Crate Amplifiers VC-50H User's Manual
Contents
1. VC 50H Vintage Club Amplifier r z m A e 1 Owner s Manual VC 50H Vintage Club Amplifier Congratulations You are now the proud owner of one of the newest and most versatile tube amplifiers available for the guitar the VC 50H This remarkable amplifier offers tremendous flexibili ty and portability with two separate channels and silent switching for a uniquely rich palette of tonal variety and simplicity of control over your sound Your VC 50H amplifier is musician made in the U S A using the finest components available Each unit is rigorously tested by skilled technicians and musicians to ensure that your amplifier is the best it can be In order to get the most out of your new amplifier we strongly urge you to go over the information contained in this manual before you begin playing And thank you for choosing ATE CAUTION ATTENTION VORSICHT DO NOT OPEN NE PAS OUVRIR NICHT OFFENEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK ATTENTION POUR REDUIRE D ELECTROCUTION NE PAS VORSICHT ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT DO NOT REMOVE COVER ENLEVER LE COUVERCLE AUCUNE PIECE INTERNE N EST REPRABLE DEN DECKEL ABENHMEN INTERNE TEILE KONNEN NICHT VOM NO USER SERVICEABLE PARTS INSID PAR L UTILISATEUR POUR TOUTE REPARATION S ADRESSER A UN BENUTZER GEWARTET WERDEN DIE WARTUNG IS QUALIFIZIERTEM REFER SERVICING TO QUALIFIED SERVICE2. TECHNICIEN QUALIFIE WARTUNGSPERSONAL ZU UBERLASSEN THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION INORDER TO PROLONG THE LIFE OF THE UNIT AND PREVENT ACCIDENTAL DAMAGES OR INJURY PLEASE FOLLOW THESE PRECAUTIONARY GUIDELINES CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT OPEN CHASSIS DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER CORD CONNECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL CAUTION THIS UNIT IS CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS USER CAUTION IS ADVISED AND EAR PROTECTION RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME THE CHART BELOW SHOWS THE U S GOVERNMENT S OCCUPATIONAL SAFETY AND HEALTH ADMINIS TRATION OSHA REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE PER 29CFR1910 95 TABLE G 16 SOUND LEVEL DBA DURATION PER DAY SOUND LEVEL DBA DURATION PER DAY SLOW RESPONSE IN HOURS SLOW RESPONSE IN HOURS 8 1 11 2 1 1 2 1 4 or less 6 4 3 2 ACCORDING TO OSHA ANY EXPOSURE IN EXCESS TO THESE AMOUNTS LISTED ABOVE COULD RESULT IN SOME HEARING LOSS DANGEROUS VOLTAGE IT IS NECESSARY FOR THE USER TO REFER TO THE INS
3. was purchased outside the United States see the rear panel serial number label for volt age and current information IMPEDANCE SWITCH For the best performance and least strain on the amp you MUST match the amp s impedance to that of your speaker cabinet s Set the selector switch to the 8 or 16 ohm position depending on the total impedance of your cabinets The chart below can help you determine that impedance based on the follow ing combinations of speakers connected in parallel CAB IMP CABS TOTAL IMP 16 ohms 2 8 ohms 32 ohms 2 16 ohms 32 ohms 4 8 ohms SPEAKER JACKS Connect the amplifier to your speak er cabinet s via these jacks using heavy duty speaker cables not instrument patch cords Use cabinets rated at 8 ohms or higher in combinations which never create a load lower than 8 ohms Make sure the Impedance switch 18 is properly set Always use the MAIN speaker jack first then connect to the EXTENSION jack if using more than one cabinet Connecting to the Effects Loop Jack The front panel Effects Loop jack 6 lets you patch external effects into the VC 50H just prior to its power amp stage When using Crate s STP201 STP202 or STP203 stereo to mono Y cord connect its 1 4 stereo plug into the 5 Insert jack its send plug into the IN jack of the effect and its return plug into the OUT jack of the effect Another method is to buy or make a stereo to mono Y adapter such as C
4. ENSION SPEAKER VC 50H Vintage Club Amplifier TECHNICAL SPECIFICATIONS Output Power Rating 50W RMS 10 THD 8 ohm load 120 VAC Input Impedance 1M ohm Maximum Signal Accepted 2 8V peak to peak Signal To Noise Ratio Channel B 52dB Channel A 58dB Gain Channel B 75dB Channel A 68dB Tone Control Range Channel B Bass 12dB range 60Hz Mid 10dB range 600Hz Treble range 4kHz Channel A Bass 20 range 70Hz Treble 16dB range 2kHz Line Out Level 375mV RMS full power output Tube Types Preamp 4 12AX7 Power Amp 4 EL84 6BQ5 Power Requirements 120VAC 60Hz 145VA 30W 170VA 50W 100 115VAC 50 60Hz 145VA 30W 170VA 50W 230VAC 50 60 2 145VA 30W 170VA 50W Size and Weight 21 25 W x 11 H x 11 25 D 35 lbs To keep this amplifier looking its best avoid abrasive cleaners Wipe the cabinet clean using a slightly dampened cloth Never use abrasive cleaners on the hardware since they could damage their protective coatings Crate continually develops new products as well as improves existing ones For this reason the specifications and information in this publication are subject to change without notice ST LOU JURI l es www crateamps com 2001 SLM ELECTRONICS division of St Louis Music 1400 Ferguson Avenue St Louis Mo 63133 P N 47 547 13 05 01
