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“ The new MCX Phono Preamp optimizes the inclusion of moving coil step transformers in vinyl playback. — RON SUTHERLAND...
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Like so many people, I had assumed that But, contrary to this, the popularity of SUT moving coil step-up transformers were a relic (Step Up Transformer) is on the upswing. So from the past. Well-designed, modern phono many people were telling me how putting preamps can achieve plenty of gain at very a good SUT in front of their phono preamp low noise AND a very intimate connection...
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The Correct Question: Since customers can always add a SUT in front of any Sutherland phono preamp, this approach is already available. Many people were doing just this and enjoying the results. So the question became: Is there better way?
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The Appropriate Answer Although some preamp manufactures design First, the SUT needed to sit directly on the and build their own SUT, that was never a preamp circuit board. This decision brought serious consideration for this project. I would with it many advantages. The connections much prefer to incorporate the expertise of between the SUT secondary and preamp an established expert in the field.
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Furthermore, the range gain options is a tricky one. All solutions have of gain and loading options is virtually unlim- advantages and compromises. For the MCX ited. Along with those advantages comes I decided on the most simplified signal path —...
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Lastly, the best stereo phono preamp is actually two mono phono preamps. With a stack of two mono phono preamps, all the most subtle space and dimensionality cues are preserved. The MCX is just such a mono phono preamp.
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The MCX ships configured for a gain of 60 The MCX is designed to be powered on 24/7. dB and a loading of 200 Ohms. This will be The supplied AC power cords are just to get a good starting point for most systems. If you you started.
NOTE: the loading resistors are positioned at for 50 Ohm loading the secondary of the step-up transformer. Your MCX ships with loading set to 200 The actual value of loading applied to the Ohms. cartridge will be the resistor’s value divided...
Gain is determined by the resistor value installed in the GAIN resistor socket. Dale/Vishay RN65-style resistors are included with the following values. Ohms for 60 dB gain Ohms for 66 dB gain Ohms for 72 dB gain Your MCX ships with gain set to 60 dB.
2.5” high Power Requirements Shipping Box 88 – 264 VAC 24” wide 10 Watts each 24” deep 11” high Contact Info Phone: +1 (816) 718-7898 Sutherland Engineering, Inc. Email: ron@sutherlandengineering.com 455 East 79th Terrace, Website: www.sutherlandengineering.com Kansas City, MO 64131...
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