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Pioneer SX-727 receiver

Upper range power output, unusual FM selectivity and sensitivity and the versatility of units costing much, much more - the SX-727 stereo receiver from Pioneer puts together all of these hi-fi virtues and offers the music enthusiast a new high in stereo valve. verSatility is the keynote of this attractively-designed unit. The SX-727 handles up to two tape decks, two turntables, three pairs of speaker system and a microphone. Its sensitive FM section is loaded with the very latest of solid state circuitry - the better to offer distortion free reception. Its direct-coupled power amplifier circuitry means a wide power bandwidth and superb frequency response. And the unit puts out up to 195 watts of music power (at 4 ), more than enough to fill a large room with great sound. Now available at a price that is as surprising as its many features.

 


Features:

Two tuning meters, a wide linear scale FM -dial

Sensitive FM front-end section

FET equipped FM Muting Circuit

IF section with ceramic filters

FET equipped control amp section

Direct-coupled power amp section

Tape-to-tape duplication

 


Specifications

Power Amplifier Section

Music power Output (IHF):

195 watts at 4

122 watts at 8

Continous Power Output (1 kHz, each channel driven)

69 W/69 W at 4

48 W/48 W at 8

Continuous Power Output (1 kHz, both channel driven):

50 W +50 W at 4

40 W + 40 W at 8

Power Output in the Range of 20 Hz to 20 kHz (both channels driven):  37 W + 37 W ( 8 , T.H.D. less than 0,5%)

Total Harmonic Distortion

Less than 0,5% (Continuous power output)

Less than 0,03% (8 , 24 W/24 W power output)

Intermodulation DIstortion

Less than 0,5% (Continuous power output)

Less than 0,03% (8 , 24 W/24 W power output)

Power Bandwidth (IHF):  10 Hz to 60 kHz (8 , T.H.D. less than 0,5%)

Frequency Response;  7 Hz to 80 kHz, ±1 dB

Input Sensitivty/Impedance:  500 mV/50 k  (1khz, Continuous power output)

Speakers:  4 to 16

Damping Factor:  40 (8 , 1 kHz)

Preamplifier Section

Output Voltage:  500 mV (Rated output, 4 V Max.)

Total Harmonic Distortion :  less than 0,1%

Frequency Response:  10 Hz to 20 kHz ±1 dB

Input Sensitivity/Impedance (1 kHz, for rated output)

Phono 1 Mag :  3 mV/50 k

Phono 2 mag :  3 mV/50 k

Mic :  2,7 mV/50 k

Aux :  200 mV/100 k

Tape Monitor 1, 2 :  200 mV/100 k

Recording Output

Tape Rec 1, 2 :  200 mV (Pin jack)

Tape Rec (DIN) :  35 mV

Controls:

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Low Filter :  -8 dB / 50 Hz (6 dB/oct.)

High Filter :  -9 dB /10 kHz (6 dB/oct.)

Equalization Curve:  Phono RIAA standard

Loudness Contour:  +10 dB/100 Hz ; +6 dB/10 kHz (with Volume Control set at -40 dB position)

Muting:  -20 dB

Hum and Noise (IHF):

Phono :  better than 85 dB

Aux :  better than 95 dB

FM Tuner Section

Frequency Range:  88 MHz to 108 MHz

Usable Sensitivity (IHF):  1,8 µV

Capture Ratio (IHF):  2,0 dB

Selectivity (IHF):  better than 70 dB

Image Rejection:  better than 85 dB (98 MHz)

IF Rejection:  better than 100 dB (90 MHz)

Spurious Rejection:  better than 90 dB (98 MHz)

AM Suppresion:  50 dB

Signal-to-Noise Ratio :  70 dB

Total Harmonic Distortion :

Mono : less than 0,3% (100 % mod.)

Stereo :  less than 0,5% (100 % mod.)

Tuning Indication:  Signal strength type and Center tuning type

Muting:  switchable to On-Off

Stereo Separation:  better than 40 dB (1 kHz)

Subcarrier Suppression:  better than 50 dB

Antenna Input:  300  (balanced); 75  (unbalanced)

AM Tuner Section

Frequency Range:  525 kHz to 1605 kHz

Usable Sensitivity (IHF):  10 µV

Selectivity (IHF):  better than 35 dB

Image Rejection:  better than 80 dB (1,000 kHz)

IF Rejection:  better than 75 dB

Signal-to-Noise Ratio:  better than 50 dB

Antenna:  Built-in ferrite loopstick antenna

Miscellaneous

Semiconductors:  4 FETs: 4ic; 56 Transistors; 37 Diodes

Power Requirements:  110, 120, 130, 220, 240 V 50/60 Hz

Power Consumption:  270 W (max.)

AC Outlets:  Switched 1, Unswitched 2

Dimensions (W x H x D):  485 x 150 x 390 mm (19-1/16" x 5-7/8" x 15-3/8")

Weight: 

Without Package :  14 kg (30 lb 14 oz)

With Package :  17 kg (37 lb 8 oz)


 

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