéristique la plus importante des micros. Il existe trois principaux types de diagrammes polaires : omni-directionnel, bi-directionnel et uni-directionnel. Les micros omni-directionnels captent les signaux provenant de toutes les directions, les micros uni-directionnels (cardioïdes) ne captent que ceux provenant de l’avant et les micros bi-directionnels captent ceux provenant de l’avant et de l’arrière et ils atténuent les sons latéraux (gauche, droite).
Les micros omni-directionnels et uni-directionnels s’avèrent très pratiques pour bon nombre d’applications. Cependant, la structure bi-directionnelle du VR88 permet de meilleurs résultats pour l'enregistrement de la plupart des instruments. En effet, vous pouvez capter l'ambiance de la pièce en plaçant le micro entre la source sonore et les murs du studio. Il est également possible de capter simultanément le son de deux instruments ou chanteurs en installant le micro directement entre les deux, de façon à ce que les instruments/chanteurs soient placés devant et derrière le micro.
Positionnement du micro
Le positionnement du VR88 par rapport à l’instrument ou au chanteur que vous enregistrez influence directement la qualité sonore finale. Le VR88 utilise une struc­ture polaire bi-directionnelle permettant d'atténuer les sons latéraux et de capter les sons provenant de l'avant et l'arrière. Tous les micros, et en particulier les micros uni-directionnels ou bi-directionnels, sont très sensibles à un phénomène connu sous le nom “d’effet de proximité”. En termes simples, l’effet de proximité se caractérise par une variation de la réponse en fréquence du micro en fonction de la position de la capsule par rapport à la source sonore. En général, plus le micro est près de la source, plus les basses fréquences sont accentuées. Il est aussi important de porter attention à l'orientation de l'élément du micro. Dans les faits, lorsque vous pointez un micro uni-directionnel ou bi-directionnel en direction de la source sonore (dans l’axe), la réponse en fréquence s’améliore ; à l’inverse, lorsque vous désaxez le micro par rap­port à la source, les hautes fréquences sont atténuées et le son devient plus sourd.
Pour la plupart des applications de chant, il est préférable de placer le micro juste devant l’artiste. La même règle peut s’appliquer pour les prises d’instruments.
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