Integrated Stereo Amplifier Alpha II (2)

A&R Cambridge Ltd. (ARCAM); Waterbeach, Cambridge

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  • Year
  • 1989
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 312758

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 110/120; 220/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 60 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Stereo Amplifier Alpha II - A&R Cambridge Ltd. ARCAM;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 84 x 230 mm / 16.9 x 3.3 x 9.1 inch
  • Notes

  • A stereo hi-fi integrated amplifier with output power of 30 watts per channel into 8 ohms. Bass and Treble tone controls, Tape Monitor switch. RCA input sockets for Video, Tuner,  CD and Disc (MM cartridge), RCA input/output sockets for tape recorder. 4mm switched and direct sockets for 1 or 2 pairs of loudspeakers and a jack for headphones. MCA module available for MC cartridges.

    Specification (Serial numbers 18800 - 39649)
    (Noise and sensitivities ref. 30W into 8 ohms at 1kHz.)
    Output Power (typical)  
    Both channels driven into 8 ohms:   30W (20Hz-20kHz at 0.5% THD)
    Single channel at lkHz into 8 ohms: 40W typ. Into 4 ohm 60W typ.
    Harmonic distortion: at 25W, 8 ohms at 1kHz 0.02% typ.
    Frequency Response
    Disc Input:      typ ±0.5dB 60Hz-20kHz,-3dB at 20Hz
    Other Inputs:   typ ±0.5dB 30Hz-20kHz,-1dB at 20Hz
    Inputs
    Disc (suitable for MM and 'high-output' MC cartridges
    Sensitivity:     2.5mV, impedance 47k ohm/100pF
    With MCA Module fitted (for MC cartridge)
    Sensitivity:     120µv, impedance 330 ohms
    Tuner, tape and video
    Sensitivity:     200mV
    Noise:           < -90dB
    Input impedance: 25k ohm
    CD
    Sensitivity:     450mV, impedance 10k ohm
    Outputs
    Tape output
    Nominal output level: 200mV, impedance 2k ohm
    Headphones
    Maximum output level into 600 ohms: 10V rms
    Output impedance: 330 ohms.
    Suitable for headphones of 8 ohm to 2k ohm impedance.
    Loudspeakers
    Nominal output level 30W per channel. Suitable for speakers of 4 ohm or higher nominal impedance.

    Power supply
    240V nominal 120VA, may be dealer adjusted to 120V nominal.
    (220/110V and 100V models to special order)

  • Net weight (2.2 lb = 1 kg)
  • 4 kg / 8 lb 13 oz (8.811 lb)
  • Mentioned in
  • -- Original prospect or advert (1989 Arcam Audiophile Products catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Alpha 2 Handbook (Amplifier and Tuner) dated Feb 1990)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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