REVV Dynamis 7-40 User manual

Revv Owner’s Manual - 1
Owner’s Manual
the Generator 7-40

Revv Owner’s Manual - 2
INTRO
Congratulations and welcome to the Revv family! Thank you for trusting
Revv Amplification with such an important part of your musical endeavors.
Enjoy tone, durability, and ease of use designed to inspire.

Revv Owner’s Manual - 3
table of contents
1.0
1.1
2.0
2.1
2.2
2.3
2.4
2.5
3.0
3.1
3.2
3.3
3.4
4.0
4.1
4.2
4.3
4.4
5.0
5.1
5.2
5.3
5.4
5.5
6.0
6.1
6.2
6.3
6.4
6.5
7.0
7.1
7.2
7.3
7.4
8.0
intro
— safety instructions & warnings
— set up & power up
— front panel layout
— input
— channel one (clean)
— channel one (crunch)
— channel two (distortion)
— standby & power switch
— rear panel layout
— main power connection
— bias test points
— impedance & speaker jacks
— FX loop connections
— serial effects loop
— FX loop on/off
— SEND level control
— FX loop hookup
— FX loop as volume boost
— tubes & bias
— power tubes
— preamp tubes
— power tube bias
— set the bias
— bias chart
— MIDI
— OMNI mode
— MIDI channel setting
— MIDI program change
— MIDI controllable functions
— Revv Generator 40w continuous controller
commands (CC)
— foot switch
— hook up
— control mode
— preset mode
— memory reset
— specifications
warranty
— 2
— 4
— 5
— 6
— 6
— 7
— 8
— 8-9
— 10
— 11
— 11
— 12
— 13-14
— 15-16
— 17
— 17
— 18
— 19
— 19
— 20
20
— 20
— 20-21
— 21-22
— 22
— 23-24
— 24
— 25-26
— 26-27
— 27
— 28-29
— 30
— 30
— 31
— 32-33
— 33
— 34
— 35

Revv Owner’s Manual - 4
safety instructions & warnings
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 am-
plifier will serve you for many years. Please use common sense when
operating, this instrument is designed for electric guitar amplification, and
should only be used with electric guitar signals.
• Do not store or operate the amplifier in
damp/wet areas.
• Do not keep items that contain liquid
on or near 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 away from radiators
or heat producing/supplying items.
• 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 miss-
ing 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. Always make connections
to the amplifier with the power off.
• 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.
1.0

Revv Owner’s Manual - 5
set up & power up
Only keep your Revv in a dry place that keeps 6” of space between the
rear and any other objects. Tubes produce heat, and anything flammable
should be kept away.
First,make sure that the power and standby switches are in the off (down)
positions. Next, connect the AC power cord to the amplifier Mains con-
nector on the rear of the amplifier - then to an AC outlet. At this point, all
other peripherals can be connected to the amplifier as well: Foot Switch,
FX Loop, Guitar, and cable
Note: A high quality, shielded instrument cable is recommended for guitar
input as well as FX loop connections to prevent unwanted noise.
Once all your connections are made, move the power switch to the On
position and give the tubes at least one minute to warm up. Now is a great
time to begin setting all controls while we wait. We recommend setting
the master volume, channel level, 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. Now set the standby switch to the Revv (up)
position and you are ready start!
Note: Upon power up, you will notice that all LED’s light up for a couple
seconds and then only the Channel 1 LED remains lit.This is normal as the
amp does a start up sequence at power up, then arms channel one to
begin.
1.1

Revv Owner’s Manual - 6
Front Panel Layout
Input
1/4” Instrument cable input.
Active Input
The active input jack is to be used with guitars that have active pickups
& work better with lower impedance than a guitar with passive pickups.
Because active pickups don’t require high impedance & usually provide
a stronger signal out, this jack provides the proper circuit in order to keep
the tone of the amp articulate & preventing unwanted compression &
noise. If you are finding the tone weak to your personal tastes - do not
hesitate to plug an active pickup-equipped guitarinto the passive input
to experiment with new sounds. This operation is safe - & will just hit the
front end of the amp harder if you are going for that sound.
Passive Input
The passive input jack is to be used with guitars that have passive pick-
ups & require high impedance for proper signal transfer. This jack is
designed to get the strongest signal from a passive pickup to the first
tube stage.
2.0
2.1

