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General question about preamps with Proprius amps
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DT999 View Drop Down
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    Posted: 18 Jun 2021 at 2:08am
I have recently been considering a change away from my current integrated amp, and to use 2 x Proprius amps to drive my speakers with an appropriate preamp.

Ideally I would love to use an all GSP system and the Majestic as a pre amp, but here is where I run into some difficulties due to the required connections of my system.

I have 2 turntables, one run through an Accession M and the other through a Reflex M. 

I also have a CD transport and external DAC. No problem there as I could use the Majestic as the DAC and preamp.

However I also on occasions use headphones and need to connect a headphone amp (looking longer term at the Solo ULDE), which would be connected from the pre-out. But I also have 2 x subwoofers connected in my system, which I currently also run from a pre-out.

So my problem here is that the Majestic only has one analogue line in and one line out; whereas for my system as I currently have it I would need 2 of each. 

So my questions are, is there anyway of using a Majestic with my set up as it is? 
Or if I look at other preamps, how will they work with the dual Proprius amps? 
Should I be looking at active or passive preamps etc? 
What other sort of things should I consider?

At this stage I am researching, and I have the opportunity to trial things through the loaner program as I did with the GSP Phono stages, but I need to understand how the system might all go together.

Appreciate your thoughts and insights.

Cheers
Derek
Rega Planar 3 > Accession MM / Thorens TD160 > Reflex M > Modwright LS100 tube preamp > Solo ULDE / Proprius > Monitor Audio Silver 500 / 2 x SVS SB1000 subwoofers
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ICL1P View Drop Down
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I run three turntables with one phonostage (Accession) into my Majestic. I use a switch box from dodocus.de.
Ifor
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Reflex M & ACCESSION M, CuSat50, Majestic DAC, a Proprius pair.
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Points: 16298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2021 at 8:15am
Originally posted by ICL1P ICL1P wrote:

I use a switch box from dodocus.de.

...which you could use to extend your inputs.

Ermm I'm working on the rest.
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DT999 View Drop Down
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Originally posted by ICL1P ICL1P wrote:

I run three turntables with one phonostage (Accession) into my Majestic. I use a switch box from dodocus.de.

Thanks, that makes sense. 

From your description you obviously run your turntables to the switch and then from switch box to Accession. Do you find the box adds any noise with small cartridge signal or the extra RCA cable length etc. affects anything? 

I could run both of my phono stages to a switch box, but doing it your way mans I can remove a box (and even sell on the Reflex to offset costs)
Rega Planar 3 > Accession MM / Thorens TD160 > Reflex M > Modwright LS100 tube preamp > Solo ULDE / Proprius > Monitor Audio Silver 500 / 2 x SVS SB1000 subwoofers
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DT999 View Drop Down
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Originally posted by Graham Slee Graham Slee wrote:

Originally posted by ICL1P ICL1P wrote:

I use a switch box from dodocus.de.

...which you could use to extend your inputs.

Ermm I'm working on the rest.

Thanks Graham, it will be interesting to see if there is a work around.
Rega Planar 3 > Accession MM / Thorens TD160 > Reflex M > Modwright LS100 tube preamp > Solo ULDE / Proprius > Monitor Audio Silver 500 / 2 x SVS SB1000 subwoofers
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Points: 2341 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ICL1P Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2021 at 1:50pm
Originally posted by DT999 DT999 wrote:

Originally posted by ICL1P ICL1P wrote:

I run three turntables with one phonostage (Accession) into my Majestic. I use a switch box from dodocus.de.

Thanks, that makes sense. 

From your description you obviously run your turntables to the switch and then from switch box to Accession. Do you find the box adds any noise with small cartridge signal or the extra RCA cable length etc. affects anything? 

I could run both of my phono stages to a switch box, but doing it your way mans I can remove a box (and even sell on the Reflex to offset costs)
I’ve not noticed any detrimental effect. The Dodocus box I have (Model 248) is designed for this purpose. Best to check with Konrad.
Ifor
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Reflex M & ACCESSION M, CuSat50, Majestic DAC, a Proprius pair.
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Points: 481 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Sylvain Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2021 at 2:54pm
This issue is also my endeavours for last 12 months  with Two Thorens but saw a QED switch box at Richer Sounds .....but will wait for further from Graham.....

I use Proprious Mono's and had harassed Graham on a Passive Pre Amp and mine is ready with a Good Potentiometer in a  Box .....The Proprius is parked as advised on literature and my DAC electronic Pre amp is good but temperamental and 46 clicks resistors in a box add to noise but in ' shunt' design barely noticeable provided low K.

Electronic Pre amp with CD' output of 2.8 V cause me to opt for a separate passive.
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