Hello friends,
I observed a really odd and interesting behaviour that I thought I'd share with you. I recently started to explore R2R/NOS DACs and came across Metrum. They offered me a home audition of Onyx which I happily opted for.
Setup
Samsung DVD player (came as free gift with my Samsung TV)
DACs - Topping D50, Onyx and Inbuilt DAC of DVD player
Lyrita DHT 2A3 Pre and Power
Rethm Maarga
Interconnects - Belden 1505F with Canare connectors, decent optical/coax cables
HDMI Switch with optical+coax output. Helps extract digital audio from multiple devices like Streamer/Chromecast/DVD player
No special main power gadgets
Wiring to allow quick A/B comparison in real time.
There are four combinations
#1 - Internal DAC of the DVD player - should sound the worst.
#2 - Onyx Coax - should be the best.
#3 - Onyx Optical via HDMI switch - should show any degradation due to the HDMI switch. I switch between Opt/Coax on Onyx
#4 - Topping Coax via HDMI switch - compare with Topping (should have been second best)
Tracks used (all CDs)
Unfortunately, I did not find ANY difference in any of the above. Luckily the loudness level on all inputs is the same. You can't tell when the preamp input switch is flipped. The Onyx should've blown away all DACs (especially the one in the DVD player).
Also,
I believe the amp/speaker combo is plenty resolving and also that Onyx would be better hardware than the Samsung or Topping.
Do you agree this is odd?
I observed a really odd and interesting behaviour that I thought I'd share with you. I recently started to explore R2R/NOS DACs and came across Metrum. They offered me a home audition of Onyx which I happily opted for.
Setup
Samsung DVD player (came as free gift with my Samsung TV)
DACs - Topping D50, Onyx and Inbuilt DAC of DVD player
Lyrita DHT 2A3 Pre and Power
Rethm Maarga
Interconnects - Belden 1505F with Canare connectors, decent optical/coax cables
HDMI Switch with optical+coax output. Helps extract digital audio from multiple devices like Streamer/Chromecast/DVD player
No special main power gadgets
Wiring to allow quick A/B comparison in real time.
Code:
Samsung DVD player
1 |--- RCA Output -----------------------------------------------------> Lyrita Pre/Power -> Maarga
2 |--- Coax Out ---------------------------------> Onyx (Coax) |
3 | |--- Optical ---> Onyx (Optical) |----> Lyrita Pre/Power -> Maarga
|--- HDMI Out ---> HDMI Switch |
4 | |--- Coax ------> Topping D50 --------> Lyrita Pre/Power -> Maarga
There are four combinations
#1 - Internal DAC of the DVD player - should sound the worst.
#2 - Onyx Coax - should be the best.
#3 - Onyx Optical via HDMI switch - should show any degradation due to the HDMI switch. I switch between Opt/Coax on Onyx
#4 - Topping Coax via HDMI switch - compare with Topping (should have been second best)
Tracks used (all CDs)
- Hotel California (Eagles)
- Take Five (Dave Brubeck)
- Indian Classical (Tansen)
- Keith don't go (Nils Lofgren)
- Nardis (Patricia Barber)
Unfortunately, I did not find ANY difference in any of the above. Luckily the loudness level on all inputs is the same. You can't tell when the preamp input switch is flipped. The Onyx should've blown away all DACs (especially the one in the DVD player).
Also,
- Tried Exposure 2010S2 amp instead of Lyrita Pre/Power. The amp signature is different but DACs but no difference between DACs
- Asked a couple of others to listen and they couldn't tell either
- Tried a Pioneer DVD player but its direct output was louder than the others so not a fair comparison. But no difference between Topping and Onyx
I believe the amp/speaker combo is plenty resolving and also that Onyx would be better hardware than the Samsung or Topping.
Do you agree this is odd?