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Congratulations on your purchase of the conrad-johnson MV50 ampli-
fier. You have acquired one of the finer pieces of musical reproduction
equipment available today. You will find it to be capable of reproducing
with great accuracy the dynamics, tonalities, and textures of live musical
performances. The design and materials have been carefully selected
to yield years of unvarying excellence.
Please take a few minutes to read this manual so that you will better
understand the featues and capabilities of your MV50.
MV50 Owner's Manual
1
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Summary of Contents for Conrad-johnson design MV50
- Page 1 Congratulations on your purchase of the conrad-johnson MV50 ampli- fier. You have acquired one of the finer pieces of musical reproduction equipment available today. You will find it to be capable of reproducing with great accuracy the dynamics, tonalities, and textures of live musical performances.
- Page 2 MV50 1. conrad-johnson design, inc. warrants to the original owner that the conrad-johnson MV50 will be free from defects in material and workman- ship for a period of three years from the date of original purchase. 2. During the warranty period, conrad-johnson will repair defective units...
- Page 3 Proper registration of the warranty is important! It will enable us to inform you of any alterations in the design of a given model and of any new products we offer which are likely to be of interest to you. MV50 Owner’s Manual...
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Page 4: Circuit Design
Accord- ingly, the audio circuit of the MV50 is remarkably straightforward. A single triode input amplifier is direct coupled to a cathode follower. This arrangement offers exceptional phase linearity. - Page 5 For more restricted installations, cooling fans are essential. The front panel of the MV50 will fit in a standard 19" equipment rack and is designed to carry the weight of the unit so that it may be rack mounted.
- Page 6 With the speakers con- nected out of phase, the voice will be diffused, with no identifiable source. Relative phase may be reversed by switching the "+" and "-" leads at one speaker only. MV50 Owner’s Manual...
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Page 7: Absolute Phase
Proper set-up is important in any high-fidelity system, but with state-of-the-art components it is essential. Before attempting to evaluate the MV50, be sure that your phono system has been set up carefully according to manufacturer recommendations. - Page 8 Consult your conrad- johnson dealer for recommendations for your specific system. QUESTIONS? If you have any questions about the installation or function of your MV50 do not hesitate to call Customer Service at (703) 698- 8581. MV50 Owner’s Manual...
- Page 9 No a-c balance adjustment is necessary. It is necessary to re-bias the amplifier when the output tubes are replaced. The MV50 has built in bias indicators so that no instru- ments are required to make this adjustment.
- Page 10 FUSE OF DIFFERENT TYPE OR RATING THAN THAT SUPPLIED BY THE FACTORY. PLATE FUSE: Your MV50 has been fitted with plate supply fuses which are designed to protect the amplifier circuitry in the event of output tube failure. The fuse holders are physically located near the speaker con- nectors.
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Page 11: Specifications
Small Siganal Distortion: Less than .1% at midband Phase: Phase correct (non-inverting) Frequency response: 20Hz to 20KHz +0, -.5dB Hum and noise: 90dB below full power output. Input impedance: 100K ohms. Dimensions: 11.5D x 19W x 9H inches. Weight: 39 lbs. MV50 Owner’s Manual... - Page 12 If the problem is intermittent, please indicate. If you do not have the original packing material, replacements are avail- able from conrad-johnson design at a nominal charge. If the unit is under warranty, be sure to enclose a copy of your receipt as proof of purchase.
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