Graaf GM 50B
Fully Balanced Integrated Amplifier (2003)
Power output: 50 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.3%
Input sensitivity: 500mV (line)
Signal to noise ratio: 83dB (line)
Speaker load impedance: 4Ω to 8Ω
Valve complement: 4 x 6DJ8, 2 x 6H30, 4 x 6550
Dimensions: 450 x 160 x 500mm
If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.
If you have additional documentation please consider donating a copy to our free archive.
Reviewed Aug 16th, 2014 by Lefty Boots
I have owned this amp for around ten years and have never been able to better it. Auditioned top of range Naim, also Leema, EAR and Chord amps and never got anywhere near the fluid and realistic sound that this amp produces. I go to a lot of live gigs and know what 'live' music sounds like and believe me this amp is probably as close as it gets to 'live' in a domestic environment. Currently used with Usher BE 718s speakers and leema Antila CD player which seem to work well with the Graaf and quite frankly don't think I could better the sound without taking out a very hefty mortgage. Can't ever see myself selling it. Great site by the way.