Aleph 3 - strange soundstage

Koy · 11th November 2001, 10:13 PM

I have just finished the Aleph 30.Unfortunatelly I am a little disappointed with the sound. The soundstage seems to be very flat, with almost no stereo effect. I use separate supply for each channel, earth to one point and the channels except the toroid have nothing in common. Is this sound typical for Aleph or is there any mistake on my side?

GRollins · 11th November 2001, 10:48 PM

Koy,
The Aleph 2s I built image almost as well as my tube amps, which is to say very well indeed. The only anomaly is that the soundstage is a little forward of the tube amps. Such is life. Since image is such a difficult thing to pin down as far as parts quality, layout, etc. I don't know what to suggest.
No, I didn't use any funky parts, just Dale & Panasonic resistors, Panasonic electrolytic caps in the signal path, and IRF & Motorola semiconductors. Mallory electrolytics in the main power supply. The layout was my own.

Grey

Koy · 12th November 2001, 04:03 PM

Why has Aleph relatively low gain?

vdi_nenna · 12th November 2001, 04:10 PM

If nothing else electrically or mechanically seems wrong, maybe it needs some break-in time.

Also, could it be possible you reversed an internal input connection. Out of phase sound sounds "like" stereo, but confined and muddy. Just a thought.

[Edited by vdi_nenna on 11-12-2001 at 11:55 AM]

clemence · 13th November 2001, 04:06 AM

Have you ground the –ve input? Without balanced input, the gain will be quite low if you haven’t done so.

Clemence

Koy · 13th November 2001, 10:36 AM

- input is grounded.Proper input is chosen for signal (+).
I feel loss of details in the soud, it could be the reason of flattened space. All sound seem to be concentrated to the middle without space.

leroy · 14th November 2001, 10:46 PM

Koy,

Perhaps this is the first time you hear music as pure as possible without coloration. I'm wondering what other amplifier you're comparing with to come to this opinion?

Koy · 15th November 2001, 08:22 AM

Speakers are ALR Jordan Take 2. The sound (amount of details and space) was compared with Thule Audio IA100.

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11th November 2001, 10:13 PM	#1
Koy diyAudio Member Join Date: Jan 2001 Location: Zlin	I have just finished the Aleph 30.Unfortunatelly I am a little disappointed with the sound. The soundstage seems to be very flat, with almost no stereo effect. I use separate supply for each channel, earth to one point and the channels except the toroid have nothing in common. Is this sound typical for Aleph or is there any mistake on my side?

11th November 2001, 10:48 PM	#2
GRollins diyAudio Member Join Date: Feb 2001 Location: Columbia, SC	Koy, The Aleph 2s I built image almost as well as my tube amps, which is to say very well indeed. The only anomaly is that the soundstage is a little forward of the tube amps. Such is life. Since image is such a difficult thing to pin down as far as parts quality, layout, etc. I don't know what to suggest. No, I didn't use any funky parts, just Dale & Panasonic resistors, Panasonic electrolytic caps in the signal path, and IRF & Motorola semiconductors. Mallory electrolytics in the main power supply. The layout was my own. Grey

12th November 2001, 04:03 PM	#3
Koy diyAudio Member Join Date: Jan 2001 Location: Zlin	Why has Aleph relatively low gain?

12th November 2001, 04:10 PM	#4
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA	If nothing else electrically or mechanically seems wrong, maybe it needs some break-in time. Also, could it be possible you reversed an internal input connection. Out of phase sound sounds "like" stereo, but confined and muddy. Just a thought. [Edited by vdi_nenna on 11-12-2001 at 11:55 AM]

13th November 2001, 04:06 AM	#5
clemence diyAudio Member Join Date: Jun 2001 Location: Singapore	Have you ground the –ve input? Without balanced input, the gain will be quite low if you haven’t done so. Clemence

13th November 2001, 10:36 AM	#6
Koy diyAudio Member Join Date: Jan 2001 Location: Zlin	- input is grounded.Proper input is chosen for signal (+). I feel loss of details in the soud, it could be the reason of flattened space. All sound seem to be concentrated to the middle without space.

14th November 2001, 10:46 PM	#7
leroy diyAudio Member Join Date: Oct 2001	Koy, Perhaps this is the first time you hear music as pure as possible without coloration. I'm wondering what other amplifier you're comparing with to come to this opinion?

15th November 2001, 08:22 AM	#8
Koy diyAudio Member Join Date: Jan 2001 Location: Zlin	Speakers are ALR Jordan Take 2. The sound (amount of details and space) was compared with Thule Audio IA100.

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