Have run the X250.5 with modded Revel F208s and stock Audio Physics Virgos. Used tube preamps - Sachs, Supratek and Airtight. Great power, presence, tonal colors. My first impression of this amp has remain unchanged. That is, "PassLabs sure the hell knows how to do solid state amplification". I have the Parasound A21+ amp. Very nice sound after 50 hours of playing but not to the level of the PassLabs X250.5.
Can you share your older Pass Labs experiences?
I had a Pass unit several years ago, and really liked the old Nakamichi SR-3a I had. What can you share as to a good used Pass integrated or pre/power to consider? Would be using them with a small set of Quad speakers or one of two Magnepan 1.7 or 3.7. Thanks
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jusam Earlier Threshold that Pass designed were the best for me, as they were Bi-Polar output stages (not mosfet) and had far better current delivery. Plus you didn’t get what some describe as the "Mosfet Mist" sound. Here’s one of his ground breaking Threshold monoblocks https://www.hifinews.com/images/121pass.side1.jpg And the classic affordable favorite Threshold 400A https://img.canuckaudiomart.com/uploads/large/1304549-453012b3-threshold-400a-classic-nelson-pass.jp... https://img.canuckaudiomart.com/uploads/large/1923065-a7270a30-treshold-40oa-stereo-power-amplifier-... And then even earlier was the best sounding but low power True Class-A 40w which I later expanded to a huge 150watter and used a self contained water cooling system in it. (it was still a two man lift) https://www.passdiy.com/project/amplifiers/the-pass-a-40-power-amplifier Here are some diyer’s pics that built the A40 as it is https://www.google.com/search?q=Pass+A-40&sxsrf=ALeKk03A2Y6jaZSbEKpdCMn2v_BDs8AY3g:1626554188096... Nelsons speakers https://audioxpress.com/assets/upload/images/DiddenPhoto1Web.jpg Cheers George |
Thank you all for your thoughts and input. I have been on AudiogoN since the beginning and have had great success with sales, purchases and conversations with users. I did have one very bad experience that became a stalker and I then had to drop my account and start over with a new I.D. c'est la vie. |
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