9PAGE
While most pedal-type effects will work in the Loop, it is always best to connect overdrive, distortion, boost, compression and
wah or envelope filter effects between the instrument and the INPUT of the amplifier. These effects are designed to alter the
sound of the instrument before it is amplified, and you will get better results not using the Loop for these applications.
EXT REVERB
This ¼” jack allows control of the REVERB (on/off) remotely from a single tip-to-ground on/off footswitch.
The logic used in this jack is standard “tip-to-ground” latching (not momentary) logic that is common among most manufactur-
ers that make control Footswitches. Use non-shielded (speaker) cable as shielded cable is not required for this
function. You can obtain both tip-to-ground on/off footswitches and non-shielded cables from your local Mesa
Dealer or from us directly.
REVERB (Channel Specific)
These two knobs provide individual adjustment of the REVERB for each Channel. Dial in the
desired amount of the gorgeous tube REVERB for each channel with its corresponding Control.
NOTE: Extremely high settings of the REVERB can cause howling or oscillations when combined
with very high GAIN and/or MASTER settings. Avoid using your amplifier with maximum settings of
GAIN, MASTER and REVERB at the same time whenever possible.
SPEAKERS
One 8 Ohm and two 4 Ohm jacks are provided for speaker interfacing. MESA/Boogie cabinets are built wired to
8 Ohms unless custom ordered or modified by an outside party (i.e. a previously owned cabinet). One
8 Ohm cabinet should be connected to the 8 Ohm output. When using two 8 Ohm (MESA) cabinets,
connect each cabinet to a 4 Ohm output. This scheme provides a proper impedance match when
using two 8 Ohm speaker cabinets.
If you are using non-MESA cabinets with your Recto-Verb 25, it is very important to know your cabi-
net’s impedance and make sure you are connecting speakers correctly and safely to the amp. Failure
to connect speakers correctly can cause expensive damage to tubes, transformers and the amp in
general. ALWAYS make sure to connect your cabinet correctly to your amp. Check out the information later in this manual
regarding speaker impedance and speaker hook-up schemes. No matter how unusual your speaker setup, it is generally pos-
sible to get good performance.
INPUT
FT SW
WARNING:
Unplug power
before servicing
fuse or chassis
GAIN TREBLE MID PRESENCE
MASTER
POWER
STANDBY
CLEAN
PUSHED
VINTAGE
FT
SW
CH 1
CH 2
MODERN
25 WATTS
10 W
120 V~
60 Hz
1 A
1 A
SLO
BLO
8 OHM
(COMBO) (USE WITH TWO 8OHM SPKRS)
4 OHM 4 OHMSEND RETURN
REVERB
EXT
REVERB
CH 2 CH 1
ON
ON
BASS
AMPLIFIER
44YV
25 W
10 WATTS
D
U
A
L
RECTO-VERB 25
TUBE GUIDE
6 x 12AX7
2 x EL 84
PATENTED
6,621,907
7,602,927
SPEAKERS
LOOP
RECTO-VERB 25
VACUUM TUBE
AMPLIFIER
HANDCRAFTED
IN PETALUMA,
CALIFORNIA
INPUT
FT SW
WARNING:
Unplug power
before servicing
fuse or chassis
GAIN TREBLE MID PRESENCE
MASTER
POWER
STANDBY
CLEAN
PUSHED
VINTAGE
FT
SW
CH 1
CH 2
MODERN
25 WATTS
10 W
120 V~
60 Hz
1 A
1 A
SLO
BLO
8 OHM
(COMBO) (USE WITH TWO 8OHM SPKRS)
4 OHM 4 OHMSEND RETURN REVERB
EXT
REVERB
CH 2 CH 1
ON
ON
BASS
AMPLIFIER
44YV
25 W
10 WATTS
D
U
A
L
RECTO-VERB 25
TUBE GUIDE
6 x 12AX7
2 x EL 84
PATENTED
6,621,907
7,602,927
SPEAKERS
LOOP
RECTO-VERB 25
VACUUM TUBE
AMPLIFIER
HANDCRAFTED
IN PETALUMA,
CALIFORNIA
INPUT
FT SW
WARNING:
Unplug power
before servicing
fuse or chassis
GAIN TREBLE MID PRESENCE
MASTER
POWER
STANDBY
CLEAN
PUSHED
VINTAGE
FT
SW
CH 1
CH 2
MODERN
25 WATTS
10 W
120 V~
60 Hz
1 A
1 A
SLO
BLO
8 OHM
(COMBO) (USE WITH TWO 8OHM SPKRS)
4 OHM 4 OHM
SEND RETURN REVERB
EXT
REVERB
CH 2 CH 1
ON
ON
BASS
AMPLIFIER
44YV
25 W
10 WATTS
D
U
A
L
RECTO-VERB 25
TUBE GUIDE
6 x 12AX7
2 x EL 84
PATENTED
6,621,907
7,602,927
SPEAKERS
LOOP
RECTO-VERB 25
VACUUM TUBE
AMPLIFIER
HANDCRAFTED
IN PETALUMA,
CALIFORNIA
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