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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
audioman4
174 posts
 
I have the ls 7 with the infinicap upgrade.. I switched from another ls7 for 2 reasons,, the caps and the silver face i wanted. The sound is much more 3 dimensional and the bottom end became much more accurate..
I have yet to switch the pc on the unit yet... but it is in the works..
The ARC gear works well with the infinicaps...
I also upgraded the tubes to a set of 1970 sovteks from upscale audio..
again, a wonderful upgrade.
I love the preamp..
maxgain OP
526 posts
 
Par3n1, thanks. The web site says very little but I understand the Steve does great work. Please tell me, if you are able or willing, every think you can about what was done and If I may ask what it cost? I love the sound of mine now but am sure that there is more I can get from it. The sound with the InfiniCaps is more realistic in many ways. But as I mentioned there is still the matter of the stock fixed power cord for starters. I have liked the sound of the CPCC units and can envision what that may do for the system.
maxgain OP
526 posts
 
Audioman4,
Can you give me a list of the InfiniCap values and voltages in your LS7, if I remember right there are only 4 of them on the board. A friend of mine has an LS7 and is interested in trying the InfiniCaps in his. Thanks for the reply.
johnj
27 posts
 
Re: Steve Huntley...... he is the type of person who likes to talk with his potential customers.
Give him a call. He will be more than happy to discuss his work and how it can improve your specific unit.
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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