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Technics SU-A2

Legendary Class A Stereo DC Control Amplifier. FRONT PANEL CONTROLS

LEFT: Meters with Decibel Scale (-50 to +10dB) and Voltage Scale (0.003-1 V). Power Switch, Phones (voice-coil impedance 4-600 Ω, phones only -∞). Meter Mote for Average (attack time 0.33 sec), Peak (attack time 0.00005 sec) and Peakhold (max. detected value held as meter reading for 2 h). Filter Switches (Low, High, EQ Subsonic).

MIDDLE: Pilot Lamps (OSC, Mic). Input Selectors single touch pushbuttons with pilot lamp and memory function of program source for Aux, Tuner, Phono, Tape 1, 2 or 3 Rec/PB). Rec Selector pushbuttons with pilot lamps for Tape Dubbing (1>2-3, 2>1-3, 3>1-2), Aux, Tuner (with special memory function), Phono, Off. Tone Position (Rec Out, Pre Out, Off). Mode Selector (rev, stereo, L+R, L, R). Balance Control. Operation Switch(DC, low cut 2 Hz).

RIGHT: Phono and Cartridge Selectors (Phono 1 MC/MM, Phono 2 MC/MM). Master Volume Control (variable loudness), Loudness (On/Off), Muting (-∞, Off, -20dB).

BEHIND FRONT FLAP

LEFT: Phones Level Switch. Pre Out Terminals. Meter Section with Attenuator (-10 dB to -20 dB) and Input Selector (ext, mic, pre out, rec out). OSC Section with Frequency Control (20-20,000 Hz) and Mode Selector (square wave, sine wave, off, warble tone, pink noise). Microphone Section with Jacks (left, rigth), Mixing Level Control and Impedance Selector (600 Ω, 500 kΩ, Mixing, Off).

MIDDLE: Universal Tone Equalizer Section with Tone Mode Selectors, 4 Band Level Controls (-10 dB∼-10 dB) and Selectors for Bandwidth (0.7-7) and Frequency (15-240 Hz; 63-1,000 Hz; 250-4,000 Hz; 1-16 kHz).

RIGHT: Phono (1, 2) Selectors Section with Level Controls (2.5-10 mV) and Selectors for Input Capacitance (100pF∼500pF) and Input Resistance (MM 22∼100 kΩ; MC 10∼220 Ω). Tape 3 terminal (Front/back, PB, Rec Out).

Specifications: Operating Instructions


Technics SU-A2
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Technics SU-A2
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Specifications:
1. General
System: Transistor DC Control Amplifier
Colour: 1=Silver, 2=Black: 2
Power consumption: 300 W @ 120/240 V
Pre Amplifier
Inputs: Phono MM I+II; Phono MC; Tuner; Tape; AUX; Mic, 2 Meter Ext. Input
Quadro: no
Inp. Sensitivity High Level: 150 mV
Inp. Impedance High Level: 47 kΩ
Frequency Response High Level: DC~20,000 (+0/-0.2 dB) HZ
Inp. Sensitivity Phono MM: 2.5 mV
Inp. Impedance Phono MM: 22/ 33/ 47/ 75/ 100 kΩ
Inp. Sensitivity Phono 2: 2.5 mV
Inp. Impedance Phono 2: 22/ 33/ 47/ 75/ 100 kΩ
Frequency Response Phono MM: DC~20,000 RIAA (▒0.2 dB)
Signal/Noise Phono MM: 95 (2.5 mV, IHF A); 107 (10 mV, IHF A) db
Inp. Sensitivity Phono MC: 0.1 mV
Inp. Impedance Phono MC: 0.00/ 0.022/ 0.047/ 0.10/ 0.22 kΩ
Signal/Noise Phono MC: 80 (-160 dBV) db
Outputs: 2 PRE OUT; 3 REC OUT; 3 PLAYBACK; AC OUTLETS (3 switched, 3 unswitched)
Frequency Response: Phono MC 30 Hz~20 kH RIAA (▒0.2 dB) HZ
Harmonic Distortion: 0.003 (0.005 Phono MC, Mic) % at rated output
Output Voltage Rec Out: 150 mV
Impedance Pre Out: 0.5 kΩ
Output Voltage Pre Out: 1,000 mV
Impedance Rec Out: 0.5 kΩ
Equalizer
Filters: Equalizer Subsonic 30 Hz (12 dB/oct.); Low 15 Hz, 30 Hz (18 dB/oct.); High 8 kHz, 12 kHz (18 db/oct.)
Loudness: -20 dB, off, -∞
2. Physical
Dimensions in Inches: 17.72 x 8.07 x 22.59 (w) x (h) x (d)
Dimensions in mm: 450 x 205 x 574 (w) x (h) x (d)
Weight in lbs: 84.88 lbs
Weight in Kg: 38.5 Kg



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