REVV D25 User manual

Owner’s Manual

We are a small company out of Winnipeg, Canada. Years ago, I set out to make an amplifier that
delivers the sound guitarists need that isn't in other amps, one that is extremely versatile in the tone
and application. Luckily, when other musicians played my early prototypes, they agreed! The tone was
fresh, unique and they all needed an amp for themselves! I quickly built a team of people as passionate
about guitar as I am, and Revv was born. To be honest, it grew bigger and faster than I had ever
hoped...
It has since been a long hard journey being a small business filled with long nights and people who
didn’t believe in us. After endless tweaking and customer feedback, I’m at a place where I know we are
building the best-sounding, durable, and most versatile amps that we can. It’s incredible hearing the
kind words of amazing guitar players using Revv around the world, and we are just getting started.
Thank you for believing in us and making this possible. Nothing makes this journey more fulfilling than
seeing musicians using what we’ve built to make music. That is what this is all about, making music.
Because we are still a small business, every little bit helps, and we would appreciate you sharing
pictures of your Revv gear on social media, using it to perform your music, or simply telling a friend
about it. Thank you for your support and for making music.
Dan Trudeau
President & Designer

REVV | D25
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TABLE OF
CONTENTS
P4 Warranty & Registration
P5 Safety Instructions & Warnings
P6 Set up & Power up
FRONT PANEL LAYOUT P7/P8
1Input
2Gain Control
33 Band EQ
4Volume Control
5Reverb Control
6Gain Boost Switch
7Pre/Post Switch
8Wattage Control Switch
9Speaker Load Switch
10 Headphone Jack
11 Output Level LED
12 Virtual Cabinet Control
13 Standby & Power Switch
BACK PANEL P9/P10
14 Main Power Connection
15 HT Fuses
16 Footswitch Jack
17 XLR Output and Ground Lift
17.1 XLR Output Connectors
18 Bias Test Points
19 USB-B Jack
20 MIDI In
21 Cabinet Lighting Jack
22 FX Loop Send and Return Jacks
23 External Cabinet Jack
24 Speaker Jack
25 Impedance Switch
TUBES AND BIAS P11
26 Power Tubes
27 Preamp Tubes
28 Power Tube Bias
29 Setting The Bias
30 Bias Chart
SPEAKER INFORMATION P12
31 Celestion Vintage 30
32 Vintage 30 Speaker Specs
33 Celestion G12H-75 Creamback
34 G12H-75 Creamback Specs
MIDI P13/P14
35 Setup
36 Program Change
37 Control Change
38 MIDI CC Commands
39 Simulation & IR Modes
TORPEDO REMOTE/LOAD P15
40 Reactive Load
41 Balanced Direct XLR-Out
42 Torpedo Remote
FOOT CONTROLLER P16
43 Control Mode
COMPLIANCE P16
44 USA Compliance
45 Canada Compliance

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This Revv Amplification Inc. product is warranted against manufacturing defects in material and workmanship for
a period of two (2) years from the date of purchase to the original owner. Tubes and fuses will be warranted for
ninety (90) days from the date of purchase of the product to the original owner and all input jacks, connectors,
and control switches will be warrantied for one (1) year. The warranty starts on the date of purchase by the original
owner. This warranty is subject to the obligations and exclusions listed below.
OBLIGATIONS:
This warranty will be honored with original proof of purchase to the original owner only. Warranty work must be
authorized by Revv Amplification Inc. in advance. All freight and duty (If applicable) are to be prepaid to and from
Revv Amplification Inc. of all products that require and have been approved for warranty work. Revv Amplification
Inc. Is not liable for any freight and or duty (if applicable) charges.
EXCLUSIONS:
A product that has been altered or is missing serial numbers will not be covered. Items that were damaged while
being shipped to or from Revv Amplification Inc. will not be covered by this warranty. This warranty shall not apply
to repair or replacements necessitated by any cause beyond the control of Revv Amplification Inc. including,
but not limited to, any malfunction, defects, or failure caused by or resulting from unauthorized service or parts,
damaged or broken tubes, improper maintenance, incorrect line voltages, liquid damages, modification or repair
by the user, misuse, abuse, accident, neglect, or fire. Revv Amplification Inc. does not authorize any party to
assume for it any other obligation or liability. In no event shall Revv Amplification Inc. be liable for any damages
arising from the use of this product, or for any delay in the performance of this warranty due to causes beyond
our control.
REGISTRATION:
Please fill out the form on the website below within the next 30 days to claim your warranty. Revv Amplification
will repair or replace; defective workmanship or materials at its discretion on all new Revv Amplification products
purchased directly or through authorized dealers for one year from the day of purchase. This warranty does not
cover shipping costs, product appearance, or damages caused by accident, abuse, alteration, or misuse. No other
warranty is expressed or implied. www.revvamplification/Warranty
WARRANTY &
REGISTRATION

