ESC
2238B

2238B

ManufacturerMarantz
FunctionRadio Receiver
Produced1977-80
Signal PathAnalog Hardware
Dimensions440 x 137 x 365mm
Weight12.5kg
Power110V~, 60Hz; 220V~, 50Hz
Frequency Response10Hz to 40kHz
Damping factor, SP Output40Hz, 1kHz, 12.5kHz (60, 60, 40)
Frequency response± 2dB (Phono), ±1.5dB (Aux), ±1.5dB (Main in) (18Hz ~ 30kHz (Phono), 10Hz ~ 40kHz (Aux), 10Hz ~ 40kHz (Main in))
Signal to noise ratio50dB (Phono), 50dB (Aux), 55dB (Main in) (1kHz)
Input sensitivity1.8mV (Phono), 180mV (Aux), 1.5V (Main in)
Input Impedance47k ohms (Phono),20k ohms (Aux), 33k ohms (Main in) (1 kHz)
Phono Equivalente Input Noise1.5μV
Phono Dynamic Range92 dB
Phono Input Capacitance100pF
Channel Balance0~ - 40 dB (Phono), 40~ - 16 kHz (Aux), ... (Main in) (2.5dB (Phono), 2.0 dB (Aux), 1.0 dB (Main in))
Tuning rangeFM, MW
Total harmonic distortion0.08%
Semiconductors3 x IC, 46 x transistors, 34 x diodes, 1 x FET
Connections
  • Headphones · 1/4" Phone Jack (6.35mm)
  • Aux Input (L, R) · RCA (Phono, Cinch)
  • Phono Input (L, R) · RCA (Phono, Cinch)
  • Speaker System 1 · Terminal Block
  • Speaker System 2 · Terminal Block
  • Tape Monitor 1 In (L, R) · RCA (Phono, Cinch)
  • Tape Monitor 1 Out (L, R) · RCA (Phono, Cinch)
  • Tape Monitor 2 In (L, R) · RCA (Phono, Cinch)
  • Tape Monitor 2 Out (L, R) · RCA (Phono, Cinch)
  • Main In (L, R) · RCA (Phono, Cinch)
  • Pre Out (L, R) · RCA (Phono, Cinch)
Controls
  • Selector · Rotary Switch · AM, FM, Phono, Aux, Tape 2
  • Bass · Rotary Pot with Switch · 100k ohm
  • Mid · Rotary Pot with Switch · 100k ohm
  • Treble · Rotary Pot with Switch · 100k ohm
  • Balance · Rotary Pot with Switch · 50K ohm
  • Volume · Rotary Pot · 50K ohm
  • FM Muting · Toggle Switch
  • FM 25us · Rotary Encoder
  • Tape 1 Monitor · Toggle Switch
  • Mono · Toggle Switch
  • Hi Filter · Toggle Switch
  • Low Filter · Toggle Switch
  • Loudness · Toggle Switch
  • Speaker System 1 · Toggle Switch
  • Speaker System 2 · Toggle Switch
  • Power · Toggle Switch
  • Voltage · Rotary Switch
Displays
  • Signal Strength · DC Meter
  • Tunning Meter · DC Meter
  • Stereo · Light
Linkshifiengine · classicaudio
NotesRated output per channel: DIN 4 ohms (1 kHz): 72 W; FTC 4 ohms (20 Hz - 20 kHz): 48 W; DIN 8 ohms (1 kHz): 52 W; FTC 8 ohms (20 Hz - 20 kHz): 38 W