TN4.900D Pre-Amp
TN4.900D Pre-Amp End Panel
1. Front RCA Audio Input Connection
Using high quality shielded stereo RCA cables, connect the
2. Front Level Sensitivity
sensitivity level is 200mv, while the maximum level is 6V.
3. Front High Pass Crossover
Adjust the frequency setting of the High Pass Crossover. The
frequency range is 20Hz-4kHz. Frequencies lower than the
4. Front Crossover Frequency Multiplier
Use the frequency multiplier to change the High Pass Cross-
over frequency range x10.
5. Front Low Pass Crossover
Adjust the frequency setting of the Low Pass Crossover. The
frequency range is 50Hz-5kHz. Frequencies higher than the
6. Front Crossover Frequency Multiplier
Use the frequency multiplier to change the Low Pass Crossover
frequency range x10.
7. Front Crossover Selector Switch
Choose to activate the High Pass Crossover, Low Pass Cross-
over, or Band Pass Crossover. Band Pass Crossover uses the
high pass and low pass crossovers simultaneously.
8. Input Selector Switch
Choose ST for single stereo input. This allows the front & rear
channels to receive signal from only the front RCA inputs.
Choose 4CH for 4 channel input. This allows for independent
front & rear RCA inputs.
9. Power Indication LED
LED will illuminate green. Refer to the Troubleshooting Guide
for possible solutions if the amplifer will not power on.
10. Protection Indicator LED
red. Refer to the Troubleshooting Guide for possible solutions if
11. Rear Crossover Selector Switch
Choose to activate the High Pass Crossover, Low Pass Crossover,
or Band Pass Crossover. Band Pass Crossover uses the high pass
and low pass crossovers simultaneously.
12. Rear Crossover Frequency Multiplier
Use the frequency multiplier to change the Low Pass Crossover
frequency range x10.
13. Rear Low Pass Crossover
Adjust the frequency setting of the Low Pass Crossover. The
frequency range is 50Hz-5kHz. Frequencies higher than the
14. Rear Crossover Frequency Multiplier
Use the frequency multiplier to change the High Pass Crossover
frequency range x10.
15. Rear High Pass Crossover
Adjust the frequency setting of the High Pass Crossover. The
frequency range is 20Hz-4kHz. Frequencies lower than the
16. Rear Level Sensitivity
sensitivity level is 200mv, while the maximum level is 6V.
17. Rear RCA Audio Input Connection
Using high quality shielded stereo RCA cables, connect the
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TN4.900D
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