7
•
rotated the single knob labelled ‘Selector” on the right front of the unit to the appropriate input, corresponding
to the input you will use initially, either MC 1 or 2 or MM 1 or 2. The MC 1 and 2 and MM 1 and 2 input labels
are at 10 o’clock, eleven o’clock, 1 o’clock, and 2 o’clock, respectively (See Figure 2).
•
if you are using a moving coil cartridge, set the MC transformer controls on the top of the chassis to the factor
that you will try initially (See Figure 3).
•
checked that all your connections are snug.
To turn on the H-5500, press in the button switch labelled “power” just to the right of the current meter on the left
of the front panel. Pressing the power button again will power down the H-5500 (See Figure 2).
OPERATION
The H-5500 has a “soft start”. After pushing in the power button, the H-5500 will take about 40 seconds to be ready
for play. Each time the H-5500 is powered on, the current meter and the light in the middle of the front panel will
both illuminate. The light will be red. It will change to orange at the same time that the needle of the current meter
moves up to between the two parallel lines at its top.
Note:
if the mute button is in the “mute” position (button
“out”) when you power on the H-5500, the light will illuminate red and stay red until the mute button is pressed
“in”, unmuting the H-5500 and causing the light to change from red to orange.
CURRENT METER
The current meter indicates correct operation of the H-5500. If the meter falls to the right outside the two parallel
lines that it should sit between, a failure of the voltage regulator or voltage corrector tube (or both) is indicated. If
the needle falls to the left outside the parallel lines, a failure of one or more of the E180CC tubes is indicated. Such a
failure will likely be accompanied by a loss of output in one or both channels.
To restore correct operation, change the tube(s) that have failed, using the same or equivalent tube (only as
specified in this Manual). No biasing is required.
SPECIFICATIONS FOR THE ALLNIC AUDIO H-5500 PHONO-STAGE PREAMPLIFIER
Inputs: Two (2) pairs Moving Coil (MC) unbalanced (RCA)
Two (2) pairs Moving Magnet (MM) unbalanced (RCA)
Output: One (1) pair unbalanced (RCA)
Ground: One (1) x screw type terminal
Frequency (RIAA): 20Hz ~ 20KHz (±0.3db)
Voltage Gain: MM: +38db (1KHz)
MC: Variable: +22dB, +26dB, +28dB, +32dB (1Khz)
Input Impedance: MC up to 278Ω
MM 47kΩ
