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A most ridiculous HPA test
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Graham Slee View Drop Down
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    Posted: 09 Sep 2011 at 4:05pm
This is what many could consider a most ridiculous headphone amp test...

Putting the output into a 32 Ohm load (the yellow coded cable) to mimic the load of low impedance (Grado-like) headphones...



Into a couple of Proprius mono blocks (sneak preview of a prototype with latest heatsink)



And thence into a pair of extremely revealing Harbeth (BBC workstation) M20 monitors.



I'll expand the topic more after the weekend.
That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps
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Points: 64 		Post Options Post Options   Thanks (0) Thanks(0)   Quote shamu144 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2011 at 11:09pm

I sometimes use the UL headphone line out to drive a mini integrated system (Philips MCM760) through the AUX input. Would that possibly damage the UL because of impedance mismatch ?

Looking forward to reading your conclusions on this experiment !
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Points: 9695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2011 at 11:19pm
Originally posted by shamu144 shamu144 wrote:

I sometimes use the UL headphone line out to drive a mini integrated system (Philips MCM760) through the AUX input. Would that possibly damage the UL because of impedance mismatch ?

Looking forward to reading your conclusions on this experiment !
I would guess it would do no harm to either piece of equipment. How did it sound Shamu144?
 
Out of curiosity has anyone tried connecting speakers to the output of a Solo or Novo? I would imagine the 100mW or so into 8 Ohm would limit the pleasure but please share?
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Points: 16314 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2011 at 8:56am
The output of the Solo UL (and SRGII) is short circuit proof.
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Originally posted by Fatmangolf Fatmangolf wrote:

I would guess it would do no harm to either piece of equipment. How did it sound Shamu144?
 
Thanks, it is good to know I am safe using the UL that way.
 
It does sound bloody brilliant this way, within the limitations of course of such a playback system (surprisingly well balanced for a 200 euros Philips mass market mini hifi stereo!!). Before the UL, I would use the headphone line out of the Lavry DA11 to drive the AUX input, and frankly, the improvement with the UL is obvious (more body and weight, PRAT, timing), even on such a basic system. That was a revelation.
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Points: 9695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 29 Sep 2011 at 8:15pm
Wow, it shows UL is a brilliant development of the ubiquitous op-amp.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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