Revv Owner’s Manual - 7
Channel One (Clean)
Selected by: 1) pushing the designated front panel momentary toggle
switch up, 2) footswitch button #1 or a footswitch preset mode setting,
3) MIDI & CC commands.
Passive treble, middle, &bass controls with a wide range. Small turns =
large tonal change!
Level (volume) controls both Clean & Crunch volume for well-balanced
operation.
Very clean (high headroom) & punchy. Takes pedals very well - or
decrease power to 7 watts for a more broken up sound with the Output
Power Switch. Channel output power is independent so you can use
this to control both tone & volume separately from the gain channel.
2.2

Revv Owner’s Manual - 8
Channel One (Crunch)
Channel Two (Distortion)
Selected by: 1) pushing the designated front panel momentary toggle
switch up (LED turns green), 2) footswitch button #1 or a footswitch
preset mode setting, 3) MIDI & CC commands.
Crunch shares its EQ with Clean, & includes a Crunch Bright switch to
both tailor the sound to your preferences & operate well with settings
you have already dialed in for clean. However, many guitarists find this to
be their favorite Channel One mode so feel free to dial it in with crunch
engaged as a primary setting & go from there.
Crunch Gain is an independent knob used only for this mode & will go
from “just barely more than clean” to quite a bit of distortion.
Selected by: 1) pushing the designated front panel momentary toggle
switch down (LED turns red), 2) footswitch button #2 or a footswitch
preset mode setting, 3) MIDI & CC commands.
2.3
2.4

Revv Owner’s Manual - 9
Gain, treble, mid, bass & level (volume) control knobs with a wide range
of operation - small adjustment = large tonal change!
Aggression has 3 levels : least saturation (green), tight saturation (blue),
& highest/fattest saturation (red). These aggression levels are highly
interactive with the gain knob & can result in everything from broken up
rock tones to metal rhythm tones & lead tones.
These aggression levels can be cycled through both by repeatedly
pressing the designated momentary toggle switch & by repeatedly
pressing the Channel #2 footswitch.
The amplifier has a midrange focus & to modify this you can either slightly
dial back the mid control or switch between the two Contour options for
a bright upper-mid focused sound (on) or a thick lower-mid focused
sound (off).
Bright & Fat extend the highs & lows respectively. I find it is best to
engage these if you prefer the overall tone either or both provide & then
set the treble & bass knobs to taste, accounting for the voicing switch
positions. Fat is also a useful tool when switching to a single-coil equipped
guitar.
As with Channel One, Channel Two has an independent 40 watt / 7 watt
Output Power Switch. 7w mode will help achieve satisfying sounds at
lower volume and/or give you the option of a tone featuring more power
amp saturation.All else being equal this will result in a more broken up old-
school sound, compared against letting the preamp take care of much of
the gain in the higher headroom 40w mode.

Revv Owner’s Manual - 10
Standby & Power Switch
The power & standby switches give the amp power from the mains, as
well as high voltage through the circuit. First turn on the power switch &
wait one minute to allow the tubes to warm up. Turn on the standby
switch to the Revv position once you are ready to play.
Note: NEVER power up the amplifier without the proper speaker load
connected!
2.5

Revv Owner’s Manual - 11
Rear Panel Layout
Main Power Connection
When plugging the amplifier into the mains A/C wall receptacle, always
make sure the amplifier power & standby switches are in the off position.
The Required voltage & fuse ratings are marked on the amplifier, verify
that they are correct before plugging in.
Main & HT Fuses
The mains fuse & HT fuse are in place to protect you & your amplifier
from overload conditions. Always replace them with the same type &
rating only! Always unplug the amplifier from the mains before replacing
the fuses. Fuse requirements are marked on the rear panel of the amplifi-
er.
3.0
3.1

