BASIX 60 & 125 INSTRUCTIONS
Description
The Basix 60/125 is a two-channel high-fidelity mixer amplifier providing 60 and 125
watts, respectively, of continuous RMS power. One channel accepts balanced MIC/
TEL-PAGE/600 ohm inputs and the other channel is an AUXILIARY Hi-Z input.
Features
•
MIC/TEL-PAGE/600 ohm input
•
AUXILIARY Hi-Z input
•
Automatic voice activated muting (defeatable)
•
Tone control
•
Transformer isolated outputs for 25V and 70.7V speaker line
•
Peak level/overload indicator
Specifications
Power output:
BASIX 60 : 60 Watts RMS
BASIX 125: 125 Watts RMS
Input Sensitivity/Impedance:
Microphone: 1.5 mv/330 ohm
Tel-Page/600 ohm: 60 mv/600 ohm
Auxiliary: 0.5V/10K ohm
Distortion at Rated Output:
<0.5%THD
Outputs:
4-8 ohm direct, 25V or 70.7V speaker line,
and booster amp output.
Frequency Response:
Direct Output: 20 Hz to 20 kHz ± 3 dB
25V or 70.7V Output: 50 Hz to 15kHz ± 3 dB
Direct Output:
50 Hz to 15kHz ± 3 dB
Hum/Noise:
Mic/Tel-Page/600 ohm: -60dB
Auxiliary: -75dB
Tone:
Flat to @ 10khz-15dB
General
Front Panel Information:
The knob labeled MIC/TEL controls the volume level of the microphone, Tel-page,
and 600 ohm inputs. The AUXILIARY knob controls the volume level of the Auxil-
iary (RCA) input. The tone control, provides treble cut. The green LED indicates that
the amplifier is powered up. The red LED indicates when overload or clipping occurs.
If red LED glows steady this could indicate a shorted or mismatched load or that the
signal level is too high.
Auto-Mute Circuit:
The BASIX series of mixer amplifiers include a built-in automatic mute circuit.
Channel 1, the MIC/TEL-PAGE/600 ohm input channel, can automatically mute the
AUX channel. This mute is defeatable by moving the internal mute jumper to its other
position. The jumper comes factory installed to auto-mute.
CONNECTIONS AND REAR PANEL INFORMATION:
1. Input Terminal Screw Strip (Channel 1)- This strip accepts either a balanced 600
ohm microphone input or a balanced 600 ohm telephone paging or other 600 ohm
balanced input.
2. AUXILIARY input– Volume level of this input through the main amplifier is ad-
justable by the front panel AUX control.
3. Output Terminal Screw Strip– 3 outputs are provided here: the voice coil output for
a 4 to 8 ohm speaker load; the 25V and 70.7V speaker line output; as well as a
booster amp output. The booster amp output has been designed for the addition of
further feeds power amplifiers.
4. AC Power fuse: In the event that this fuse ever needs replacement, be sure to re-
place it only with a fuse of identical ratings as the original.
REV B ~1~
~2~ REV A