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Please read, understand and follow all safety instructions in this manual, as well as those on the rear panel of the
amplifier. These instructions and warnings must be followed for your safety, and also to ensure that the amplifier will
serve you for many years. Please use common sense when operating, this is a professional instrument designed
for electric guitar amplification, and should only be used with electric guitar signals.
•Do not operate or store this amplifier in a damp or
wet environment.
•Do not keep items that contain liquid of any kind
near or on the amplifier.
•Allow for 4-6 inches of space around the unit
when operating. This unit produces heat and
should be kept away from flammable items/
objects.
•Do not expose the amplifier to high temperature.
Keep the amplifier away from radiators or any
other items or equipment that supplies or
produces heat.
•Be sure to connect to an AC power supply that
meets the power supply specifications listed on
the rear of the unit.
•Do not use an AC power cord that is damaged,
has been pinched or is missing prongs.
•This amplifier must be properly grounded to local
standards when being operated. Do not use 2
pole extension or power cords to supply power to
this amplifier.
•Remove the AC power cord from the amplifier
when changing tubes, fuses or when moving the
amplifier. Always replace fuses with the correct
type and rating. Always remove AC power cord
when removing chassis.
•The AC power cord should be removed from the
outlet when left unused for long periods or when
there is risk of electrical storms.
•No user serviceable parts inside, all service should
be done by qualified personnel only.
•Always make certain the proper load is connected
to the amplifier before operating (See Section
“Two-notes Torpedo-embedded”). Always make
connections to the amplifier with the power o.
•Your amplifier is designed to produce high
volume/sound pressure levels. Long term
exposure to these levels can damage your
hearing. Please use hearing protection when
exposed to these levels for extended periods to
prevent loss of hearing or hearing damage.
•Keep away from children.
SAFETY &
WARNINGS

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SETUP &
POWER UP
It is very important to place the amplifier in a dry location
that provides 4-6” of space between the rear of the
amplifier and anything in the area that is designated for
the amplifier. Tubes produce heat; anything flammable
should be kept away from amplifier tubes. Please
check the tubes, and make sure they are all seated in
their sockets. Look good? We are ready to move on!
First, ensure the power and standby switches are in
the o (down) positions. On the back of the amplifier,
confirm your D25 is safely connected to a load by
connecting either the D25 internal speaker cable to
the Speaker Jack or an external speaker cabinet to
the Ext Cabinet Jack and selecting the correct im-
pedance of the external speaker via the push button.
Alternatively, you can choose the internal load on the
Front Panel push button (In=internal load); for more
information, refer to Section “Two-notes Torpedo-Em-
bedded” Page 14. Once the speaker load is secured,
connect the AC power cord to the amplifier Mains
connector on the rear of the amplifier and then to an
AC outlet. Finally, connect any remaining peripherals:
Note: Use a high-quality shielded instrument cable
for guitar input and FX loop connections to prevent
unwanted noise. Remember that instrument cables can
sometimes impact the guitar’s signal quality, and trying
varying cable lengths can help achieve the desired
sound.
Once all speaker load and peripheral connections are
secured, move the power switch to the On position
and give the tubes at least one minute to warm up.
Now it is time to begin setting all controls while we
wait. We recommend setting the master volume
and gain controls to the lowest setting or zero (fully
counterclockwise) and all treble, mid, and bass controls
to the 12 o’clock positions to begin. Set the standby
switch to the ON (up) position, and you are ready to
start exploring!
Note: Upon power-up, you may notice that the LED
clipping indicator illuminates solid red. This is the
startup sequence of the amplifier.
•FX Loop Connections
•Guitar, Pedalboard, &
Shielded Cable
•MIDI
•XLR
•USB
•Revv Cabinet Lighting
•Headphones
•Revv Foot Controller

