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Safe to increase bias on factory Aleph 30's?
Safe to increase bias on factory Aleph 30's?
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Old 14th January 2005, 05:27 PM   #1
hifimaker is offline hifimaker  United States
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Question Safe to increase bias on factory Aleph 30's?

Hi everyone,

I have a good friend with a pair of factory Aleph 30's driving a pair of Martin Logan Aerius i's.

How far can the bias be safely turned up to drive these lower impedance speakers a bit better?

Hoping to get more power into 2-4 ohms.

Thank you,

-David
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Old 14th January 2005, 05:33 PM   #2
Netlist is offline Netlist  Belgium
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All you dare. But then again watch the heat.
You should be able to touch the heatsink for five seconds...without gloves.

/Hugo
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Old 17th January 2005, 08:48 PM   #3
Nelson Pass is offline Nelson Pass  United States
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Safe to increase bias on factory Aleph 30's?
Default Re: Safe to increase bias on factory Aleph 30's?

Quote:
Originally posted by dw8083
How far can the bias be safely turned up to drive these lower impedance speakers a bit better? Hoping to get more power into 2-4 ohms.
Forget it, sez I.
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Old 17th January 2005, 11:43 PM   #4
hifimaker is offline hifimaker  United States
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That's what I was afraid of. The amp would sound good for a few minutes and then... poof.

Appreciate the the kind help.

-David
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Old 18th January 2005, 06:57 PM   #5
Nelson Pass is offline Nelson Pass  United States
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Safe to increase bias on factory Aleph 30's?
You can do it, but you really can't increase the bias enough
to make that much difference. Easier to just start with a
larger design or get some Lowther or Fostex drivers.
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Old 18th January 2005, 08:18 PM   #6
audionut is offline audionut
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Safe to increase bias on factory Aleph 30's?
You could parrallel the inputs and the outputs of the two channels to get more drive...I've have some home brew aleph threes running this way for the last 2 years
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