| Author |
Topic: Question for Mike Brown |
John Parker
From:
Golden Valley, Az. USA
|
Posted 5 Dec 2004 9:56 am |
|
Mike,
I know this may seem like a silly question but if I don't ask I'll never know or learn.
I have two Session 400s. Both are Black Widow Equipped, Limited. One I set the main volume on 3 and have plenty of volume. The second one I have to set to 5 to match the volume of the first amp. Any ideas as to why two seemingly identical amps have such a difference in volume output??
------------------
John Parker
Zumsteel SD10 3x5
Peavey Session 400
|
|
|
|
John Daugherty
From:
Rolla, Missouri, USA
|
Posted 5 Dec 2004 11:27 am
|
|
| When you turn the gain knobs to minimum (ccw),are they pointed at zero? One of the knobs may have been pulled off and replaced wrong. Also, I assume that the pre-gain on both amps is set to the same level. |
|
|
|
John Parker
From:
Golden Valley, Az. USA
|
Posted 5 Dec 2004 3:08 pm
|
|
I checked all the nobs on both amps and they are all on properly. I also made sure the lows, mids, highs, reverbs, etc, were all set the same on both amps. I know that my first amp has had a mod kit installed but I don't know about the second amp. Would that make a difference? (I'm still learning about all this electronic stuff so please bear with me.)
------------------
John Parker
Zumsteel SD10 3x5
Peavey Session 400
|
|
|
|
Joe Alterio
From:
Irvington, Indiana
|
Posted 5 Dec 2004 4:35 pm
|
|
| Different speakers? |
|
|
|
Jon Light (deceased)
From:
Saugerties, NY
|
Posted 5 Dec 2004 4:43 pm
|
|
| Even not knowing much about the mod, definitely the difference between one amp having it and the other not would result in differences in tonal characteristics (otherwise, why do a mod?) and certainly could also create differences in perceived volume. Also, components have variations in accuracy (+ or - 2%, 5%, 10%, whatever) that could result in variation from one device to another, and over time these values can drift even more. Setting a pot to a printed number on a faceplate is far from a precise calibration. |
|
|
|
Mike Brown
From:
Meridian, Mississippi USA
|
Posted 6 Dec 2004 9:19 am
|
|
| I agree with the comments by Jon Light. After the mod kit was installed, then it is not a comparison of "apples vs. apples". But, I wouldn't have thought that it would be that wide of a margin. Make sure that the knob indicators are identical as it is a "pull off" type of knob. |
|
|
|
Ray Minich
From:
Bradford, Pa. Frozen Tundra
|
Posted 6 Dec 2004 9:35 am
|
|
| Quote: |
| Setting a pot to a printed number on a faceplate is far from a precise calibration. |
My world is over.... |
|
|
|
Mike Brown
From:
Meridian, Mississippi USA
|
Posted 6 Dec 2004 11:13 am
|
|
| Ray is correct. |
|
|
|