5. TRUCTION MANUAL EXPLANATION OF A DANGER HAUTE TENSION 4 REFER VOUS AU MANUAL D UTILISATION GRAPHICAL SYMBOLS GEFAHLICHE SPANNUNG UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN VC 50H Vintage Club Amplifier TABLE OF CONTENTS Features The Front Panel Controls and Their Use The Rear Panel Connecting to the Effects Loop Jack Some Suggested Settings System Block Diagram Technical Specifications Features All tube operation for classic vintage growl and howl as you want it when you want it Two completely independent channels with individual gain and tone controls Quick silent channel switching from the front panel or with footswitch provided e Individual reverb return controls for each channel e Buffered Effects Loop jack use stereo to mono Y cord to patch in your favorite effect s e Specially designed paper bobbin output transformer for a true vintage sound e Drives 8 16 ohm speaker cabinets with no problem and delivers lots of true vintage tone tone tone e Durable tolex covering and special cosmetic treatments for a unique stage appearance VC 50H Vintage Club Amplifier INPUT VOLUME EFFECTS 000 The Front Panel Controls Their Use 1 INPUT This jack accepts a high impedance signal from a guitar bass keyboard etc CHANNEL A VOLUME This control sets the level of Channel A The sound is brighter at lower settings and ca
6. el B CHANNEL B LEVEL The overall volume level of Channel B is controlled with this knob When set at 2 o clock the power amp begins to be overdriven for true power amp distortion CHANNEL A REVERB LEVEL This control adjusts the amount of reverb on Channel A CHANNEL B REVERB LEVEL This control adjusts the amount of reverb on Channel B FOOTSWITCH JACK Use the supplied single button footswitch Crate model CFP 1 or an equivalent 10 achieve silent remote channel switching Plugging in the footswitch deactivates the front panel channel switch 5 STANDBY SWITCH This switch should remain turned off when the unit is first turned on in order to allow the tubes to warm up properly before high voltage is applied to them The Standby switch should also be turned off dur ing extended breaks in playing when the amp is left on This will help ensure longer tube life MAINS SWITCH This switch applies power to the unit when switched to the on up position The Standby and Power switches light up when on VC 50H Vintage Club Amplifier SPEAKER SPEAKERS IMPEDANCE 50 WATTS RMS F N A EXT MAI N St Louis MO 63133 05 5 Rear Panel 17 18 19 AC LINE CORD Connect the male end of this heavy duty power cord to a properly grounded AC power outlet of the correct voltage DO NOT attempt to defeat the ground pin of the power cord If your amplifier
7. n be cranked up for a crunchy rhythm sound CHANNEL A TREBLE This control adjusts the level of high frequency response on Channel A CHANNEL A BASS This control adjusts the level of low frequency response on Channel A When playing at extreme volume levels you might want to back this control down just a bit CHANNEL SELECT Silent channel switching is achieved with this button When the footswitch is plugged in this but ton is deactivated EFFECTS LOOP JACK This jack provides a line level access point between the preamp and the power amp The output is buffered by a single transistor It is out of the cir cuit completely when nothing is plugged into it Use a Crate Model CYC6MS mono to stereo Y cord or a Y adapter with extenders For more details refer to the section Connecting to the Effects Loop Jack on the following page CHANNEL B GAIN Use this control to achieve sounds ranging from bluesy crunch to full tilt hard rock rhythm Experimenting with a combination of the gain and volume controls on the amp along with your guitar s volume con trols can produce a wide variety of useable sounds CHANNEL B TREBLE This control adjusts the level of the high frequency response on Channel B 9 CHANNEL MID This control adjusts the amount of 10 11 12 13 14 15 16 midrange frequency response on Channel B CHANNEL B BASS This control adjusts the level of low frequency response on Chann
8. rate s YPP117 and use two 1 4 signal cables to patch into the effect as shown below Stereo to mono Y cord Y adapter and 2 cables to Insert RETURN TIP to Insert jack SEND RING jack SLEEVE GROUND SLEEVE 5 201 3 STP202 6 STP203 9 YPP117 MONO SHIELDED CABLES N 0 0 effect effect OUT IN jack jack 1 External Effect External Effect VC 50H Vintage Club Amplifier Some Suggested Settings SPARKLING CLEAN CRUNCH RHYTHM INPUT OLUM ASS CTS 1000 OAIE es o DD 0 Sis ee Cal WARM amp CLEAN BLUESY GRIND NDUT OLUM ASS CTS 1000 PREDER EAA 0 STANDBY BLUESY DIRT DRIVE EM MAD SHRED INPUT OLUM ASS CTS 1000 ORRON OD 0 ee Ha TRY THESE MIDNIGHT INPUT OLUM ASS CTS 1000 AIN OO 0 ee SST TAND YEMAS VC 50H Vintage Club Amplifier System Block Diagram SECOND CHANNEL A GAIN CHANNEL A P TONES amp VOLUME FIRST VOL TREB BASS INPUT gt Jre 51 CHANNEL TONE PRE EMPHASIS CHANNEL B TONES amp LEVEL GAIN SECOND FOURTH GAIN GAIN amp FIFTH GAIN STAGE TREB MID BASS LEVEL FOOTSWITCH REVERB REVERB gt 0000 gt LEVELS g INSERT SPEAKER PHASE POWER SPLITTER AMP EXT
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