Best amplifier for "hard" acoustic system

Artem_M · 12th June 2009, 02:06 PM

Hi all,

My name is Artem, I'm from Ukraine.

I have built one channel of Zen4.
When I try to use Zen4 with my Dynaudio Contour 1.1, I listen that:
high is very good, middle is simple good, bass is (like for me) not enough.

Integrally sound is very nice, better then my Onkyo receiver

I think, main reasons for poor bass are low sensitive (86dB) and low resistance (4 Ohm) of Dynaudio speaker. This speaker is very hard for lot of amplifiers.

What is the best Zen amplifier for "hard" acoustic system (low sensitive and low resistance): Aleph3, Aleph 30/40/75, AlephX, .....

Please, advise!

Nelson Pass · 12th June 2009, 07:06 PM

Some of these are not Zens.

Take a look at the A75.

Artem_M · 15th June 2009, 02:52 PM

Thanks for Your anwser, Nelson!

what is damping factor for this amplifier (approximately)?

Nelson Pass · 15th June 2009, 08:56 PM

It depended on what version you built. The original version with
maximum open loop and feedback was probably a couple hundred,
although I don't see that in the article.

12th June 2009, 02:06 PM	#1
Artem_M diyAudio Member Join Date: Dec 2008	Best amplifier for "hard" acoustic system Hi all, My name is Artem, I'm from Ukraine. I have built one channel of Zen4. When I try to use Zen4 with my Dynaudio Contour 1.1, I listen that: high is very good, middle is simple good, bass is (like for me) not enough. Integrally sound is very nice, better then my Onkyo receiver I think, main reasons for poor bass are low sensitive (86dB) and low resistance (4 Ohm) of Dynaudio speaker. This speaker is very hard for lot of amplifiers. What is the best Zen amplifier for "hard" acoustic system (low sensitive and low resistance): Aleph3, Aleph 30/40/75, AlephX, ..... Please, advise!

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12th June 2009, 07:06 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	Some of these are not Zens. Take a look at the A75.

15th June 2009, 02:52 PM	#3
Artem_M diyAudio Member Join Date: Dec 2008	Thanks for Your anwser, Nelson! what is damping factor for this amplifier (approximately)?

15th June 2009, 08:56 PM	#4
Nelson Pass The one and only Join Date: Mar 2001	It depended on what version you built. The original version with maximum open loop and feedback was probably a couple hundred, although I don't see that in the article.

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