Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Vox Valvetronix VT20+
Summary of Contents for Vox Valvetronix VT20+
-
Page 2: Important Safety Instructions
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. -
Page 3: Table Of Contents
Checking the original values saved in a program ... 16 Restoring the factory settings ... 16 Using the tuner ... 18 Using a foot switch (VOX VFS5)... 19 Foot switch operations in Channel Select mode ... 19 Foot switch operations in Preset or Manual modes ... 19 Signal path ... -
Page 4: Introduction
The physical positions of the actual knobs will be reflected by the sound. • An optional VOX VFS5 foot switch (sold separately) can be connected, allow- ing you to switch programs or turn effects on/off with your feet. -
Page 5: Quick Start
This manual contains information that will help you take full advantage of your Valvetronix amp, so be sure to read the rest of it after you’ve read the Quick Start section. HINT: Illustrations of the top panel and rear panel are provided in “Top and rear panels”... -
Page 6: Switching Between The User Programs
(a total of thirty-three). Press the AMP switch to change banks. Each time you press this, the AMP LED will switch to green, orange, or red, and you’ll switch to amp banks STD, SPL, and CST. Each of the thirty-three amp models has three preset programs (a total of ninety-nine programs). -
Page 7: Top And Rear Panels
PRESET switch for more than one second to engage Manual mode. In Preset mode you can use the AMP switch/selector to select typical sounds (preset programs) for each amp model. The PRESET LED will be lit green (basic), orange (effect), or red (song) when you’re in Preset mode. -
Page 8: Amp Section
MASTER volume This adjusts the volume that is output from the pre-amp to the Valve Reactor power amp. This setting will change the amount of the Valve Reactor’s distor- tion. -
Page 9: Pedal Section
TUNER (BYPASS) switch and LED Pressing the TUNER (BYPASS) switch will turn all effects off (bypass), and engage the tuner function. If you want to tune your instrument with the amp output muted, press the TUNER (BYPASS) switch for one second or longer. -
Page 10: Reverb Section
If you turn the control all the way to the left, the reverb effect will turn off. 8. POWER LEVEL control This adjusts the output wattage of the power amp. VT20+: 0W–30W VT40+: 0W–60W VT80+: 0W–120W VT120+: 0W–150W... -
Page 11: Rear Panel
This is where you connect the included power cord. 3. FOOT SW (foot switch) jack You can connect an optional foot switch (VOX VFS5) here. For more information on using the foot switch, refer to “Using the foot switch (VOX VFS5)” (p. 19). -
Page 12: About The Three Operating Modes
Each program will automatically switch the settings for GAIN, VOLUME, TREBLE, MIDDLE, BASS, and effects. For details on the hit songs that are programmed for each amp model, refer to the table at end of this owner’s manual. -
Page 13: Channel Select Mode (Recalling User Programs)
HINT: If you connect the optional foot switch (VOX VFX5) to the rear panel, you’ll be able to switch banks/channels using your foot. For... -
Page 14: Creating And Saving Sounds
LEDs will be lit up). If you want to use an effect, you’ll add it last. Use the AMP switch/selector to select the amp that you want to use. HINT: For details on the amp models, refer to “Amp models” (p. 22). -
Page 15: Adjusting The Noise Reduction
DELAY LEVEL: DELAY TIME: DELAY FEEDBACK: Turn the DEPTH knob while holding down the TAP HINT: For details on the effect types, refer to “About the amp models and effect types” (p. 22). Adjusting the noise reduction Here’s how to adjust the way that noise is suppressed. -
Page 16: Checking The Original Values Saved In A Program
For two seconds or longer, hold down the CHANNEL switch of the channel in which you want to save the sound. The program will be saved in that channel, and that bank and channel will be selected. NOTE: The program that was previously in that location will be overwrit- ten;... - Page 17 While holding down the CH1 and CH4 switches, turn on the power. When the BANK and CHANNEL LEDs start blinking, release the two switches you had been holding down. HINT: If you decide to cancel initialization at this point, press the TUNER (BYPASS) switch.
-
Page 18: Using The Tuner
Press the TUNER (BYPASS) switch. All effects will be bypassed and the tuner function will be turned on. HINT: If you want to tune your guitar with the amp output muted, hold down the TUNER (BYPASS) switch for one second or longer. When the amp is muted, the TUNER (BYPASS) LEDs will blink. -
Page 19: Using A Foot Switch (Vox Vfs5)
Using a foot switch (VOX VFS5) If you connect an optional foot switch (VOX VFS5: sold separately) to the rear panel FOOT SW jack, you’ll be able to switch banks/channels and turn effect bypass on/off using your foot. NOTE: You must connect or disconnect the foot switch while the power is off. - Page 20 Effect on/off (CH1, 2, 4 switches) In Preset or Manual mode, you can press the VFS5’s CH1, 2 or CH4 switches to turn PEDAL, MOD/DELAY, and REVERB effects on/off respectively. NOTE: If the effect is turned off because you used the VALUE, DEPTH, or REVERB knob, the CHANNEL switches will have no effect.
