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Bose 901 Equalizer problems!

century tek said:
Yeah, those newer AV receivers have weird tape loops that never seem to work like the old fashioned one's on our 70's gear!

Have you simply tried tape 1 yet?

Theo Bose EQ's are really made to go hand in hand with the selected Bose speakers.

EDIT: I see he has both.....disregard!
Click to expand...

Only Tape 2 is a true monitor loop on this receiver.
 
whoaru99 said:
They are "8 ohm" speakers and, far as I know, don't have any wild impedance swings.

They are power hungry though, with all the low end boost the EQ provides to make the 901s work like 901s should.

I have a pair in my garage and it's very easy to make the meters on my amp bounce up to 100W or more. While it is loud, it's by no means what I'd call ear-bleeding volume at that level. Running 80-85dB(A) about 13ft from the speakers.
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I have never owned a pair of 901s, as they have always sounded odd to me. I have heard them at acquaintances. I think if I were to buy another pair of Bose, it would be a vintage pair of 10.2s, and then rebuild and refoam, Thank you for the information on the impedance :)
 
paddypaws said:
We are getting there, other poster above please read the thread, his receivers tape loop is working, scootypuffjr please do the second test. Whilst you are playing music, pull out the tape 2 cable loop the music should cut out.
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Just tried the 2nd test. Pulled out the cables(still using tape 2 monitor function)
Sound cut out, not completely, but very faint.
 
Ok don’t worry about the faint sound it probably crosstalk in the amplifier which we’ll not get into (it’s a common minor issue).
So we think we now have a working receiver, 2 good RCAs and a tape loop that does the right thing. Next is to take the ‘rec out’ on the amp tape 2 and plug it to the Bose Eq. Then plug the output of the Bose Eq and plug that to the play or input on the tape 2 connections. Power up the Bose unit and make sure it’s tape monitor switch is in the normal source position.
 
paddypaws said:
Ok don’t worry about the faint sound it probably crosstalk in the amplifier which we’ll not get into (it’s a common minor issue).
So we think we now have a working receiver, 2 good RCAs and a tape loop that does the right thing. Next is to take the ‘rec out’ on the amp tape 2 and plug it to the Bose Eq. Then plug the output of the Bose Eq and plug that to the play or input on the tape 2 connections. Power up the Bose unit and make sure it’s tape monitor switch is in the normal source position.
Click to expand...

The OP has already confirmed these connections verbally and previous pictures seem to confirm it. See post #28.

But, maybe something will change this time around. :dunno:
 
whoaru99 said:
The OP has already confirmed these connections verbally and previous pictures seem to confirm it. See post #28.

But, maybe something will change this time around. :dunno:
Click to expand...
That did not test that the tape loop was working, we’ve now tested that it’s working. Try adding something useful. We’re actually getting somewhere after 3 pages of getting nowhere.
 
paddypaws said:
That did not test that the tape loop was working, we’ve now tested that it’s working. Try adding something useful. We’re actually getting somewhere after 3pages of getting nowhere.
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Actually, everything you've suggest thus far had already been suggested at least once.

I'm always amazed when and why people receiving advice do or don't do things.

If the OP listens to you, GREAT, but just for the record, none of your suggestions thus far are new to the party.
 
paddypaws said:
That did not test that the tape loop was working, we’ve now tested that it’s working. Try adding something useful. We’re actually getting somewhere after 3 pages of getting nowhere.
Click to expand...


Wow.
Good luck OP, hope you get it figured out.
 
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whoaru99 said:
Actually, everything you've suggest thus far had already been suggested at least once.

I'm always amazed when and why people receiving advice do or don't do things.

If the OP listens to you, GREAT, but just for the record, none of your suggestions thus far are new to the party.
Click to expand...
The thread was confused and smoke screened in lots of non relevant info.
However we seem to be narrowing down the problem now, which hadn’t happened before. I didn’t claim to be posting unique insights I was just getting to crux of the problem ? You seem to admit that the OPs issue was unsuccessful, not addressed, so what’s your problem?
 
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J
paddypaws said:
Ok don’t worry about the faint sound it probably crosstalk in the amplifier which we’ll not get into (it’s a common minor issue).
So we think we now have a working receiver, 2 good RCAs and a tape loop that does the right thing. Next is to take the ‘rec out’ on the amp tape 2 and plug it to the Bose Eq. Then plug the output of the Bose Eq and plug that to the play or input on the tape 2 connections. Power up the Bose unit and make sure it’s tape monitor switch is in the normal source position.
Click to expand...


Just tried this and same result. Works without the monitor function. With monitor function= very low sound. Have to put ear up to speaker to hear even the faintest of sounds.
 
whoaru99 said:
Your comments, actually, since that last doozie is complete bullshit if you'd actually read the thread.
Click to expand...
You’ve done nothing but add confusion and unhelpful comments.

Sorry original poster, we were nearly getting there until these idiots starred lambasting me for helping you. I’ll duck out here feel free to thank your friends above of their incredibly helpful comments, good luck!
 
scootypuffjr said:
J



Just tried this and same result. Works without the monitor function. With monitor function= very low sound. Have to put ear up to speaker to hear even the faintest of sounds.
Click to expand...

So, now that you've confirmed the Tape 2 monitor works and the cables work, it suggests the EQ could be the issue.

Do you have some sort of source (CD player, portable music player, just about anything except a turntable) that you can plug into the EQ amplifier input then plug the EQ amplifer output to one of the source inputs of the receiver?

Doing this would be like a double-check that the EQ is or is not passing signal as presently it seems not to be.
 
Note in the test described in post 57 and 58, be sure the Tape 2 switch is NOT engaged UNLESS you still have the jumper cables connected on the Tape 2 jacks.
 
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