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PHONOBLOCKS -a phono preamplifi cation instrument by Sutherland Engineering OWNER’S MANUAL...
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The PhonoBlock story INTRODUCTION: The PhonoBlock is the phono preamp I designed for my home system. Its design was a self indulgence. I built it to please me. There was no consideration to accommodate any market influences. That mind-set gave me the absolute freedom to build an uncompromised and, in my opinion, the best phono preamp.
DESIGN PHILOSOPHY Another path to the same destination. Almost always, upscale designs are laden with features. More features are touted to represent ad- vancement, product differentiation AND a rational for the upscale price. The PhonoBlocks don’t play that game. Their elevated performance is achieved by NOT cluttering the signal path with deleterious features.
fill up when AC power is applied. For a design guided by simplicity, the PhonoBlock’s power supply may, at first, appear plenty compli- cated. Admittedly, it is both simple AND complex. It is a long chain of individually simple elements.
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The PhonoBlock interconnection is hidden away, protected and totally shielded. You don’t even see that cable. It is securely tucked into a machined channel in the aluminum front panel.
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You can see and even feel the difference. Some are big. The base of the PhonoBlock is laser machined 12 gage cold rolled steel. That’s about 1/8” thick. That substantial platform is protected with baked on epoxy power coat.
However, the PhonoBlocks distinguish themselves by including white noise generators --- one for each channel. White noise becomes the input signal and passes thru all stages of the PhonoBlock. You can even use the output of the PhonoBlock as a burn-in signal source for interconnect cables and the rest of your system.
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Signal path length is kept short and direct. Only the one, optimum value component is applied to the signal path. The PhonoBlock comes with 4 gain options and 7 cartridge loading values. In addition, blank plug-in boards are included for fine tuning with custom values. You are not limited to...
PHONOBLOCK specifications Cartridge Loading 50 Ohms 100 Ohms 200 Ohms 475 Ohms 1k Ohms 10k Ohms 47k Ohms blank card, can be configured for 1 to 47k Ohms plus capacitance Gain settings 45 dB 50 dB 55 dB 60 dB blank card, can be configured for 40 to 70 dB...
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