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Alembic Club » Alembic Basses & Guitars » Archive: 2003 » Archive through June 04, 2003 » Brown Bass Question for Mica « Previous Next »

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stoney
Intermediate Member
Username: stoney

Post Number: 158
Registered: 7-2002
Posted on Tuesday, May 13, 2003 - 6:01 am:   Edit Post

Hi Mica,
After going through much R&D with my new amplification system, I've noticed that the output on my BB is much much lower than that of my Essence. The Essence has signature electronics, sort of the same as my BB. When plugged into my iAmp 800 my Essence, when turned all the way up, peaks on the LED at an input volume of 3 or 4 on the iAmp. I have to crank the input volume on the iAmp up to about 7 or 8 to get the same LED reading from my brown bass. Recently, I've taken to pre-amping when using the Brown Bass. (The pots are all the way up in my Brown Bass). I've also noticed that the output from my bridge pickup is very very low by comparison to the neck pickup. I suppose it will be lower because there's less string vibration there, the the difference is somewhat staggering. Any ideas?

Stoney
mica
Moderator
Username: mica

Post Number: 910
Registered: 6-2000
Posted on Tuesday, May 13, 2003 - 6:43 am:   Edit Post

The bridge pickup has the same output as the neck pickup as they are identical. The bridge pickup is down where the string doesn't vibrate much, so it's usually set up closer tot he strigs than the neck pickup.

Since both the Brown Bass and the Signature electronics have a separate preamp for each pickup internally, you can easily adjust the output of either pickup to suit your needs. You can set the height of the pickup to where you prefer teh soudn without regard to the affect on the output level, then correct it with the trimpots.

Have you tried adjusting the internal preamps in the Brown Bass?
stoney
Intermediate Member
Username: stoney

Post Number: 159
Registered: 7-2002
Posted on Wednesday, May 14, 2003 - 5:17 am:   Edit Post

I have raised the bridge pickup and turned both of the trimpots up to the max. Actually, my the trimpots on my Essence are only set at about 75% and it still has more output. Having done that, at the same "input volume" of my iAmp, the BB barely makes a "Blip" on the LED readout while the Essence pegs them. I'm a little lost here and feel I may have a problem. Do you think this has anything to do with the master volume control I had installed?
palembic
Senior Member
Username: palembic

Post Number: 420
Registered: 9-2002
Posted on Wednesday, May 14, 2003 - 6:40 am:   Edit Post

I'm not as technical guy AT ALL but can it be a battery problem? Or is that too simple?
jfoster
Junior
Username: jfoster

Post Number: 11
Registered: 3-2003
Posted on Wednesday, May 14, 2003 - 11:54 am:   Edit Post

I'm not much of a techno wizard either but it has been my experience that a battery problem would result in distortion as opposed to volume loss.
stoney
Intermediate Member
Username: stoney

Post Number: 160
Registered: 7-2002
Posted on Thursday, May 15, 2003 - 4:20 am:   Edit Post

Yea, John, you're right. When the battery goes, it sounds like you're playing through a ripped speaker. But just for grins, the first thing I did was replace the battery. I know the BB will give a deeper, somewhat more subtle tone than my Essence because of the woods used, but I didn't expect the output would be sooooo low.
palembic
Senior Member
Username: palembic

Post Number: 426
Registered: 9-2002
Posted on Thursday, May 15, 2003 - 4:34 am:   Edit Post

Well ...I was trying!
This situation sounds so WEIRD!?
mica
Moderator
Username: mica

Post Number: 913
Registered: 6-2000
Posted on Thursday, May 15, 2003 - 4:14 pm:   Edit Post

According to my dad, you should notice the BB to have 6dB less output than the Essence. If it's more than that, you want to send the electronics in sometime for testing.

In the meantime, to match the outputs you may want to turn down the output of the Essence.

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