• Country
• United States of America (USA)

• Manufacturer / Brand
• Marantz (Sound United LLC); Vista, CA

• Year
• 1972–1975

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 108916

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 100; 120; 200; 220; 240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 60 W (90 W max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereophonic Receiver 2230 - Marantz Sound United LLC;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 17.328 x 5.39 x 14 inch / 440 x 137 x 356 mm

• Notes

•  A hi-fi stereo receiver with an AM/FM stereo tuner with an analogue dial and an integrated amplifier with power output of 2 x 30 watts into 8 ohms, housed in a metal case with a champagne gold fascia (a WC-22 wooden case optional). The preamplifier and power amplifier sections can be separated. With a Signal Strength meter, jacks for headphones and Dubbing, Gyro Touch tuning, Lo and Hi Filters, Loudness, Mono, Muting. On the back, an AM ferrite rod antenna, terminals for AM and FM antennae, RCA phono sockets for input phono (MM) and Aux, for input/output Tape, for FM Quadradial output, Main In/Pre Out, terminals for 2 pairs of loudspeakers, switched and unswitched AC outlets.

  Specification
  Audio Section
  Rated continuous (RMS) power output per channel, both channels driven
  Into 4Ω and 8Ω  Into 16Ω	30 W 20 W
  Comparable Total Music Power (IHF)	90 W into 8Ω
  Dynamic range	96dB
  IM Distortion (SMPTE), at rated power	0.5%
  Total Harmonic Distortion, at rated power	0.5% Max.
  Power Bandwidth (IHF) for 0.5% THD	15Hz-50kHz
  Damping Factor (ref. 8Ω)	> 45
  Frequency Response through phono	±1dB
  Input Sensitivity (for 30W at 8Ω)
  High-level  Phono (1kHz)	180mV 1.8mV
  Input Impedance
  High-level  Phono	100kΩ 47kΩ
  Channel Separation 20Hz-20kHz	35dB Min.
  FM Section
  IHF Usable Sensitivity	2.3µV
  Selectivity	60dB
  Total Harmonic Distortion, 400Hz, 100% Mod.	0.3% (Mono), 0.4% (Stereo)
  Frequency Response	50Hz-15kHz ±1dB
  Stereo Separation 1kHz	40dB
  AM Section
  IHF Sensitivity	25µV

  Versions/Power requirements
  100/120/200/220/240V AC 50/60Hz switchable internally

  Power consumption:  220 W

  Das zweitkleinste Modell der für das Modelljahr 1972 vorgestellten 22er Receiver Serie.(2215, 2230, 2245, 2270) Dieses Gerät wurde mit kleinen Änderungen bis 1975 gebaut. Es gab gravierte oder bedruckte, alu- oder champagnerfarbene ("gold-anodized") Frontblenden. Die Ausgangsleistung des 2230 wurde vom Hersteller, sehr konservativ, mit 2 x 30 Watt Dauerleistung bzw 2 x 45 Watt Musikleistung, nach RMS (20-20kHz), an 8 Ω angegeben.

  Im Katalog 1974 (Superscope) wurden dann auch circa Werte nach DIN angegeben.

  • 2 x 43 Watt sinus bzw 2 x 64 Watt Musikleistung an 4 Ω
  • 2 x 44 Watt sinus bzw 2 x 66 Watt Musikleistung an 8 Ω        

  3-fache Klangregelung (Höhen, Mitten, Tiefen), Vor und Endstufe auftrennbar, Feldstärkeanzeige, Muting für UKW, einstellbar, Leistungsaufnahme 220 Watt.

  Gegen gesonderte Berechnung war ein Holzgehäuse (WC-22) lieferbar.

  Designed in USA, Produced in Japan

• Net weight (2.2 lb = 1 kg)
• 28.6 lb (28 lb 9.6 oz) / 12.984 kg

• Price in first year of sale
• 1,890.00 DM

• Source of data
• -- Original prospect or advert

• Mentioned in
• Marantz Receiver 1972, 1974, Preisliste 1972 (Bolex), HiFi-Jahrbuch 1972

• Literature/Schematics (1)
• - - Manufacturers Literature (Service manual Marantz 2230)

• Literature/Schematics (2)
• - - Manufacturers Literature (Handbook of instructions Marantz 2230)

• Literature/Schematics (3)
• -- Original prospect or advert (1972 Marantz Stereo Receivers catalogue)

• Author
• Model page created by Ralf Kläs. See "Data change" for further contributors.

• Other Models

• Here you find 569 models, 560 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marantz (Sound United LLC); Vista, CA