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VHT AMPLIFICATION VALVULATOR™ GP3 

LIMITED WARRANTY 

 

Subject to the obligations and exclusions found below, this VHT Amplification product is 
warranted against manufacturing defects in materials and workmanship for the period of one (1) 
year from the date of purchase, with the exception of the tubes and fuses, which carry a 90-day 
warranty. 
The warranty period commences on the date of purchase by the original user. Performance under 
this warranty must be obtained at one of the following: a VHT Authorized Service Station, by 
returning the unit to the VHT factory with prior authorization, or (in countries outside of the 
United States) by a representative VHT distributor. 
A list of VHT Authorized Service Stations can be obtained from: VHT Amplification, 1201 
South Flower Street., Burbank, CA 91502 USA, Attn: Warranty Service. Telephone (818) 846-
4000, Fax (818) 846-4040. 

Obligations  

1. This warranty will be honored only on the presentation of the original proof of purchase.  
2. Transportation of the product to and from an authorized VHT service outlet is the 
responsibility of the user. Units sent directly to the VHT factory for warranty repairs must be 
authorized by VHT and shipped prepaid. 

Exclusions  

1. This warranty shall not cover adjustment of customer-operated controls as explained in the 
appropriate model’s instruction manual, or products that have been altered or have missing or 
defaced serial numbers. 
2. This warranty shall not apply to  the appearance of accessory items including, but not limited 
to, cabinets, cabinet parts, or knobs. 
3. This warranty does not apply to uncrating, setup, installation, or the removal and reinstallation 
of products for repair. 
4. This warranty shall not apply to repairs or replacements necessitated by any cause beyond the 
control of VHT including, but not limited to, any malfunction, defects, or failure caused by or 
resulting from unauthorized service or parts, damaged or broken tubes, incorrect line voltage, 
improper maintenance, modification or repair by the user, abuse, misuse, neglect, accident, fire, 
flood, or other Acts of God. 
5. Responsibility for the repair of any VHT product sold outside of U.S. boundaries is borne by 
the VHT representative in that particular country or territory. Also, the warranty term and 
conditions may be different from those stated above. Please contact the VHT distributor or dealer 
in your country for more information. 
The foregoing is in lieu of all other expressed warranties, and VHT does not authorize any party 
to assume for it any other obligation or liability. In no event shall VHT be liable for special or 
consequential damages arising from the use of this product, or for any delay in the performance 
of this warranty due to  causes beyond our control. Some states do not allow limitations on how 
long an implied warranty lasts and/or do not allow the exclusion or limitation of consequential 
damages, so the above limitations on implied warranty and consequential damages may not apply 
to you. This warranty gives you specific legal rights. You may have other rights that vary from 
state to state.

  

 
 

VHT AMPLIFICATION, INC.  1201 SOUTH FLOWER STREET, BURBANK CA  91502 

COPYRIGHT 2003 

Summary of Contents for Valvulator GP3

Page 1: ...VALVULATOR GP3 VERY LOW POWER VACUUM TUBE GUITAR AMPLIFIER PRELIMINARY OWNERS MANUAL...

Page 2: ...ce of musical equipment I sincerely apologize in advance for the depth of detail you are about to encounter Having devoted countless hours culminating in decades to the creation of the GP3 I would not...

Page 3: ...D ABOUT CLASSIC AMPLIFIER SOUNDS 5 THE BIG PICTURE 6 INPUT STAGE 7 CHANNELS 8 TONE CONTROLS 9 GRAPHIC EQUALIZER 10 DYNAMICS CONTROL 11 OUTPUT STAGE MASTER VOLUME 12 GLOBAL FUNCTIONS 13 MIDI MIDI LEARN...

Page 4: ...ble from the rear panel of your GP3 to any convenient wall outlet or power strip Connect one end of a shielded guitar cable to the AMP OUT jack on the rear panel of your GP3 Plug the other end of this...

Page 5: ...t here for the purpose of demonstrating how adept the GP3 would be at recreating classic amplifier sounds We feel that this is an unproductive exercise often based on sleight of hand and the power of...

Page 6: ...arm up sequence has begun After 15 seconds the time it takes for the tube filaments to reach operating temperature a timer function in the GP3s microprocessor sends a Turn On command to the high volta...

Page 7: ...ween the guitar and the various amp and effect inputs to condition and protect the guitar signal from noise and tonal degradation These buffers are often makeshift items and are almost always detrimen...

Page 8: ...AD feature Gain Treble Middle Bass and Volume controls The LEAD and RHYTHM channels also feature a variable BOOST control to adjust the amount of gain boost available A fixed amount of boost is provid...

Page 9: ...erdrive used audience size relationship with the bartender and a host of other variables In the process the amplifier produces varying degrees of distortion harmonics overload and power amp compressio...

Page 10: ...MASTER VOLUME and DYNAMICS you will become very proficient at fine tuning the output stage to emulate the output behavior of say a 100 watt amp versus a 15 watt amp GLOBAL FUNCTIONS On the far right o...

Page 11: ...AD channel Simultaneously mutes all three channels when held down for 2 seconds WARM UP SEQUENCE OVERRIDE This function is accessed right after power up In the event that the GP3 has already been oper...

Page 12: ...create NOTE Your existing program parameters remain unaffected until you change them even if you enter MIDI LEARN mode live on the fly This means that if you are playing a live performance and you de...

Page 13: ...T 21 CLEAN BRITE FAT LOOP 22 CLEAN BRITE FAT EQ 23 CLEAN BRITE BOOST LOOP 24 CLEAN BRITE BOOST EQ 25 CLEAN BRITE LOOP EQ 26 CLEAN FAT BOOST LOOP 27 CLEAN FAT BOOST EQ 28 CLEAN FAT LOOP EQ 29 CLEAN BOO...

Page 14: ...5 RHYTHM BRITE BOOST LOOP 66 RHYTHM BRITE BOOST EQ 67 RHYTHM BRITE LOOP EQ 68 RHYTHM FAT BOOST LOOP 69 RHYTHM FAT BOOST EQ 70 RHYTHM FAT LOOP EQ 71 RHYTHM BOOST LOOP EQ 72 RHYTHM BOOST LOOP REMOTE 73...

Page 15: ...08 LEAD BRITE BOOST EQ 109 LEAD BRITE LOOP EQ 110 LEAD FAT BOOST LOOP 111 LEAD FAT BOOST EQ 112 LEAD FAT LOOP EQ 113 LEAD BOOST LOOP EQ 114 LEAD BOOST LOOP REMOTE 115 LEAD BOOST EQ REMOTE 116 LEAD BRI...

Page 16: ...are listed under each location Numbering sequence is LEFT to RIGHT looking at the FRONT of the unit V1 Valvulator unity gain buffer stage effects loop driver 12AX7WB Sovtek V2 Input Gain Stage 1 and s...

Page 17: ...dently isolated from system ground REMOTE 2 Relay controlled switching jack for remote control of external amps preamps and effects Assignable to RHYTHM or LEAD channel function and can be configured...

Page 18: ...s including but not limited to cabinets cabinet parts or knobs 3 This warranty does not apply to uncrating setup installation or the removal and reinstallation of products for repair 4 This warranty s...

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