Specifications - Insignia NS-A1200 User Manual

Symptom
No sound in one channel. Speaker short circuits,
Amplifier turns off at
medium or high volumes.
Protect LED is on.

Specifications

Ω
4
Ω
2
Ω
1
Signal-to-noise ratio
Frequency response
Variable low pass
Variable subsonic
Variable bass boost
Phase control
Input sensitivity
Input impedance
Line output
impedance
16
Cause
disconnected speaker
cables.
Mismatch with speaker
load impedance.
Overheated amplifier.
Speaker cable short
circuit.
150W × 1 channel, @1% THD
225W × 1 channel, @1% THD
400W × 1 channel, @1% THD
100 dB
15 Hz ~ 150 Hz
50 Hz ~ 150 Hz
15 Hz ~ 40 Hz
0 ~ +18 dB
0° ~ 180°
200 mV to 8 V
Ω
10K
Ω
100
www.insignia-products.com
Insignia NS-A1200 Car Amplifier
Solution
Check speaker leads for
short circuits or
disconnected cables.
Reverse the LEFT and
RIGHT RCA inputs to
determine if the loss is
occurring before the
amplifier.
Check speaker load
impedance. Make sure
that you have followed
correct speaker load
impedance
recommendations. (If you
used an ohm meter to
check speaker
resistance, remember
that DC resistance and
AC impedance may not
be the same.)
Turn source device's
volume down. Relocate
the amplifier to a better
ventilated place.
Separate all speaker
wires, and make sure
they are insulated.