Zvex Double Rock User Manual

TYPE: Hand Painted [HP] | MODEL: Double Rock™

Congratulations! You’re the proud owner of a hand painted Z.Vex Effects Double Rock!™

OVERVIEW:

This pedal was originally designed for J.Mascis of Dinosaur
Jr. He requested two Box of Rock™ pedals in one box with
two stomp switches. He uses that regularly on stage now,
but we did one (or two) better with the one we’re releas­ing to the public... we made it so you can adjust the sub
frequencies (like the Distortron™), and you can convert either
channel to a Super Hard-On™. In this way, you can config­ure the pedal to be two Distortrons cascaded, two Super
Hard-Ons cascaded (like a Super Duper 2-in-1™), or a Box of
Rock™ with boost, or a Super Hard-On™ (SHO) going into
a Box of Rock™. Distortion/boost heaven! Whee!!! Let’s go
over the controls:

CONTROLS:

DRIVE: Sets the amount of distortion in Distortron™ mode, and
sets the amount of boost in SHO mode. It may crackle when
turned. This is perfectly normal.

TONE: Adjust for treble content. Start around 2:00 o’clock.
This knob only does stuff in Distortron™ mode.

VOLUME: Adjust for output volume level.

DIS / BOOST Switch: Changes the circuit from a Distortron™

to Super Hard-On™ boost.

favorite distortion/boost tones. Since you can change the
first or second stomp switches to either a Distortron™ or
Super Hard-On™ (SHO), you can mix and match the two to
experience different results... SHO before the Distortron™
will give you more sustain, while after will give you more
amp volume (or drive, if you use a distorted amp sound.) Of
course, you can use the pedal the way J. Mascis intended
by going Distortron™ into Distortron™ or get Super Duper
2-in-1™ tones by cascading the SHOs. If you have other
distortion pedals, don’t leave them in the closet! Many dis­tortion pedals sound amazing into the Double Rock™. You
may discover a whole new love for your old distortion pedal
collection!

The best way to complete this pedal is to run it through a
JTM45 Marshall amplifier head/cabinet on a warm clean
setting (try strapping the channels, setting the volumes below 3,

and setting all other controls to 6 as a start point.)

BATTERY CHANGE:

If the performance of your pedal seems diminished or the
LED becomes 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.

SUB S Switch: “2-1-3” lets you choose the full “Box of Rock”
sub amount (3) or two different lower levels of subs depending
on your amp’s needs. Only works in Distortron™ mode.

OPERATION:

Plug your guitar (or any effect’s output) into the right hand
input jack. Plug the output into an amp or other effect’s
input. Rock out. The two separate stomp switches control
whether or not the two distinct circuits are engaged. You
can select whether or not the circuit is a Distortron™ or Su­per Hard-On™ by way of the “DIS / BOOST” toggle. When
in Distortron™ mode, set the subs switch so there’s just
enough low-end for your amp. Try using your rhythm pickup
with the tone control turned all the way down for a vintage
bluesy howling lead sound.

PEDAL PLACEMENT:

I recommend that you try the Double Rock™ last in your
pedal chain, just before the amp. You can set the amp for
your favorite clean tone, and set the Double Rock™ for your

SPECIFICATIONS:

Uses one 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 extraordinarily long battery
life. Current draw is approximately 2mA. A DC power jack
(standard Boss configuration with center negative) is provided
on the side of the pedal. Use a high quality 9V adaptor for
all high-gain effects!

WARRANTY:

Your hand-painted Double Rock™ has a lifetime warranty.
Please visit http://zvex.com/website/repairs.htm for any
repair questions or more information.

Enjoy!

P.O. Box 16078 | Minneapolis, MN 55416

www.zvex.com | [e-mail] | [e-mail]

Last Updated: May 2012