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FRONT PANEL
INPUT 1
1⁄4” Instrument cable input.
GAIN CONTROL 2
The Gain Control will add body and drive to your signal.
D25 is capable of a wide variety of tones from crystal
clean to quite overdriven.
Note: Experiment with your guitar’s controls, pick attack,
and pedals to find your favorite settings for dierent
applications. This control is quite interactive with the
EQ, Volume Control, and Wattage Mode.
3 BAND EQ 3
Passive treble, middle, & bass controls with a wide
range. Small turns equal large tonal changes.
VOLUME CONTROL 4
The Volume Control drives the power amplifier & sets
overall output level. This also controls the level of signal
being sent to the FX Loop and Two-notes Torpedo-
embedded (when the Pre/Post control is set to Post).
REVERB CONTROL 5
The Reverb control increases the intensity of the
D25’s on-board digital Reverb. Turn the knob fully
counterclockwise to disable the eect. The Reverb can
also be turned on and o using the Revv footswitch.
GAIN BOOST SWITCH 6
The Gain Boost push button (in) engages a more
overdriven sound. Do not let its name deceive you!
While you can certainly use Gain Boost on and o as
“channels” to achieve dierent gain levels on the fly
with the included Revv Foot Switch, the Gain Boost also
changes the overall voicing of the amp. As such, we
suggest choosing your favorite sounding Gain Boost
position and dialing your overall tone from there
because a wide variety of clean & overdriven tones are
available in both modes.
PRE/POST SWITCH 7
Because the embedded Two-notes technology can
provide virtual power amp simulation, you can now
choose dierent virtual power tube types, such as
EL34s or 6L6s, for your power amp sound when

REVV | D25
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REVV | D25
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using the Two-notes XLR out on the amplifier’s rear
only. The latching Pre/Post push button will feed the
embedded Two-notes Torpedo either an input signal
from the preamp (in) or the power amp (out). “Pre” is
recommended not to “stack” two power amps in series
when using this feature. “Post” is always recommended
for optimal tone and feel in other instances.
Note: While you should not feel obligated to use this, it
can be a powerful tool for advanced users looking to
get a radically dierent sound out of their D25 when
recording or sending your signal direct to front of house
live, for example.
WATTAGE CONTROL SWITCH 8
This latching push button switch allows you to set the
amplifier’s power output to either 25 watts (in) or 5
watts (out). 5 Watts has considerably less headroom
and, as such, can be used to reduce maximum output
volume but also drive the power section harder for a
more broken-up sound.
SPEAKER LOAD SWITCH 9
The Speaker Load Switch controls the D25’s speaker
load (out) or its internal reactive load (in). Select internal
load when you wish to play silently.
Operates as above (Channel 3). As noted there, many
players prefer to use 4 for lead, but it is totally up to you
as each channel has its own character. Experimentation
is key!
HEADPHONE JACK 10
The Headphone Jack output lets you use the amplifier
with any selected virtual cabinet settings through your
headphones directly from the Two-notes Torpedo-
embedded. Use headphones & engage the internal
reactive load to inspire silent playing. Please note for
your safety that both the Volume Control & the following
Output Level Control both aect headphone volume.
Note: The power delivered by the headphone output is
high enough to remain ecient even when using high-
impedance headphones. Therefore, getting very high
audio levels with that output is possible. We strongly
advise against the use of headphones with high audio
levels. The improper use of headphones can lead to
irreversible damage to your hearing.
OUTPUT LEVEL & CLIP LED 11
The Output Level knob controls the master volume
of the Two-notes Torpedo-embedded, which uses
the direct-XLR-out on the rear of the amplifier and
the headphone jack. If you see the Clip Warning LED
illuminate, you must turn the Output Level down to
avoid undesirable, harsh digital clipping.
VIRTUAL CABINET CONTROL 12
This 6-position control will switch through the first
six presets of the Two-notes DynIR library saved to
your D25. Included on your amplifier by default are 6
Revv DynIR presets created by Shawn Tubbs. You can
change the DynIR’s and all of their options by using
Two-notes Remote software, connected via USB on the
rear of the amplifier. Up to 128 presets can be saved
via MIDI. (See Section “Two-notes Torpedo-embedded)
Page 14 for more information)
STANDBY & POWER SWITCH 13
First, turn on the power switch and wait a minute for
the tubes to warm up. Turn the standby switch to the on
position once you are ready to play.
Note: NEVER power up the amplifier without the proper
speaker load connected or the reactive load switch
engage.