Revv Owner’s Manual - 12
Bias Test Points
This amplifier is designed to allow the user to set the bias of the power
tubes without removing the chassis from the head shell.
Each pair of power tubes needs to be set according to the tubes being
used.
Power Tube Fault Fuses
The power tubes are fused in pairs. Should a power tube fail, the fuse will
blow & take the pair of power tubes out of service. This has the benefit
of protecting the amplifier, & also allows for continued playability, so as to
allow the user to finish the gig on the remaining pair. The volume & tone
will change but the show will go on.
Note: Should the amp be run with 2 power tubes removed from service
(bad or blown fuse), in order to achieve a tone more consistent with
normal 4 tube operation the amp should be run with an impedance
setting of half the speaker cabinet rating. For example, if the speaker
cabinet is 8 ohms, set the amplifier to 4 ohms, & if the speaker cabinet is
16 ohms, set the amplifier to 8 ohms.
3.2

Revv Owner’s Manual - 13
Impedance & SpeakerJacks
The amplifier must always be connected to a speaker cabinet or load
when it is powered up.This amplifier can be used with cabinets that
provide a load of 4, 8 & 16 ohms.
Because the amplifier provides 2 speaker jacks, it can also power 2 cabi-
nets directly from the amplifier, but the impedance will need to be set
correctly.
Most setups are simple, one cabinet plugged into the amp, set the
impedance to that marked on the cabinet & you’re ready to go! Howev-
er, when it comes to adding more cabinets to the rig, more care must be
taken to prevent damage. Most rigs will not utilize more than 2 cabinets
so we won’t go beyond 2 cabinets here.
3.3

Revv Owner’s Manual - 14
Some examples:
2 - 8 ohm cabinets would be run to the amplifier (one per speaker jack),
the correct impedance switch setting would be 4 ohms as they are
being run in parallel.
2 - 16 ohm cabinets would be run to the amplifier (one per speaker
jack), the correct impedance switch setting would be 8 ohms as they
are being run in parallel.
2 - 4 ohm cabinets cannot be run in parallel with this amplifier. This will
cause damage.
Note: No damage will result when running the amplifier set at a lower
impedance (Ex: 4 ohms) into a cabinet rated at a higher impedance (Ex:
8 Ohms). However the opposite will possibly cause damage to the
output transformer or other components & it is suggested that the
amplifier never be run into a lower load than what the amplifier is set to
when hooking up speakers in different configurations.

Revv Owner’s Manual - 15
FX Loop Connections
The FX loop connections are to be hooked up to external pedals or
effects units.The Send level will supply the signal required & needs to
be set accordingly with the send level control.
MIDI Connections
The MIDI IN connection is for external equipment connections when
your rig necessitates control of your Revv with third party gear.
The MIDI through jack allows for connection of additional MIDI devices
in your signal chain in addition to your Revv.
3.4

Revv Owner’s Manual - 16
Foot Switch Connection
This connection both powers your footswitch & allows it to control your
Revv.
Should the provided footswitch cable fail, any Ethernet cable can be
used. However, this cable sends data between the amplifier & footswitch
& if a lower quality cable is used incorrect switching or erratic behavior
may occur. A high quality cable is recommended, which can be provided
by Revv should you need a replacement.
Speaker Cab Lighting
Revv speaker cabinets each have an illuminated up logo which is pow-
ered from the cab lighting jack on Revv amplifiers. This is a 4 pin DIN jack
that should be connected to the 4 pin DIN jack of a Revv speaker cabinet
only. The logo will change colors in conjunction with the channel switch-
ing of your head.
Note: This jack can only be used with Revv speaker cabinets.

