Aleph X as headphone amplifier

Mickey · 24th October 2007, 07:55 PM

How to scale down an Aleph X? I think 10 watts is more than enough for most headphones/ear speakers, thought their impedance is much higher (32-600 ohm).

GRollins · 24th October 2007, 08:04 PM

Your problem isn't the power, it's the lack of a common ground between the left and right channels. If you're willing to hack into the wiring for the left and right channels and run completely separate leads for the two speakers, you can make it work. Otherwise it won't fly.
Incidentally, 40W into 8 Ohms isn't 40W into 32 Ohms (Grado) or a couple hundred Ohms for some other headphones.

Grey

Mickey · 25th October 2007, 11:02 AM

Thank you Grey, does 40 watts into 8 ohms equals to 10 watts into 32 ohms and 0.5 watt into 600 ohms?

By the way I want to remove the 1/4" phone plug and drive each channel with a fully balanced amplifier

GRollins · 25th October 2007, 02:29 PM

Yep. Slightly over .5W/600 Ohms.

Grey

24th October 2007, 07:55 PM	#1
Mickey diyAudio Member Join Date: Feb 2005 Location: China	Aleph X as headphone amplifier How to scale down an Aleph X? I think 10 watts is more than enough for most headphones/ear speakers, thought their impedance is much higher (32-600 ohm). __________________ I can get you whatever you want

25th October 2007, 11:02 AM	#3
Mickey diyAudio Member Join Date: Feb 2005 Location: China	Thank you Grey, does 40 watts into 8 ohms equals to 10 watts into 32 ohms and 0.5 watt into 600 ohms? By the way I want to remove the 1/4" phone plug and drive each channel with a fully balanced amplifier __________________ I can get you whatever you want

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24th October 2007, 08:04 PM	#2
GRollins diyAudio Member Join Date: Feb 2001 Location: Columbia, SC	Your problem isn't the power, it's the lack of a common ground between the left and right channels. If you're willing to hack into the wiring for the left and right channels and run completely separate leads for the two speakers, you can make it work. Otherwise it won't fly. Incidentally, 40W into 8 Ohms isn't 40W into 32 Ohms (Grado) or a couple hundred Ohms for some other headphones. Grey

25th October 2007, 02:29 PM	#4
GRollins diyAudio Member Join Date: Feb 2001 Location: Columbia, SC	Yep. Slightly over .5W/600 Ohms. Grey

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