Ryan has built the Muffsy Phono Preamp, and wrote about it on his blog. Thanks for the great review Ryan!
He offers up some beautiful pictures of his build, and writes about the whole building experience.
I love to see the result of people's work, here are a few pictures of the Muffsy Phono Preamp built by customers.
Muffsy SMD Edition
This first one is really cool. It's built by Ivo, who wanted a version with SMD components. He did all the work, with a few pieces of advice from muffsy.com, and got the...
Total Harmonic Distortion: 0.00081%Total Harmonic Distortion + Noise: 0.01935%Signal to Noise Ratio: 82.3 dB (0 dBV output)Intermodulation Distortion: 0.0195% (ITU-R)
Dynamic Range: > 110 dB (THD+N < 1%)
RIAA Compliance: +/- 0.15 dB (20-20.000 Hz)
RIAA Equalization: Passive
Gain at 1 kHz: 32-43 dB, in four steps
Input Impedance: 17k-150k ohm, in fifteen steps
Input Capacitance: Optional
PCB Size: 84 x 56 mm
Total Harmonic Distortion: < 0.1%
Total Harmonic Distortion + Noise: < 0.1%
Signal to Noise Ratio: 71.8 dB (rel to 0.5 mV input)
Intermodulation Distortion: 0.001% (ITU-R)
Dynamic Range: > 110 dB (rel to 0 dBV)
Frequency Response: +0 / -0.1 dB (20-20.000 Hz)
Gain: 24.6 dB
Input Impedance: 50-300 ohm, in four steps
PCB Size: 84 x 59.4 mm
Measurements at 1 kHz, 0 dBV output, if not stated otherwise
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