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Fender DRRI reverb on Normal Channel, How?

E

Europa760

Anyone have any experience getting the amps reverb into the normal channel?

im not interested in jumping channels either. i want the reverb wired internally into the normal channel.

and if by any chance anyones done this, will it make it sound thinner like the vibrato channel? in other words, would the vibrato channel sound as fat as the normal channel if it didnt have the reverb?

thanks in advance.

is there a general way to approach this?
 

TwinandTwang

Member
Messages
432
There is a mod that can add the Reverb and Vibrato (Tremolo) to the Normal channel. It does not change the sound of the Normal channel, , just adds the effects.
 
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Europa760

TwinandTwang said:
There is a mod that can add the Reverb and Vibrato (Tremolo) to the Normal channel. It does not change the sound of the Normal channel, , just adds the effects.
do you know how i go about finding this mod?
 

Dave C

Member
Messages
1,353
How about fattening up the vibrato channel by removing the bright cap from the volume control which is why it sounds thin in the first place,
Dave C
 

Dave C

Member
Messages
1,353
The cap I'm refering to is labeled C-10 both on the schematic and the circuit board, the normal chanel doesn't have this cap which is why it sounds fatter. This cap is the "bright"switch cap which is hard wired "on" in a DRRI as well as SF&BF DRs. In a DRRI it is on the narrow board with the control pots between the vibrato chanel volume pot and input jacks. Hope this helps.
Dave C
 

radiohedzz

Member
Messages
77
I've disconnected the bright cap on the vibrato channel, which made the channel much more useable, but the normal channel still sounds fatter after the mod. I use the normal channel exclusively on my DRRI because I get a fatter, more 3 dimensional sound.

I've read of the modification which allows both reverb and trem on both channels but that involves equalizing the gain in both channels and will impact the tone of the normal channel.
 

Dave C

Member
Messages
1,353
There is a signal loss on the vibrato chanel from the vibrato circuit itself whether it is used or not. I often replace the depth pot with a push/pull pot and use the switch to remove the vibrato circuitry and resultant signal loss from the signal path for a significant boost.
The tone stack can also be modded with another push/pull to remove the losses due to the tone circuit itself which results in an even bigger boost. Mesa Boogie does this on a few amps. I don't particularly care for the resulting tone usually, but it does give a healthy gain boost by cutting down the parasitic losses.
Dave C
 
E

Europa760

Dave C said:
How about fattening up the vibrato channel by removing the bright cap from the volume control which is why it sounds thin in the first place,
Dave C
ive done that already.
 
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Europa760

Larry1u23 said:
I've disconnected the bright cap on the vibrato channel, which made the channel much more useable, but the normal channel still sounds fatter after the mod. I use the normal channel exclusively on my DRRI because I get a fatter, more 3 dimensional sound.

I've read of the modification which allows both reverb and trem on both channels but that involves equalizing the gain in both channels and will impact the tone of the normal channel.
yea, the normal channel sounds a lot better.
 
Messages
6,116
Dave C said:
How about fattening up the vibrato channel by removing the bright cap from the volume control which is why it sounds thin in the first place,
Dave C






How about removing the EQ slope resistor and adding a raw control,
adds midrange and overdrives nicely.
 

RussB

low rent hobbyist
Messages
11,157
Roccaforte Amps said:
How about removing the EQ slope resistor and adding a raw control,
adds midrange and overdrives nicely.
Is it OK to have DC on a pot?

I'm assuming you'd go with a 100k-L pot?
 

mikeller

Member
Messages
1,496
remove the V1 tube which is the normal channel preamp tubes. That and the bright cap mod helps the vibrato channel alot.
 
E

Europa760

mikeller said:
remove the V1 tube which is the normal channel preamp tubes. That and the bright cap mod helps the vibrato channel alot.
what does removing that tube help it do?
 




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