aball

Responses from aball

Input voltage and your poweramp
I don't think your problem has anything to do with voltage. I believe your heat sinks are screwed to the chassis too tightly and so they are ringing (think tuning fork). This wouldn't be a Krell, would it? I know some Krells do that. The best way ... 
Personal Preamp Evolution.
Krell KAV250, McIntosh C712, Rogue Magnum 99, Audio Research LS3b, CJ PV10a, Belles GR8, McIntosh C712 (#2), Classe CP50, BAT VK3i, Cary SLP-98, McIntosh C42. I also currently own a Kora Crescendo. My time frame is 10 years.Arthur 
what do I change or upgrade?
Try toeing your speakers in such that they are pointing directly at you. If the problem is beaming or reflections, this should cure it.If it doesn't, my take on your problem is that it is your CD player. The Lector is too soft and warm for your sy... 
Do all Passive preamps exhibit this trait
It is all system dependent but the Belles GR8 passive I had was also dull in the treble. I guess I could have found a bright amp to mate with it but I felt that two wrongs didn't make it right. I also tried running two of my amps direct since they... 
TUBE GAIN
Indeed, it would be best to check with Quicksilver first. But keep in mind that some designers will object to you tampering with their perfection, despite the fact the swap will not damage the circuit. The two types are too similar for dire conseq... 
TUBE GAIN
If you prefer the gain of the 6922, you can try using 5751 instead of 12AX7. The 5751 is a direct replacement with an amplification factor of 70 (not as low as the 6922 but still better than 100). Besides, all of the 5751 I have tried sounded fant... 
Best 2 Channel Integrated Used for under 750?
Myryad Z140 is stellar for the price. The Audio Refinement Complete is also a great recommendation. Check out the Creek 5350SE as well - it is much better than the NAD 320BEE IMO.Arthur 
MIT AVt 1 speaker cables
I love mine. I've used them on several amps and several speakers and have always appreciated their stable imaging and lively dynamics. They slightly favor treble over bass so they aren't an ideal match with everything - but then again, that applie... 
proac sound vs coincident sound
Efficiency is two parts essentially - sensitivity and impedance. ProAcs do not have the advertised sensitivity - it is lower in actuality. However their impedance is generally excellent (i.e. high) so they tend to be a great match with tube amps. ... 
Best CD player $500 or less used
With the gear you have, the 1072 will sound mechanical IMO. I just didn't care for that player at all. I had lots of trouble getting real music out of it in my system, as well as a local buddy's system. Ditto the 640C v2. They are both too dry and... 
Cary SLP-98 v. Manley Shrimp
What? No more S2K??I had an SLP98 and it was fantastic. If I didn't already have 18 tubes in my system, I would have kept it. Its imaging was totally captivating and its treble was always natural. I am not familiar with the Shrimp but I agree the ... 
McIntosh MC352 or MC402?
Better value is obviously the 352. The 402 has a bit more dynamics and detail compared to the 352 - but you will only hear this difference if the rest of your system is resolving enough....The 352 uses light bulbs which will need replacement every... 
Anyone been to United Home Audio?
We had a great time there. We went for about 3 hours to listen to MBL gear. They left us alone in the room to listen for as long as we wanted. They showed us their other gear too and were friendly overall. They are not big talkers, which can be go... 
Preamplifier power supply
Oversize is a relative term. If a preamp has a high-power amp's supply, then yes, based on power it would be overkill.As an EE that specializes in power supply design, my personal opinion is that a large power supply is a good thing. The reason is... 
choice between a Classe SA220 or Mac MC500?
I assume you mean CA2200. The MC500 will be much softer and less detailed than the Classe IMO. They will sound very different. However the MC500 will be able to drive any speaker, even your tough ones. Which is better will depend on your tastes an...