Descrizione
Nikko pre-amplificatore beta l
Beta | Stereo Pre-Amplifier
Circuitry for signal handling consists entirely of high-volrage FETs.
Input equalizer circuitry and line amplifier are powered by
independent, electronically requlared constant voltage supplies,
which helo ro eliminare interference distortion. The Bera I has
non coupling input for berter frequency response
Inpur sensitiviry for Phono is 2.0mV. Aux, tuner and rape input
sensitiviry is 100mV. Phono overload is 400mV. The hum and
noise specificarion for phono is -72dB (IHF "A"): aux, tuner and
rape are -100dB. Toral harmonic distortion a rared ourour
(1.0V) is 0.01% for phono. Frequency response is 20Hz to
20kHz (#0.10B).
The Bera I features a slim-line design and will fit comfortably
into a standard 19-inch equipment rock. Controls include an
on/off roggle swirch, click srop bass and treble controls, tone
defear roggle swirch, precision dual attenuator rype master
volume control with 42 position (dB) calibration, balance control,
5 -position rape funcrion switchina, 3-way phono impedance
swirching, and dual phono level controls
Dimensions are 2½"H x 19W x 11½"D and the weighr is
11.6 lbs. The Beta I operates on 120V/60Hz AC.