New Posts New Posts RSS Feed - Solo ultra linear diamond edition.
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Welcome to the Graham Slee Audio Products Owners Forum

 

Open to all owners plus those contemplating the purchase of a Graham Slee HiFi System Components audio product and wishing to use this forum's loaner program: join here (Rules on posting can be found here)

This website along with trade marks Graham Slee and HiFi System Components are owned by Cadman Enterprises Ltd

Solo ultra linear diamond edition.
 Post Reply Post Reply Page  12>
Author
  Topic Search Topic Search  Topic Options Topic Options
Proffessa View Drop Down
New Member
New Member


Joined: 05 Mar 2025
Status: Offline
Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Proffessa Quote  Post ReplyReply Direct Link To This Post Topic: Solo ultra linear diamond edition.
    Posted: 05 Mar 2025 at 12:38am
Hi folks, my name is Henry and I've recently acquired a solo ultra linear diamond edition with the linear power supply. It's a stunning amplifier.. Props to Graham. I'm listening to it on original sennheiser hd600 and running her from my fiio ka17 dongle.. I'm planning to get a proper dac soon (I was looking at one of Rob Watts's offerings.. Need to save some pennies first). Everytime I listen to the amp, the word that comes to mind is pristine. The stage is excellent. Even with the hd600. It kinda pushes out the close-in three bob hd600 stage lol. Crystalline clarity and complex shape to the sound. I was wondering about the circuit. What class is the topology? I took the lid off to have a look and noted a massive potted op-amp and 4 transistors. Is she class A or AB? Is the op-amp a proprietary discreet? Thanks. I love this little thing xx

Edited by Proffessa - 05 Mar 2025 at 12:41am
Back to Top
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1751 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2025 at 8:18am
Most of your questions are answered on the product info page.
Kevin
European loan coordinator, based near Toulouse, France.
Funkified SL1200 Mk.II, BB3, Firebottle Kin , ADI-2 DAC FS, Modulus 686, PD-S703, Solo UL, Triangle Antal EZ
Back to Top
Proffessa View Drop Down
New Member
New Member


Joined: 05 Mar 2025
Status: Offline
Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Proffessa Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 2025 at 11:20am
Cheers CageyH, I just took a look. Class AB. Op-amp looks like a bar of chocolate lol. Xx
Back to Top
Proffessa View Drop Down
New Member
New Member


Joined: 05 Mar 2025
Status: Offline
Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Proffessa Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2025 at 12:15am
Right, some further reading done. Am I correct in saying the op-amp is a modified dual jlh 1969 class A circuit? The reason I'm asking these questions is so I can tell my friends why it sounds like it does LOL . Cheers boyz xx
Back to Top
CageyH View Drop Down
Senior Member
Senior Member
Avatar

Joined: 30 Apr 2012
Location: Toulouse, Franc
Status: Offline
Points: 1751 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2025 at 5:34pm
No idea. I have never taken the lid off.
Kevin
European loan coordinator, based near Toulouse, France.
Funkified SL1200 Mk.II, BB3, Firebottle Kin , ADI-2 DAC FS, Modulus 686, PD-S703, Solo UL, Triangle Antal EZ
Back to Top
Proffessa View Drop Down
New Member
New Member


Joined: 05 Mar 2025
Status: Offline
Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Proffessa Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2025 at 6:13pm
Tbh there's nothing visible about the op-amp as it's potted.I was just interested in the topology. It's an amazing piece xx
Back to Top
Fatmangolf View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 23 Dec 2009
Location: Middlesbrough
Status: Offline
Points: 9695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2025 at 6:49pm
I would expect the op amp to provide the voltage gain and drive the output transistors which are probably class AB. If they are hot without music, maybe class A.
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.
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.063 seconds.