Author |
Message |
fmm
Senior Member Username: fmm
Post Number: 415 Registered: 6-2002
| Posted on Tuesday, March 31, 2015 - 6:08 pm: | |
All: Last fall I purchased a F-2B (serial # 544) and am just now getting around to trying it out. Caps look good, foam should probably be replaced. I connected it to by black box and my new (to me) DS-5R. The signal is very weak, and when I turn everything all the way up, distorted. I replaced the tubes (Sylvanias) with Groove Tubes Silver Series. Same result. What should I try next? |
mica
Moderator Username: mica
Post Number: 8479 Registered: 6-2000
| Posted on Tuesday, March 31, 2015 - 8:04 pm: | |
Is it distorted in both channels the same? |
fmm
Senior Member Username: fmm
Post Number: 416 Registered: 6-2002
| Posted on Tuesday, March 31, 2015 - 8:22 pm: | |
Yes. Both channels are behaving the same. |
mica
Moderator Username: mica
Post Number: 8481 Registered: 6-2000
| Posted on Wednesday, April 01, 2015 - 12:05 pm: | |
Make sure you have exercised the Mixed jack (M) on the back. Plug and unplug like 30-50 times. If that doesn't work, it might need replacing. There is also a more detailed cleaning procedure in the FAQ |
fmm
Senior Member Username: fmm
Post Number: 417 Registered: 6-2002
| Posted on Wednesday, April 01, 2015 - 1:57 pm: | |
I will try that as soon as I get home. |
fmm
Senior Member Username: fmm
Post Number: 418 Registered: 6-2002
| Posted on Wednesday, April 01, 2015 - 5:12 pm: | |
Success! Kind of. The issue may have been a case of pilot error, I have my gear in a server rack and use a patch bay, and I may have routed the output of the M jack to the bottom row of the patch bay when I wanted the top. But now I may have another issue. I'm running the DS-5R in stereo. Using the front outputs to drive the F-2B (Bass to A, Treble to B). Pickup selector is on the bridge pickup. My expectation is that only channel B will be driven, but both channels are. I get the same behavior if the pickup selector is set to the neck pickup. Note that I believe the signal coming out of the bass is fine, because with the pickup selector on the bridge pickup, the neck pickup volume as no effect, and visa-versa. I think I'll go read the FAQ on the F-2B. |
jazzyvee
Senior Member Username: jazzyvee
Post Number: 4454 Registered: 6-2002
| Posted on Wednesday, April 01, 2015 - 10:59 pm: | |
That seems odd for sure. When I have the DS-5 switched to stereo I get each pickup out of the respective bass and treble sockets. When it is switched to mono I get both pickups from the bass socket and the bridge pickup from the treble socket. |
keith_h
Senior Member Username: keith_h
Post Number: 2188 Registered: 2-2005
| Posted on Thursday, April 02, 2015 - 5:41 am: | |
Try exercising the DS-5 Stereo/mono switch if it hasn't been used in a while. Keith |
fmm
Senior Member Username: fmm
Post Number: 419 Registered: 6-2002
| Posted on Thursday, April 02, 2015 - 7:06 am: | |
Excellent ideas. The plan for tonight: 1. DS-5R in mono mode, see if I get both pickups out of bass, bridge pickup out of treble. 2. Excercise the DS-5R stereo/mono switch. 3. Use a non-Alembic bass. Plug into input A, see if the signal also ends up in B (and visa-versa) |
hieronymous
Senior Member Username: hieronymous
Post Number: 1492 Registered: 1-2005
| Posted on Thursday, April 02, 2015 - 10:37 am: | |
The two channels of the F-2B should definitely be completely separate. I have used it in the studio with bass in one channel, bass synth pedals in the other, playing simultaneously, with no leakage. |
fmm
Senior Member Username: fmm
Post Number: 420 Registered: 6-2002
| Posted on Thursday, April 02, 2015 - 4:21 pm: | |
Maybe it’s the pickup selector switch on the bass. Using a different bass, I verified that there is no crosstalk between channels on the F-2B. Using the Series I, DS-5R in stereo mode: Pickup selector set to both pickups: Neck pickup drives bass output, bridge pickup drives treble output. Pickup selector set on bridge pickup: Bridge pickup drives bass and treble outputs, neck pickup has no effect. Pickup selector set on neck pickup: Neck pickup drives bass and treble outputs, bridge pickup has no effect. W E I R D. |