2. amps-preamps
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InfiniCaps in Audio Research gear

Who out there has tried InfiniCaps in older ARC designs or had ARC mod your unit with these caps . I am just wondering what others have felt about the results. I have an SP9, which was discontinued before InfiniCaps were used by ARC. I am very pleased myself with the results after swithching out several WonderCaps for the InfiniCaps. Anyone else try this. What did you think when you were done? What unit did you try it with?
My next step is to attempt to put an IEC connector on it and plug in a better power cord.
maxgain

Showing 2 responses by par3n1

par3n1
40 posts
 
Hello, I have an SP 9 MKIII modified by Steve Huntley at Great Northern Sound. The difference between the stock version and mine is night and day. He did all the mods available to mine and I'm embarassed to say that I didn't bother to find out the names of all the parts.I suggest that you go to his web site and there you will be able to contact him and get the truth about how a SP 9 can sound and what it takes. He also did mods on my Music Reference RM 9 MK II. Now I can listen to music and forget about the system almost. I say almost because I love the hobby and want to stay abreast of whats out there. Thanks audiogon.
par3n1
40 posts
 
Maxgain,
First was the power supply and an iec connection. The power supply mod took away what I thought was the brightness with the sp9 while leaving the incredible detail. I know caps were replaced and I am not sure where. Steve could give you all this info. I only use the phono section of the preamp and I know he did some mods in that area and finally he did the attenuator. That made a huge difference with the openess and three dimentionality. MOre air also. As far as cost I suggest that you talk to Steve about that as I did this work piece meal, cost me shipping up the ----- but that is the way it is. Steve is a great guy to deal with and the results are worth every penny. Oh the very last thing I did was to put 7308 tubes , nos Siemens and Steve set the voltage to match the tubes. Good choice of tubes.
Hope this helps and I strongly suggest that you talk to Steve if you have a serious interest in mods to your SP9.
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