Hi @Cellcbern ,Audio-GD R7 HE MK 3
Yes.Thanks @Phantom-Audio. MPD-8 and Dream Transport together is a bit out of my budget. Would the USB-X4 going from my Innuos to the MPD-8 achieve most of the benefit you're mentioning?
Reconfiguration complete, burn-in continues: Large, heavy Audio-GD R7 HE Mk. 2 DAC on bottom shelf behind Pathos amp sits on Dalby Audio Lignum Vitae feet and Sound Mechanics isolation platform; Bybee Wire Dark Matter Stealth Power Purifer on the right; PS Audio Perfectwave SACD Transport on top shelf sits on ASI Topline feet and Townshend Seismic Sink air platform. Plan to upgrade the isolation platforms to Wellfloat in the near future.DAC was lightly used. Audio-GD says at least 300 hours for a new one, with improvements in sound quality up to 1000 hours. Not sure how many hours on the demo PS Audio Perfectwave SACD Transport. I2S cable is brand new (and can’t be burned in on any other device). So yes, I choose to burn them in.
And how does it sound? Is this a discrete R2R DAC or does it have a chip(s)? Nice Pathos TT amp but what are the speakers?Reconfiguration complete, burn-in continues: Large, heavy Audio-GD R7 HE Mk. 2 DAC on bottom shelf behind Pathos amp sits on Dalby Audio Lignum Vitae feet and Sound Mechanics isolation platform; Bybee Wire Dark Matter Stealth Power Purifer on the right; PS Audio Perfectwave SACD Transport on top shelf sits on ASI Topline feet and Townshend Seismic Sink air platform. Plan to upgrade the isolation platforms to Wellfloat in the near future.
Prefer the sound of R2R ladder DAC's, and Ayre and Bricasti don't have I2S HDMI inputs and can't convert native DSD from an SACD (my priority) directly to analogue (although I see that Bricasti recently announced that I2S inputs will be optional on future DAC's). The Playback Design products also lack this capability. Note that having an I2S HDMI input does not automatically mean that the native DSD bitstream can be converted directly to analogue. Bryston for example offers a DAC that accepts the DSD bitstream from an SACD via HDMI, but converts it to PCM for playback. Other than the 2X the cost PS Audio DAC (which sounded too SS for my tastes) I had only a few choices with I2S HDMI input and conversion of native DSD directly to analogue - all Chinese (Audio-GD, Denafrips, Holo Audio).Have tried many DAC's over the years. Favorites are Ayre and Bricasti, current (and probably last) DAC is Ayre QX5. I favor small, USA companies wit great service. solid engineering and build quality. These two qualify and have great sonics and features to my ear.
Wonderful, even with new (not broken in) cables and fuses. Significantly better CD playback (spatially, tonally, etc.) than my fully tricked out Modwright modified Marantz SA8005 SACD player. The Audio-GD is a discrete R2R ladder design with a built in power regenerator. Links to design details and a review (which is spot on) below. SACD playback is also improved dynamically and spatially over the Modwright Marantz player. It is a bigger, more resolved presentation that seems less tethered to the speakers. Critically for my tastes, the all SS PSA/AGD combo gives up little if anything to the Modwright's analogue tube (5687) output stage and tube (Sophia blue 274B) rectified power supply, when it comes to liquidity and naturalness of timbre and tonality. My Pathos TT as I've reported previously has been extensively modified/upgraded in consultation with the factory. Speakers are a custom upgrade (rare, exotic Fostex FT96-EX2 tweeters, top of the line Eton woofers, upgraded crossover and wiring, custom bamboo cabinet, etc.) by Greg Belman of Bache Audio, based on his augmented wide band (4" driver covers 500hz - 10khz) Metro 001 model. I will have more to say once everything is broken in and I've done more extensive head to head comparisons with the Modwight unit.And how does it sound? Is this a discrete R2R DAC or does it have a chip(s)? Nice Pathos TT amp but what are the speakers?
Note that the Audio-GD R7 HE Mk. 2 comes with specialized ACSS (current drive) output connectors designed specifically for use with Krell CAST.Tambaqui.
That’s cool though my Krell Duo 300 XD doesn’t have a Cast inputs. Used to have and enjoy using CAST with my old FPB 300cx and KCT preamp. That was magical.Note that the Audio-GD R7 HE Mk. 2 comes with specialized ACSS (current drive) output connectors designed specifically for use with Krell CAST.
FYI: https://www.stereophile.com/solidpoweramps/1206krell/index.html
I very much enjoyed reading your post(s) and applaud your diligence , I am presuming that you tried out a few different E280F triodes in the output stage of the Kassandra ?If there was one drawback, it was a lack of low bass like the Nagra. I did everything I could and just couldn't solve it
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