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5M21/5M20 Power Amp Section  Block Diagram 

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Summary of Contents for 5M21

Page 1: ...POWER AMPLIFIER A major breakthrougth amplifier technology a new series of amplifiers incorporating total DC design ensuring the most faithful sound reproduction with lowest phase and transient distor...

Page 2: ...dy rendered on the components as well as the circuitry made it possible to reduce it lower than even that of class A amp without sacrifice of output power The advantage of DC amp has been fully apprec...

Page 3: ...ing of meter sensitivity to the effect that ft AUYM PAOC SS O OC POw R AMP lf ICR t UXMAH SM lift CHAMMU 0dB indicates the maximum level may be inconvenient since the VU meter needle gives little or n...

Page 4: ...s illuminate To switch off the am plifier press in the switch once again 6 INPUT TERMINAL Outputs of the mating control pre amplifier are connected to these terminais Next to these terminais independe...

Page 5: ...evel attenuation from OdB down to 00 is possible ClllaalHll _ NII _ fll __ _Nlllllll PROt CtOA UfCSWITCHCO 0 Ill 1111 With the knob position completely turned clockwise which is the MAX position atten...

Page 6: ...FUSE This device is provided to protect the amplifier from breakdown caused by unexpected abnormal current flow within the circuit Especially it functions to protect the amplifier when short circuitin...

Page 7: ......

Page 8: ...racteristics The 5M21 is equipped with 2 large VU meters to show the average output level If you want to monitor the instantaneous peak output it is recommended to purchase the 5E24 peak indicator uni...

Page 9: ...of such stack Perfect fit between the legs and receptacles prevents each component unit from falling or sliding However if the unit is placed on the furniture or other kind of wooden cases with these...

Page 10: ......

Page 11: ...TAGE CUITlr 0 POWER REIAY L I SPEAKER 1 0305 0307 309 ill TERMINAL 0302 CONSTANT PNP T PNP T CURRENT ORIIIU PARAIIEI PUSH CURCUIT CIRCUIT FINAi STAGE 61V 5M21 5M20 Power Amp Section Block Diagram SECO...

Page 12: ...1 1 j 1 1 11 t 20KHz lQ HJ I r KHz o 1 o 2 0 2 0 1 0 05 02 0 01 o ____ J___ ___J_ o o 001 10 20 o 5 2 5 10 20 50 POWER W 5M21 5M20 T H O VS FREQUENCY 8 0 80TH CH ORIVEN t l _ 1 1 llJL_J_ 50 100 200 _w...

Page 13: ...Hz 4 l 8naoTH QI DIIIVEH DIST METER Sf 1700Bl r o 5 50 1 1 1 2 5 10 20 POWER W I 50 1 I 100 SM2l 5M20 FREQUENCY RESP0NSE tod8 100W an 80TH QI DIIIYEN 100 200 500 IK 2K FREQUENCY Hz 5K IOK 5M21 fllEQUE...

Page 14: ...30 10 3 0 20 t 10 u 0 f 20 30 20 50 tN UT CA ACITOPMN t DC 20 50 5M21 5M20 CROSSTALX POWER 100W VOLUME MAX 100 100 200 500 IK 2K FREQU NCY Hz _ 5K 5M21 5MZO PHASE CHARACTERISTIC 200 500 IK 2K FREQUENC...

Page 15: ...sions 442 W x 400 D x 146 H mm 17 13 32 X 15 3 4 X 5 3 4 Weight Net 19kgs 41 8 lbs 5M20J Gross 21kgs 46 2 lbs Power Output 1DOW minirr um continuous per channel into 8 ohm loads both channels driven a...

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