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ZVEX Effects Vexter Box of Rock Distortion Guitar Pedal
Estimated Delivery:Apr 07 - Apr 14
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This Vexter Series Box of Rock features UV printed graphics to commemorate our 25th Anniversary. The parts inside Vexters are identical to the hand painted pedals.
This Box of Rock™ simulates Zachary’s favorite amp turned up all the way, a 1966 Marshall® JTM45. The tone control adjusts brightness and there’s a high-headroom low-noise boost.
Pedal Dimensions (LxWxH): 4.70" x 2.38" x 1.82"
The Box of Rock™ is ZVEX Effect’s first “distortion” pedal, highly specialized to simulate the “everything on 10” sound of a classic Marshall® JTM45 non-master-volume amplifier. You may use the Box of Rock™ effectively with many differ- ent amplifiers. Once you’ve set your maximum needed drive on the pedal, use your guitar’s volume control to adjust for the exact amount of distortion you need, all the way down to very clean and clear with most drive settings. You will notice the words “distortron engine” on the Vexter version of this pedal (no, that’s not a misprint) on the pedal. This is what I named my distortion circuit... call me crazy.
The Box of Rock™ also contains an extremely high-head- room, unity-to-50X gain booster with nominal input imped- ance and low hiss. It is very similar to the SHO boost cir- cuit, with refinements to make it sound more like a standard amp input and less glassy. The boost channel can be used alone or in conjunction with the “distortron engine” channel. The boost channel follows the distortion channel so that the distortion is able to hit your amp harder (at a higher volume) when both switches are engaged, for boosting solos and what-not. Look out when boosting what-not. 8')Controls
Boost: Sets the boost level, which is engaged with the left stomp switch. [Start around 11:00 o’clock]. The Drive and Boost controls are based on my original Super Hard On™ gain control, so they may crackle when turned. This is perfectly normal.
Volume:Adjust for distortron engine volume level. [Start around 9:00 o’clock].
Tone:Adjust for treble content. [Start around 2:00 o’clock].
Drive: Sets the amount of distortion. [Start around 1:00 o’clock]
OPERATION: Plug your guitar (or any effect’s output) into the right hand in- put jack. Plug the output into an amp or other effect’s input. Rock out. Careful with the Boost setting when using a high- powered amp with lots of headroom... you may be shocked at how loud it can get! The best way to complete this pedal is to run it through a tube amplifier on a warm clean setting (try strapping the chan- nels, setting the volumes below 3, and setting all other controls to 6 as a start point), which has the proper voicing to reveal the “rock” in the Box of Rock™.
BATTERY CHANGE: If the performance of your pedal seems diminished or the LEDs become very dim, it’s time to change your battery. Remove the four screws on the bottom of the pedal and carefully remove and replace the old battery, putting it back exactly in the center of the pedal on edge so that it is gripped tightly by the lid when it is screwed back in place.
SPECIFICATIONS: Uses 1 9V battery (preferably alkaline, but the unit is shipped with a carbon-zinc battery). The low current operation of this pedal’s circuit will give you a long battery life. Current draw is ap- proximately 3mA. A DC power jack (standard Boss configura- tion with center negative) is provided on the side of the pedal. Use a high-quality 9V adaptor for all high-gain effects!
WARRANTY & SERVICE: Your Vexter Box of Rock™ is warranted for 1 year from date of purchase, or 2 years if you send in your warranty card. Please visit for any repair questions or more information.