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BACK PANEL
MAIN POWER CONNECTION 14
When plugging the amplifier into the mains A/C wall
receptacle, always make sure the amplifier power and
standby switches are in the o position. The Required
voltage and fuse ratings are marked on the amplifier
underneath the mains input. Verify they are correct for
your electrical mains supply before plugging it in.
The mains input is a 2-part assembly on the D25; not
only will it allow you to plug the amplifier power cable
into it, but the main fuse is also a part of the assembly.
Should the fuse ever blow on the amplifier, you will also
find the fuse in this assembly. A spare fuse compartment
is built-in to keep a spare fuse with you. The fuse type
is marked on the rear of the amplifier.
HT FUSES 15
The HT fuse is in place to protect you and the amplifier
from overload conditions. Always replace them with
the same type and rating only! Always unplug the
amplifier from the mains before replacing the fuses.
Fuse requirements are marked on the rear panel of the
amplifier.
FOOT SWITCH JACK 16
This connection powers your foot switch and allows
it to control the D25. Should the provided foot switch
cable fail, any 5 PIN DIN cable can be used. For use
only with the included Revv D25 foot switch.
Note: This cable sends important data between the
amplifier and the foot switch. If a lesser quality 5 PIN
DIN cable is used, incorrect or erratic behavior could
occur. A high-quality cable is recommended, which can
be purchased on the Revv website should you need a
replacement.
XLR OUTPUT & GROUND LIFT 17
The balanced output XLR jack is a direct output from
Two-notes Torpedo-embedded. Connecting this output
to the front of house or an audio interface lets you
capture D25’s tone without a microphone! You may use
this XLR output simultaneously with D25’s speaker or
alone for silent performance. (See Section “Two-notes
Torpedo-embedded.” Page 14 for more information)
The ground lift switch will defeat the ground on
D25 should you encounter ground noise from other
equipment you have connected.
120VAC - FUSE - T1.25A

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XLR OUTPUT CONNECTORS 1 7.1
In the rear of the amplifier is a direct output from the
embedded Two-notes Torpedo and not direct from the
tube amplifier output itself. The purpose of this output
is to be used with audio interfaces to exclude the use
of an actual speaker cabinet, using virtual cabinets
instead.
Note: The reverb or other eects that the Two-notes
Torpedo provides will only be available through the
output at the headphone or XLR jack and not a real
cabinet. The speaker output will always behave
normally. As an added bonus, some users will find this
useful for “wet/dry” setups in which they send a signal
that utilizes reverb to FOH (front of house), while playing
through a dry speaker.
The Ground Lift switch should be set to ground (pushed
in) for best results. However, if this produces a buzz or
hum because of ground loops between the amplifier
and the audio interface, press the ground lift switch to
eliminate noise.
Note: The level control under the headphone jack
controls your output level/volume to the XLR outputs.
The clip LED will illuminate if the signal is set too high.
BIAS TEST POINTS 18
The red and black test jacks on the amplifier allow
checking and setting the bias of the 6V6 power tubes
with a multimeter. (See Section “Tubes & Bias” Page 11
for more information)
USB-B JACK 19
The USB Jack will connect your computer via the
provided USB cable to your D25 to use Two-notes
Remote software, which can be used for deep editing
of presets, creating new ones from scratch, or loading
third-party Impulse Responses!
MIDI IN 20
The MIDI In jack is used exclusively with the D25’s
Two-notes Torpedo-embedded functionality.
Note: The main purpose of this is not only to save more
than six presets but also to allow live on-the-fly changes
of the virtual cabinet setting. (See Section “MIDI” Page
12 for more information)
CABINET LIGHTING JACK 21
The cabinet lighting jack on the rear of the amplifier
is used to connect the D25 to external Revv speaker
cabinets for paired LED lighting operation.
FX LOOP SEND & RETURN JACKS 22
The D25 features a high-quality buered FX loop. The
send and return jacks connect to any pedals or eect
units you may want to use with your amplifier. The FX
loop send must be connected to the input jack on your
eects unit. The output jack on the eects unit will then
connect back to the FX loop return jack on the amp.
Your eect is now part of the amp’s signal chain after
the preamp. Verify that your levels are set accordingly
on the eect so you have a strong signal sent to the
D25’s loop, then adjust the Volume Control on the D25
to taste.
EXTERNAL CABINET JACK 23
The Ext Cabinet Jack can be used to optionally connect
your D25 to an external cabinet..
SPEAKER JACK 24
This connects the D25 to its combo speaker via the
included internal speaker cable. This should generally
be left connected.
IMPEDANCE SWITCH 25
Selects between 4 & 8 ohm impedance. This should be
set to 4 ohms for normal operation with D25’s combo
speaker