Revv Owner’s Manual - 17
Serial Effects Loop
This effects loop is foot switchable, preset recallable, & MIDI + CC con-
trollable. It has also been given an On & Off control ability to have the
send level control & FX Loop jacks removed from the signal path entirely
- even though it was designed from the start to be as transparent as pos-
sible.Tube driven with the send output buffered at 900 ohms.
If you are not using the effects loop - its send level control can be used as
a volume boost with the 4-button Revv foot controller.
FX Loop On/Off
The amplifier’s footswitch (button #3 in control mode) is used to switch
the effects loop in & out of the signal path to make it easier to apply &
remove effects to the guitar signal on the fly.
If you do not use the footswitch, the FX loops will always default to an on
state.If the footswitch is plugged in -the FX loop defaults to off unless acti-
vated via the footswitch.
Midi will always be able to control FX loop state as well.
4.0
4.1

Revv Owner’s Manual - 18
SEND Level Control
This effects loop has a Send Level control to make sure your effects
volume is optimal. Always make sure to check this knob if you are experi-
encing any overly loud, or quiet effects - or level issues of any kind.
If your effects start clipping - you are driving the loop too hard with this
control.
Note: The level controls on each channel will also affect the send level
being sent from the effects loop - when one is set higher than the rest
you will find your signal changes when using that channel. Be sure to test
each channel & the send level coming from the effects loop. For this
reason it is normally preferable to set the level of your channels first then
adjust your effects loop send level.
4.2

Revv Owner’s Manual - 19
SEND Level Control
This effects loop has a Send Level control to make sure your effects
volume is optimal. Always make sure to check this knob if you are experi-
encing any overly loud, or quiet effects - or level issues of any kind.
If your effects start clipping - you are driving the loop too hard with this
control.
Note: The level controls on each channel will also affect the send level
being sent from the effects loop - when one is set higher than the rest
you will find your signal changes when using that channel. Be sure to test
each channel & the send level coming from the effects loop. For this
reason it is normally preferable to set the level of your channels first then
adjust your effects loop send level.
FX Loop Hook up
First, you need to hook up your effects units to the amplifier. The send
jack will need to be connected to the input of the first (oronly) effects unit
in your chain. The out jack on the effects unit (or last pedal in your chain)
will then connect back to the return jack on the amp.
Adjust each channel’s level control to your liking & set your send level
control as above.
Note: If you hear no sound - your effects loop level control knob is proba-
bly set at zero, or your FX loop is disabled! Refer to the above on/off sec-
tion.
FX Loop As Volume Boost
If you are not using any effects in your FX loop - use the Send Level knob
to dial in a volume higher than your normal volume, & activate this boost
by pressing the FX Loop button (#3) on the footswitch while in control
mode.
4.3
4.4

Revv Owner’s Manual - 20
Tubes & Bias
Power Tubes
Our lower wattage amplifiers are designed with 6V6 tubes for the best
tonal & feel performance at a wide range of volumes.REVV-brand 6V6GT
tubes are always recommended when replacement is required.
Note: While we designed the amplifier to be easy to maintain, we advise
that all tubes be set up by a qualified service technician to prevent
damage to the amp from improper bias settings.
Preamp Tubes
This amplifier uses 12AX7 preamp tubes in tube positions V1 V2 V3,& V5.
A 12AT7 preamp tube is used in the V4 position for the FX Loop & only a
12AT7 tube should be used in this socket.
Preamp tubes do not need to be biased & usually have a long life unlike
power tubes, but it is possible for a preamp tube to become faulty at any
stage of its rated lifespan.
Power Tube Bias
The power tubes can be biased without taking the chassis out of the
wood head shell.You will need a voltmeter or digital multimeter set to the
lowest DC voltage range. (Make sure you refer to the meter’s user
manual).
Note: Use tubes that are matched! A matched quad is best but matched
pairs will also suffice.
5.0
5.1
5.2
5.3