How do you control bass and treble - Car Audio & Video

Maybe bass and treble settings OR the volume control IC has gone bad. Basically, all analog signals processed by DAC fed from DSP will enter this IC for bass and treble control. If it is bad, no bass and treble control can get. You should bear in mind that the setting of bass and treble is good before checking the volume control IC.

On the Remote Control
Press
1 TONE
ToneControl•OFF-
2 Use selection button to select "ON".
ON : Allow tone adjustment (bass, treble).
OFF : Playback without tone adjustment.
NOTE
The tone cannot be adjusted in the direct
mode.
3 Press
to select an item to be set, and use
TONE
to select a setting value.
Bass : Adjust low frequency range (bass).
• -6dB - +6dB (0dB)
Treble : Adjust high frequency range (treble).
• -6dB - +6dB (0dB)
"Bass" or "Treble" can be set when "Tone Control" is set to
"ON

The frequency of mid range control is about 1KHz. The bass and treble are usually enough to set the tone of sounds and music, and if the customer has high quality speakers connected to the amplifier it is almost unnecessary to modify any tone. In my opinion you are right that x-band equalizer became less important now.
Thank you.
gylacz

You can only use bass and treble if your Z-Enhancer is OFF. If it is on excite or bass boost you cannot adjust bass or treble

You should check the Direct button is pressed or not.
In Direct mode, it by passes the treble and bass circuitry so you will not hear any difference even if you turn it.

Use Z-enhancer to select custom (you may have to hold it down for 2 secs)
A-M button then selects or bass treble settings.
volume up/down changes the setting

Press in on the volume control repeatedly to step through the menu of audio functions. The
first option is Volume, followed by subwoofer (only if the subwoofer feature is currently
activated), Bass, Treble, Balance, Fader and back to Volume. When adjusting audio functions,
the unit will automatically exit audio control mode after five seconds of inactivity

If you need the user's guide, click her to download.

Only parametric EQ OR Bass/Treble can be active at a time. There is a option to set which one you want, refer to manual. Follow this- Adjusting Sound Setting Mode (long press "sound-mode" button) -> EQ SELECT-> select either P. EQ or B/T

Bass and treble can be adjusted via the sound menu only when the z-enhancer is set to off.

To change them while the Z-enhancer is on (B-Boost, Excite, Impact) choose the enhancer mode, then press the play/ent button. You can then use the up/down arrows to adjust bass and treble to -3 to +3

there should be and audio button on the face plate...keep pushin it till it says bass mid or treble...then use the up down left and right buttons....