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Should I trade-up from my Krell KAV 300?

My system is a Krell KAV 300, Meridian G08, and Thiel 2.3 speakers. My interconnects are Creative Cable (Music Direct used to sell them for $375). My speaker cables are Synergistic Research (about) $500. My room is small and I listen at relatively low levels, mostly classical piano, some symphonies.
Should I invest in a used Krell KAV 400 or instead invest in better interconnects or speaker cables?
Thanks for your help.
runfast
timrhu
2,779 posts
 
Never heard your amp so I can't help.
I'm curious how small your room is and how the Thiels work there?
matti
114 posts
 
Completely from memory, I believe the toroid in the 400xi is very slightly larger than the S300i (800va vs 750va or something like that.) I don't believe either should be used to drive current hungy speakers. I'm honestly surprised the OP has had luck with the old 300i and Thiels....
runfast OP
7 posts
 
Hi Timrhu, my listening space is about 12 by 20 with the speakers on the long wall. The Thiel 2.3's work great - no problem. Good soundstage and good depth particulary since I upgraded to the Meridian G08.
runfast OP
7 posts
 
Hi Matti, Before I purchased the KAV 300 I phoned Thiel corporate and talked to one of the engineers. She said the 300 and the 2.3 Thiels would be a great match. She also said one of the guys at Thiel was driving the large 7.2's with the 300 and had no issues. I've been pleased with the pairing.
elberoth2's avatar
elberoth2
1,223 posts
 
Completely from memory, I believe the toroid in the 400xi is very slightly larger than the S300i (800va vs 750va or something like that.)

I have double checked, and found out that transformer sizes/ratings are as follows:

KAV-300i - 450VA/13cm
Pic 1

KAV-300iL/400xi - 750VA/17cm
Pic 2

S-300i - 750VA/18cm

(for those not familiar with metric system, 2,5cm = 1 inch)

The S-300i looks to be much bigger in size than the one used in 400xi 'cos it is potted. If we adjust the size for the extra size of the pot (1cm extra), the transformers may well be identical.
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