Crossover Frequency Selection Freq | MTX Audio TC3001 instruction

SYSTEM TUNING (INPUT GAIN ADJUSTMENT)

SYSTEM TUNING (CROSSOVER ADJUSTMENT)

Located on the Input Panel, the objective of GAIN adjustment is to match the output of the source unit with the input of the ampliﬁer. The output voltage of individual source units can vary. Some source units have an output of 200mV and others have 5 volts or more. To cater to these variations, the ampliﬁer has an adjustable gain control that ranges from 100mV to 5 volts. Follow the steps below to set gains.

Besides better sonic reproduction, proper input GAIN also helps to prolong the reliability span of your ampliﬁer by eliminating excessive internal temperature generated by incompatible source unit output and ampliﬁer input.

Note: Turning the input gain up does not indicate more power. Just more noise. The input gain control is not a power control.

If the Remote Gain is used, connect the plug of the Remote Gain to the port on the panel of the ampliﬁer.

1.Turn the input GAIN all the way down (counter-clockwise).

2.Set the volume control of the source unit to approximately 3/4 of its maximum output.

3.Turn the balance control of the source unit to its center position (ﬂat).

4.Leave the tone (bass/treble) controls at their usual position (ﬂat).

5.Play a CD or tape track with great dynamic range.

6.Use the Bass Boost Control on the amp to enhance the bass performance (if desired), not the bass on the headunit. Use this control sparingly.

7.To locate the optimum gain setting, ask the person assisting you to turn the input GAIN control clockwise until audio distortion starts to develop. Turn the gain control back wards slightly to minimize the distortion.

8.If you constantly switch between CD/tape and radio, you will need further adjustment since radio output level differs from that of CD or tape. In this case, you need to locate a balanced gain setting which is best for both the output level of radio and the CD/tape.

Note: If you are using the Remote Gain, make sure to take this into account during setup procedures of the subwoofer ampliﬁer. You should set the system up with the Remote Gain plugged in, and with the level knob turned all the way down (counter-clockwise).

CROSSOVER FREQUENCY SELECTION (FREQ)

The built-in low-pass crossover offers continuously adjustable crossover frequencies between 40Hz and 200Hz. Adjust the setting according to your speaker component speciﬁcation or to your particular preference.

BASS BOOST CONTROL (BASS BOOST)

Select a boost level between 0dB and +18dB @ 40Hz to enhance the bass performance for your sound system. BASS BOOST is NOT free! Every 3dB of boost costs you twice as much in power. Make sure to set the ﬁnal gains after setting the Bass Boost to work best with your subwoofer/enclosure combination. More is NOT always better!

SUBSONIC FILTER (SUB SONIC)

The ﬁxed 30Hz sub sonic ﬁlter can be set on/off. When enabled, the integrated sub sonic ﬁlter creates cleaner and tighter bass reproduction by protecting the power amp and speaker from harmful ultra-low frequencies. We recommend enabling this item at all times.