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Elevator EXP |
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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 8960 |
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I haven't tried 2 PSU1's but I am very happy with the setup now sharing a PSU1 like yours. There is no hum, lovely sounding music of vinyl, and plenty of dynamics. I made up a Y lead like your one plus a decent earth to earth cable with an eyelet at each end. I tried the setup with and without that extra lead and preferred with. Very little in it.
I suspect the requirements for two preamplifiers like this will be different from a preamp and a head amp. My previous shared PSU1 was a Genera and Solo UL driving a pair of LCD-2's which are relatively insensitive at about 91dB/mW into 50 ohms. It was only an issue at high volumes, and then just a little compression on transients like drums or bass lines being slightly softer. The PSU1 is very good. I expect no problem sharing it to drive a Reflex M and Novo with a very nice pair of reasonably sensitive headphones like the HD800. Your listening test (shared PSU1 better than PSU1 and SMPS) is pretty convincing for me. The only way to test your idea is to borrow a second PSU1 and allow a little time for the amp to settle down again before listening. My advice is enjoy what you have for a while, so you know the sound well before any comparisons. I will try to follow that advice myself. Edited by Fatmangolf - 01 Aug 2013 at 10:44pm |
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Jon
Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
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tg [RIP]
Moderator Group Joined: 19 Jan 2008 Location: Sydney Status: Offline Points: 1866 |
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Question for clarification here Jon, the dedicated earth lead is connected between the Reflex and the Exp ? or how?
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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 8960 |
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Earth post to earth post Tony.
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Jon
Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 8960 |
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As an experiment I now have an EXP connected to the Revelation M, and a separate Reflex M all powered from the same PSU1. It is working, sounds wonderful, and has no hum when my passive volume is on full feeding the Proprius amps. I found one negative line from the PSU1 worked best with links between the ground/casework of the three stages using multi-strand copper cable.
This reminded me just how good these GSP preamps are at letting the music sound through. |
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Jon
Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
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