DENAFRIPS DAC ---- Owner Impressions, Feedback, General Discussion, Questions and more....

bluewolf

Did you try coming out the Omnigon's tape out into the Lightspeed then into the poweramp.? So you only use the Omingon's phono stage?.

As that's what my other TAD customers do with their Lightspeed's and their phono preamps, they say this way the sound is to die for, much more transparent and dynamic, with a black ground, so black you think the systems switch off in between notes and silent passages..

Cheers George   

@bluewolf   Your write-up and system and music photos look terrific!

https://www.denafrips.com/single-post/2018/05/12/DENAFRIPS-Terminator-Jay%E2%80%99s-Audio-CDT-3-MK2-...

@bluewolf 
I am using your very nice Lightspeed in my Rey Audio Kinoshita speaker system

Wow, that's a pretty esoteric looking second system, what are the Acoustical Systems battery amps and their input impedance. I can't find anything on them?

 https://cdn.head-fi.org/a/10109613.jpg

david_ten @bluewolf  Your write-up and system and music photos look terrific!

Ditto on this.

Cheers George

Hi George, @georgehifi

Thanks for your kind words on my system and review. And thank you for the excellent Lightspeed Attenuator.

My understanding is that the Acoustical Systems battery amps never went into production and there were only a handful of pairs made. I guess the company wants to concentrate on analog front-end components and phono preamps. I was told that their input impedance is 100k ohms and that there is only one MOSFET per mono amp. Your Lightspeed Attenuator is sounding very nice feeding these amps. I very much appreciate that the Lightspeed is outstanding value for money, and so I understand the reason for the wall wart PS that is supplied. My My next point is in no way intended to be a criticism given the outstanding value proposition that the Lightspeed is, but rather the opposite as to what an excellent design the Lightspeed is. I would like to note that it scaled up beautifully with the custom silver wired power supply unit I managed to get for it.

All the best!

bluewolf

Thanks for your kind words on the Lightspeed, I noticed you have the dual mono version, good choice as you can perfectly centre the sound stage image regardless of speaker position or room abnormalities.
Battery is even better again for the Lightspeed, I recommend this Lithium-Ion rechargeable one, you can get up to 2 weeks listening in between a recharge, it has the blackest back ground (as if your system has switched off in between notes/tracks)
https://www.ebay.com/itm/Portable-DC-12V-2In1-Rechargeable-8000Mah-Li-ion-Battery-Pack-US-EU-UK-Adap...

Long time ago an amp that used Nelson Pass Class-A circuit used battery, which was highly regarded call the NEW-Class-A CD33 or something.

Cheers George