Thanks all! It has been a fun project
Advice on what preamp to select.
Hello
I picked up two Adcom GFA565 Power Amps recently and would like to get a newer preamp to go with these. Currently have a Crown IC150. Have found a Audio Research SP-9 MKII for about $1100 but am considering also the following: Macintosh C series in the range of the 34V or newer, or purchasing a Mac MX series preamp.
The MX 130 looks to have decent reviews just being used as a solid preamp for stereo use and has a phono section which I need. I know this is a question with no best answer but anyone have experience that they are willing to share?
Thanks
Kent
I picked up two Adcom GFA565 Power Amps recently and would like to get a newer preamp to go with these. Currently have a Crown IC150. Have found a Audio Research SP-9 MKII for about $1100 but am considering also the following: Macintosh C series in the range of the 34V or newer, or purchasing a Mac MX series preamp.
The MX 130 looks to have decent reviews just being used as a solid preamp for stereo use and has a phono section which I need. I know this is a question with no best answer but anyone have experience that they are willing to share?
Thanks
Kent
Showing 10 responses by torchlake99
Thanks for the responses! The Adcom's are mono block amps, not certain what arrangement might be best. speakers are DQ10's with the DQ sub and crossover. They do like clean power so I am trying this configuration this system will not be used for AV purposes. Just music, turntable and cd's are the source Like the idea of the SP9 as a hybrid preamp. Reading the phono section is very good. Your thoughts and ideas? I'm sure there are many preamps that would work well. Trying to keep the cost of the preamp around $1200 or less. The Mac MX series are affordable because a 5 year old model in the AV world is a dinosaur and cost are reasonable. I have been reading that people are happy with the MX just as a stereo preamp. Any advice would be helpful |
copied this from review on the amp The Adcom's input impedance at 1kHz was 47k ohms, and its output impedance was uniformly low—ranging from 0.02 ohms from the bass to the upper midrange and increasing slightly to 0.03 ohms at 20kHz. The gain of the GFA-565 was 27.1dB into the unbalanced inputs. I found that the three gain settings on the balanced inputs—0dB, +4dB, and +6dB—actually gave quite different readings. The +4dB setting was actually 8dB down from the 0dB, the +6dB setting was down 14dB from the 0dB. Unweighted noise was 70dB below 1W into 8 ohms Read more at http://www.stereophile.com/content/adcom-gfa-565-monoblock-power-amplifier-measurements#o0IIiIqQ6YtF... |