Altec 902 and 416-8C - X-Over freq?

I received an e-mail from Todd an apparently this is the way it was done - 7/8ths to 1inch.

For my own peace of mind I will make a 7/8ths to 1inch adaptor spacer out of 5mm thick phenolic and continue with the project although I must say I am wondering if the Model 19 cab might be a better route even if it means leaving the A7 cabs in dust gathering mode...

But the project will now proceed.


Winders

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For my own peace of mind I will make a 7/8ths to 1inch adaptor spacer out of 5mm thick phenolic and continue with the project

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Thats what i'd do.

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I must say I am wondering if the Model 19 cab might be a better route even if it means leaving the A7 cabs in dust gathering mode...

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I love them both for entirely different reasons. The A7 has dynamic attack that is 2nd to none, for some program material and my listening preferences this can really "float my boat".

With other program material and different listening moods it's the very well balanced extension into the lowest octave, and well refined HF response of the Model 19 that can equally "float my boat".

19's have a pretty steady demand, if you built them and didn't like them, you could always find another home for them, and you'd have an opportunity to compare them to A7's in your own listening environment.

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Originally Posted by bowtie427ss

Thats what i'd do.

I love them both for entirely different reasons. The A7 has dynamic attack that is 2nd to none, for some program material and my listening preferences this can really "float my boat".

With other program material and different listening moods it's the very well balanced extension into the lowest octave, and well refined HF response of the Model 19 that can equally "float my boat".

19's have a pretty steady demand, if you built them and didn't like them, you could always find another home for them, and you'd have an opportunity to compare them to A7's in your own listening environment.

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Thanks...

I was attracted to the A7/825 cab due to the horn loaded bass driver and the M19 seemingly gets away without this... I guess I will get the A7's running and then decide...

Winders

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I was attracted to the A7/825 cab due to the horn loaded bass driver

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Just remember, it's only a horn down to ~100hz, below that roll-off is fairly steep. On their own, i really like the A7 for big band, and vintage jazz/blues. For more modern stuff and even hard rock i need smoother and more extended bottom octave response. I augment my A7's with a quad of emilar EW15-8B woofers in ~15 ft3 boxes, with enough amplifier, they can almost track the midbass dynamics of the A7's at my preferred listening levels.:2thumbsup:

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Originally Posted by bowtie427ss

Just remember, it's only a horn down to ~100hz, below that roll-off is fairly steep. On their own, i really like the A7 for big band, and vintage jazz/blues. For more modern stuff and even hard rock i need smoother and more extended bottom octave response. I augment my A7's with a quad of emilar EW15-8B woofers in ~15 ft3 boxes, with enough amplifier, they can almost track the midbass dynamics of the A7's at my preferred listening levels.:2thumbsup:

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Yes, my feeling at the moment is I can try lowering Fb as the 825 cab baffle boards lend themselves to this readily - so to try a lower bass reflex freq would be relatively easy - how it works - hey who knows!


Cheers