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Majestic DAC into Solo ULDE

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Ash View Drop Down
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    Posted: 24 Nov 2019 at 7:05pm
So as I originally worked out, the Proprius can flip an inverted signal whereas the Solo can't flip it. You'd hear a signal through both but only one would be the intended signal.

Conclusion - only a balanced receiving device can flip an inverted signal.

Edited by Ash - 24 Nov 2019 at 7:06pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2019 at 11:44am
Yes, but in quantum physics you will have to move to a part of the universe which is the inverse of planet Earth, or the music will sound inverted... Wink
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2019 at 10:58am
So the Solo is able to use an inverted signal at its input if sent from the Majestic TRS wired accordingly?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2019 at 10:52am
Using the R of the TRS balanced output means the output amplifier is the one without the common mode distortion. The T output has, and all non-inverting amps have.

The TRS can be wired to a coax cable such that R is the core and S is the braid, and the other end can connect to a phono/RCA plug.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 24 Nov 2019 at 10:38am
I just realised that both the sending and receiving equipment would need to be capable of balanced operation to allow use of single-ended -R3. Between Majestic and Proprius is ok but not possible between Majestic and Solo.

Is there any simple way to make the Proprius more suitable for driving a high sensitivity load like the MySphere 3.1? It is 15 Ohm impedance with standard cable but I have a resistive cable that can increase the impedance to 110 Ohms. The standard sensitivity is like that of the HD800 (about 96dB/mW) so pretty high although the resistive cable would drop this slightly. If I recall with the HD800, the Proprius dials were in the 8 o'clock position to make noise inaudible.

The Proprius have been great for driving the AKG K1000 but whilst they are 120 Ohm impedance (only 10 more than MySphere with cable), the sensitivity is drastically lower at 74dB/mW.

Edited by Ash - 24 Nov 2019 at 10:55am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2019 at 9:40pm
My Majestic line-out is variable like the balanced output. I will be solely using a Solo ULDE so would it be worth using the balanced TRS to output single-ended to the Solo but using the phase that my -R3 cable uses? I recall you say there was a common mode distortion advantage? This would keep the unbalanced output free if ever I wanted to monitor the output or record.

I already have a CuSat50 0.6m pair so I could try using what I already have first.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2019 at 9:17pm
1.5m Lautus from the Majestic RCA outs (your is fixed?).

That's what I use.


Edited by Graham Slee - 20 Nov 2019 at 9:18pm
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