Macallan Posted November 4, 2005 Share Posted November 4, 2005 I have narrowed my decision to either the the B&K AVR 507, 150x7 or the B&K Reference 50 paired with the B&K 125.7. B&K claims that the AVR 507 uses the exact same preamp as the Reference 50. Buy going with the AVR I would gain 25wpc and it would save me much needed space in my cabinet. Are their any downsides to the AVR route? I will be using the B&K 200.2 to drive the RF-7 mains and the receiver to drive the rest. I do not want to go the 200.7 route because i don't have the space and can't justify the cost when i use my system for 80% music. Quote Link to comment Share on other sites More sharing options...
MrMcGoo Posted November 4, 2005 Share Posted November 4, 2005 The AVR-507 with series 2 mods is excellent. The amp section is inbetween the 125.7 and the 200.7. If you plan on keeping the receiver for a long time, it would be reasonable. Otherwise, separate amps will last 20 years while preamps may last 3 to 5 years before they become obsolete. Preamps and receivers are just like personal computers that are highly specailized for multi-media processing. The biggest difference is that you cannot change the software and ports to run the current sound and video formats. Hence, periodic upgrades are needed. Why change amps every time the processor is obsolete? Separate processors may sound a bit better due to the fact that the low level signal is kept farther from the amps big power supply and its noise. Bill Quote Link to comment Share on other sites More sharing options...
Macallan Posted November 4, 2005 Author Share Posted November 4, 2005 Thank you, and after further investigation I am going to go with the separates, it seems that I cannot power my "B" speakers on my deck with the AVR -507 without an additional amp. Quote Link to comment Share on other sites More sharing options...
Hunt Posted November 4, 2005 Share Posted November 4, 2005 Hey Mr. McGoo, you seem very knowledgeable about this stuff. I'm new to the amp world, as I have just lost money in the past by buying a new AVR every couple of years. I'm using my Denon as a pre/pro now with my new amp. Do you think I would appreciate any significant performance increase by getting the B&K preamp, or just stick with what I have for now and wait until my current AVR is obsolete? Any thoughts? Thanks. Quote Link to comment Share on other sites More sharing options...
MrMcGoo Posted November 4, 2005 Share Posted November 4, 2005 Hunt, You would probably hear an improvement with a dedicated preamp, but do not buy one now. New surround formats will be out early next year. wait till late 2006 to upgrade processors/receivers when instant obsolescence is less of a problem. Next generation auto room correction will be available as well. Bill Quote Link to comment Share on other sites More sharing options...
Hunt Posted November 5, 2005 Share Posted November 5, 2005 Thanks Bill. Sounds like a good plan. Also, gives me some time for the wife to forget about the last purchase! Quote Link to comment Share on other sites More sharing options...
BobbyT Posted November 5, 2005 Share Posted November 5, 2005 I would just like to add that B&K amps sound wonderful with RF7s Quote Link to comment Share on other sites More sharing options...
SteelerFan Posted November 5, 2005 Share Posted November 5, 2005 I would just like to add that B&K amps sound wonderful with RF7s I agree.[] Quote Link to comment Share on other sites More sharing options...
Speedball Posted November 5, 2005 Share Posted November 5, 2005 ........[] Quote Link to comment Share on other sites More sharing options...
bookman Posted November 6, 2005 Share Posted November 6, 2005 Good thread. I like B&K myself and power my Klipshorns with a ST-140, sounds clear and tight. Classical strings are "in the room". Quote Link to comment Share on other sites More sharing options...
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