-
Page 21: Signal Path
This VariAmp power circuit is completely transparent – i.e., it does not modify the signal – so the output tone will be the pure sound of a tube amp. The wide dynamic range seen in a conventional tube amp is also maintained. This dynamic range is a characteristic that is difficult to obtain from a solid-state amp;... -
Page 22: About The Amp Models And Effect Types
SPL (Special) This models the clean channel of a Japanese-made amp with 2 x 12" speakers that went on sale in 1975. It is known for its clean full-range sound and its built-in stereo chorus, and is used on stages and in studios around the world. - Page 23 This models a beautiful 30W boutique amp head renowned for its peerless quality and true point-to-point wiring. Based on a concept similar to that of the VOX AC30, this amp is known for its rich overtones, sparkling clean tone, and great-sounding overdrive.
- Page 24 SPL (Special) Designed after our VOX Hand-wired Heritage AC30H2 this model provides the sparkle that is synonymous with the pairing of a classic VOX amplifier and the famed Celestion Alnico Blue. CST (Custom) This models the AC30BM Brian May signature model which faithfully repro- duces every nuance of the legendary original AC30 from the 1950’s.
- Page 25 STD (Standard) This models a 100W boutique amp head manufactured in North Hollywood. This amp can be switched between power tube class AB or class A modes; the class AB mode used on the VT20+/VT40+/VT80+/VT120+ produces rich overtones and features a highly musical response.
-
Page 26: Pedal Effects
Pedal effects The VT20+/VT40+/VT80+/VT120+ provides eleven of the most popular types of pedal effect. You can use the VALUE knob to adjust the major parameters. NOTE: In order to edit the pedal effect parameter settings, effect bypass must be off (the BYPASS LED must be dark). If bypass is on (BYPASS LED lit), turning the VALUE knob will adjust the noise reduction sensitivity instead of an effect parameter. - Page 27 (dry) sound. Knob Parameter VALUE LEVEL 6. TREBLE BOOST This models the treble booster built into the VOX VBM-1, which was designed for use with the VOX AC30. It adds “crunch” to overdrive sound. Knob Parameter VALUE GAIN 7.
-
Page 28: Modulation And Delay Effects
Modulation and delay effects The VT20+/VT40+/VT80+/VT120+ provides eleven types of modulation effects, delays and other effects. The SPEED parameter of modulation effects and the TIME parameter of delay effects can be easily adjusted by pressing the TAP switch twice. HINT: To set a precise speed or time that matches the tempo of a song, press the TAP switch several times in rhythm with the song. - Page 29 This models a popular analog phaser in a banana-colored box. Knob/Switch Parameter DEPTH RESONANCE Adjusts the amount of resonance. SPEED TAP+DEPTH SPEED 5. TWIN TREM This models the acclaimed tremolo circuit built into a US-made combo amp. Knob/Switch Parameter DEPTH DEPTH SPEED TAP+DEPTH SPEED 6. G4 ROTARY This models a rotary speaker.
- Page 30 8. FILTRON This is an envelope-controlled filter (wah) that opens or closes a filter based on input from a guitar. Knob/Switch Parameter DEPTH TAP+DEPTH RESONANCE Adjusts the amount of resonance. 9. TAPE ECHO This models an acclaimed analog tape echo. Originally, echo was created by a tape head, and the delay time was specified by changing the speed of the motor.
-
Page 31: Reverb Effects
Reverb effects Three types of reverb are provided. Depending on the position of the REVERB knob, this selects the reverb type (ROOM, SPRING, or HALL) or adjusts the mix amount of the reverb sound. NOTE: To turn the reverb effect off, rotate the REVERB knob all the way to the left. -
Page 32: Troubleshooting
• Check the settings of the GAIN, VOLUME, TREBLE, MIDDLE, and BASS controls. For some amp models, there may be no sound from the amp if the TREBLE, MIDDLE, and BASS controls are turned down, just as for the cir- cuitry of the original amp. - Page 33 • Could the VALUE, DEPTH, or REVERB knob be set to OFF or the minimum value? Adjust the knobs. • Could the effect be turned off via foot switch (VOX VFS5) operation? Press one of the VFS5’s CH switches, or rotate the top panel VALUE, DEPTH, or REVERB knob to turn the effect on.
-
Page 34: Specifications
60W RMS @ 8 ohms maximum 120W RMS @ 4 ohms maximum 150W RMS @ 4 ohms VOX original (8 inches 4 ohms) x1 VOX original (10 inches 8 ohms) x1 VOX original (12 inches 4 ohms) x1 VOX original (12 inches 8 ohms) x2... -
Page 35: Song Preset Program
Song preset program Amp Model Name (GREEN) 01 CLEAN 02 CALI CLEAN 03 US BLUES 04 US 2x12 05 VOX AC15 06 VOX AC30 07 UK ROCK 08 UK METAL 09 US HIGH GAIN 10 US METAL 11 BOUTIQUE METAL... -
Page 36: Program Sheet
Program sheet When you come up with a sound you like, you can use this sheet to make a note of your settings. We suggest that you make photocopies of this program sheet, and make your notes on the photocopies. Remember to note the NR and SPEED settings. - Page 37 PROGRAM NAME NOTE: PROGRAM NAME NOTE: PROGRAM NAME NOTE:...
- Page 38 PROGRAM NAME NOTE: PROGRAM NAME NOTE: PROGRAM NAME NOTE:...
- Page 39 PROGRAM NAME NOTE: PROGRAM NAME NOTE: PROGRAM NAME NOTE:...
- Page 40 IMPORTANT NOTICE TO CONSUMERS This product has been manufactured according to strict specifications and voltage requirements that are applicable in the country in which it is intended that this product should be used. If you have purchased this product via the internet, through mail order, and/or via a telephone sale, you must verify that this product is intended to be used in the country in which you reside.