equalizer?

[Rob 515]

1650 = cut only
1653 = boost/cut
both are variable Q

great... so these (1653a) probably won't be the best choice for home audio playback system then? correct?
I can always use these till I find something better and then use these on another system I have.

thanks

rob

[whitebroncoii]

great... so these (1653a) probably won't be the best choice for home audio playback system then? correct?
I can always use these till I find something better and then use these on another system I have.

thanks

rob

The 1653A is a professional 1/3rd octave equalizer and a pair of them would do a remarkable job on a home stereo. The 1653A has unbalanced in/out unless the following transformers are installed; 15335A input / 15356A output. Jumpers must be installed in the transformer octal sockets when they are not installed.

[Rob 515]

The 1653A is a professional 1/3rd octave equalizer and a pair of them would do a remarkable job on a home stereo. The 1653A has unbalanced in/out unless the following transformers are installed; 15335A input / 15356A output. Jumpers must be installed in the transformer octal sockets when they are not installed.

Great, can't wait to get all this together. I can remove the transformers and install jumpers if needed.

Thank you for all the help! Couldn't do it without you that's for sure.

rob

[Rob 515]

The 1653A is a professional 1/3rd octave equalizer and a pair of them would do a remarkable job on a home stereo. The 1653A has unbalanced in/out unless the following transformers are installed; 15335A input / 15356A output. Jumpers must be installed in the transformer octal sockets when they are not installed.

Hi, I can't find any manuals or anything anywhere on the net for the altec 1653A only for 1753a. Would you happen to know of anyplace where I could download or view that online. Trying to figure out how I should set the high pass and low pass filters using 299-8a and 515-8GHP, but would be nice to have schematics, specs and all.
thanks
rob

[whitebroncoii]

Hi, I can't find any manuals or anything anywhere on the net for the altec 1653A only for 1753a. Would you happen to know of anyplace where I could download or view that online. Trying to figure out how I should set the high pass and low pass filters using 299-8a and 515-8GHP, but would be nice to have schematics, specs and all.
thanks
rob

The 1653A is an equalizer, not a crossover. You use the 1653A to shape the entire audio spectrum going to your speaker(s) or crossover. A typical 299/515 electronic crossover would be set for 18db/octave slopes and a crossover frequency of 800Hz.

[Rob 515]

The 1653A is an equalizer, not a crossover. You use the 1653A to shape the entire audio spectrum going to your speaker(s) or crossover. A typical 299/515 electronic crossover would be set for 18db/octave slopes and a crossover frequency of 800Hz.

I know it's an equalizer but it still has high pass and low pass filter adjustments. Obviously these were used one unit per driver instead of one unit per 2 way speaker, since it has the low and high pass filters?

[just me now]

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..

[Panomaniac]

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!

[LICORNE]

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.