2. amps-preamps
  3. 162876-98013

Tweaking Cary SLP-98P F1 Preamp

As you know for SLP-98, the F1 mod is a significant improvement over the standard. I just bought one used and the stock 6SN7 tubes that come with it are horrible. So, I am waiting for WE6SN7 tubes for it. Until it arrives I want to ask people with experience with F1. I have Pass X350.5 amp driving Soundlab ESL speakers.

1. How good can it get with best tubes?
2. Some have recommended using NOS 6f8g/adapter instead of 6SN7, any thoughts?
3. After getting the best tubes, is it still worth it to direct-couple it? It is supposed to improve bass, dynamics....
128x128chungjh
three_easy_payments's avatar
three_easy_payments
2,097 posts
 
I’ve been amazed by the improvements I have gained through using Symposium Rollerblock Jr’s under my VAC tube preamp. I think the Cary preamp will benefit as well speaking as a former SLP-98P owner (not F1). My Cary came across a bit lush and lacking a bit of detail and air. The Rollerblocks really improve these aspects.
chungjh's avatar
chungjh OP
265 posts
 
Do you put them under the preamp's feet or under the chassis?
chungjh's avatar
chungjh OP
265 posts
 
How do Rollerblock Jr compared to something EVP blocks for isolation?
three_easy_payments's avatar
three_easy_payments
2,097 posts
 
You put them under the chassis.  I have not used EVP blocks but I have compared the Rollerblock Jr's to BDR cones/pads, Isoacoustics Orea's, and Golden Sound ceramic cones.  Rollerblocks were clear winner in every case.  Plus they aren't terribly expensive (compared many other products) at $225 for 3.
russ69's avatar
russ69
3,426 posts
 
I have a Cary SLP-98 F1 in my big system. I have not rolled any tubes yet. It's not the last word in pre-amps but it is still a very good pre-amp with some musical leanings. It should work well in your system but if you are looking for more accuracy and perhaps more detail a top of the line Audio Research will push you in that direction. I personally like the sound of my SLP-98 and don't have any plans to replace it.  
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