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Old 5th November 2007, 10:24 AM   #1
AJ is offline AJ  United States
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Default Autoformer options

Has anyone used wall-mounted autoformers as an alternative to a resistor based l-pad? The prices at PE are substantially lower than the Fostex models I was looking at and thought they might be a usable option. Just curious.

Thanks.
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Old 5th November 2007, 04:40 PM   #2
AJ is offline AJ  United States
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Default I should mention...

I need to knock ~12db off some compression drivers and the system is tri-amped with active XO. The transformer attenuators will be used between the amps and the drivers.

Thanks again.
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Old 5th November 2007, 04:47 PM   #3
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Why not just turn down the gain on the appropriate crossover channel. Even cheaper.
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Old 5th November 2007, 07:17 PM   #4
AJ is offline AJ  United States
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Hi Pinkmouse

Of course I could do that. But then I wouldn't have the fun of spending needless dollars on yet another audio gizmo.
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Old 5th November 2007, 08:44 PM   #5
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Well, you could spend it on some new music?
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Old 5th November 2007, 11:24 PM   #6
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I was also looking at the fostex, and decided that was too much money, so after some research, several people recommended just using transformer wall volume control, the trouble is finding one with smaller steps, so i found this one,
atlas e408-100 with 1.5db steps

currently on order, hopefully will receive this week.
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Old 6th November 2007, 01:33 PM   #7
AJ is offline AJ  United States
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Thanks dnewcomer for that link. The best I could find at PE was a unit from Buffalo Electronics. It has 1.5 db steps for the first five steps and then 3db for the next five steps. It's about the same price as the Atlas.

I need to shop around a bit more.
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Old 7th November 2007, 09:47 AM   #8
sreten is offline sreten  United Kingdom
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Default Re: I should mention...

Quote:
Originally posted by AJ

I need to knock ~12db off some compression drivers and the system
is tri-amped with active XO. The transformer attenuators will be used
between the amps and the drivers.

Thanks again.
As stated utterly pointless with an active system. Knock back the
amplifier 12dB and get an extra 12dB of dynamic headroom, or
use an amplifier with 1/16 the power, which is what using the
autotransformers or L-pads will effectively do.

/sreten.
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Old 7th November 2007, 04:07 PM   #9
AJ is offline AJ  United States
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Thanks for the advice Sreten. I do understand that I have that capability already. I'm just looking at alternatives mostly for the experience of it. It's not always about taking the most obvious route.
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