Not really. EQ almost always has a high pass to keep low noise and junk out of the speakers. It's very useful in live sound. The low pass I don't know about. Oops, didn't see the post above!
not necessarily...
hi pass could have been used as a 'rumble filter'
and lo pass could be used to tame the highs that sometimes cause issues..
.........................
dave's not hear
Not really. EQ almost always has a high pass to keep low noise and junk out of the speakers. It's very useful in live sound. The low pass I don't know about. Oops, didn't see the post above!
From the little documentation found on the 1653. This unit is a professional single channel
EQ. The low pass and high pass can be put in the off position. The { high pass} is adjustable form off ,20 ,40 ,80, 160 hz and { low pass } off, 5, 8 ,12.5, and 20 khz .
You need 2 1653 for 2 channels operating system.
Ok thanks, I have (2) 1653 and (2) channels of (2) way speakers with (2) 500 Hz crossovers. I suppose the filters on the equalizers could be used if I added more amps and a sub (below) and tweeter (above) the frequency settings of the filters.Originally Posted by LICORNE
Or as someone said to prevent rumbling (lows) and ringing (highs) or just to protect the capabilities of the drivers.
I see now! Thanks
Still wish I could find documents on these.
Theres several places :
The Altec Unofficial site with the 1650
The Altec professional site The 1650 manual
The Lansing Heritage Altec Libray site The 1650 brochure and the 1653 in the 1980's brochure
Thanks, I'll check those out.
Rob
Someone sent me a hard copy of the service instructions and other documents for the 1653A including schematics and all.
I would like to scan this and put it online in pdf format for anyone looking for it.
Where would be the best place to put it?
thanks
rob
I would give it to Todd White to be added to the Altec Unofficial Site.
Ok thanks!
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