F5 power amplifier - Page 458

rmgvs · 22nd July 2009, 05:27 PM

Thanks Nelson. It's working now for around 24 hours with the 100 Ohm feedback resistors (all other thing being equal). Sound is fine and offset is shifting around a bit (when everything is at right temperature, it's within plus and minus 50 mV of so, no problem with me). I've not done serious listening yet, but first impressions are of a more modern, more snappy, more open sound than I remember from the aleph 30 and mini-A I used years ago (which was slightly more warm, but for my taste too laid-back and lazy, kind of diffuse (in contrast to 'pinpoint') highs sometimes). Yes, strange audio-mumbo-jumbo, not too easy to describe what you think you hear.

Nelson Pass · 22nd July 2009, 06:18 PM

More snappy would be about right.

Tea-Bag · 22nd July 2009, 07:16 PM

Quote:

Originally posted by pro
Last night I tried to make comparative tests between the Zen V4 and F5, using a very well reviewed 5" full range of Italian production. The timbre of the two is slightly different, due to the high output impedance of the V4 (80 hom), but the thing that left me surprised, is that the soundstage of the F5 is at least 15" higher of the Zen one. Could someone try to explain me, the reason for this?
Both ampli with same cable, pre and cd player.
Thank you.

Have not listened to the V4,
But the F5 does well with full rangers IMO, giving a very good soundstage. it is a very good amp.

jackinnj · 22nd July 2009, 07:41 PM

Quote:

Originally posted by Nelson Pass
More snappy would be about right.

Perkier

Zen Mod · 22nd July 2009, 11:40 PM

Quote:

Originally posted by jackinnj

Perkier

rickmcinnis · 23rd July 2009, 01:28 AM

certainly working for THAT dog.

I really like that dog.

Renron · 23rd July 2009, 02:23 AM

Mate,
That's naught a doog.

npapp · 23rd July 2009, 02:57 AM

Does anyone have a parallel output device F5 board artwork they are willing to share? I remember seeing a board pic some where but after scan 30 pages it's time to just ask.

rickmcinnis · 24th July 2009, 11:19 PM

If this has been covered please accept my apologies fro laziness.

I want to use the F5s in a bi-amplified installation.

I am using TAD 4001's which are nominally 15 ohms.

Usually this is either benign or advantageous for an amplifier. Is that case, also, with the F5.

Thanks for any opinion offered.

Nelson Pass · 25th July 2009, 12:11 AM

Yes, benign.

22nd July 2009, 05:27 PM	#4571
rmgvs diyAudio Member Join Date: Apr 2001 Location: Netherlands	works fine indeed Thanks Nelson. It's working now for around 24 hours with the 100 Ohm feedback resistors (all other thing being equal). Sound is fine and offset is shifting around a bit (when everything is at right temperature, it's within plus and minus 50 mV of so, no problem with me). I've not done serious listening yet, but first impressions are of a more modern, more snappy, more open sound than I remember from the aleph 30 and mini-A I used years ago (which was slightly more warm, but for my taste too laid-back and lazy, kind of diffuse (in contrast to 'pinpoint') highs sometimes). Yes, strange audio-mumbo-jumbo, not too easy to describe what you think you hear.

23rd July 2009, 01:28 AM	#4576
rickmcinnis diyAudio Member Join Date: Jun 2006	Who says smoking doesn't make you look cool certainly working for THAT dog. I really like that dog. __________________ Rick McInnis

23rd July 2009, 02:57 AM	#4578
npapp diyAudio Member Join Date: Feb 2006 Location: New Jersey	Parallel Output Does anyone have a parallel output device F5 board artwork they are willing to share? I remember seeing a board pic some where but after scan 30 pages it's time to just ask.

24th July 2009, 11:19 PM	#4579
rickmcinnis diyAudio Member Join Date: Jun 2006	High Impedance speakers and the F5 If this has been covered please accept my apologies fro laziness. I want to use the F5s in a bi-amplified installation. I am using TAD 4001's which are nominally 15 ohms. Usually this is either benign or advantageous for an amplifier. Is that case, also, with the F5. Thanks for any opinion offered. __________________ Rick McInnis

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22nd July 2009, 06:18 PM	#4572
Nelson Pass The one and only Join Date: Mar 2001	More snappy would be about right.

25th July 2009, 12:11 AM	#4580
Nelson Pass The one and only Join Date: Mar 2001	Yes, benign.

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