Manual Rockford Fosgate T400X2ad (page 8 of 10) (English)

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Input Clip Indicator Setup

Step 1. Be sure to disconnect all speakers from the

ampliﬁer.

Failure to comply may cause damage to con-

nected components and/or ampliﬁer.

Step 2. Turn on the source unit with volume set to zero.

Step 3. Adjust the Bass & Treble levels on the source unit to ﬂat.

Step 4. Insert test tone or music CD to play for setup.

Note: Use the 40Hz @ 0dB tone (Track 5) for mono ampliﬁer applications

or the 1kHz @ 0dB tone (Track 7) for multi-channel ampliﬁer applications.

Be sure your x-over is switched to the appropriate ﬁlter setting.

Step 5. Increase the source unit volume until the Input Clip Indicator il-

luminates red.

Note: Input Clip can be viewed remotely with optional PLC2.

Step 6. Decrease the source unit volume slightly until the light turns

completely off. This establishes your maximum source unit vol-

ume for adjusting the Output Clip Indicator.

Note: Some source units will not clip.

Output Clip Indicator Setup

Step 7. Be sure to disconnect Punch Level Control - PLC (if equipped)

from the ampliﬁer.

Step 8. Adjust the Input Level knob until the Output Clip Indicator illu-

minates to the appropriate color. Repeat for all channel levels of

input.

Step 9. Turn the source unit volume down.

Step 10. Reconnect all speakers and Punch Level Control

- PLC (if equipped) to the ampliﬁer. Be sure to

maintain proper speaker polarity.

Operation

illus.-3.1

illus.-3.2

illus.-3.3

illus.-3.4

illus.-3.5

illus.-3.6

illus.-3.9

illus.-3.8

illus.-3.7

Punch EQ

This works along with the crossover switch on the ampliﬁer. When set to

Low-Pass (LP) operation, this is a variable Bass Boost. When set to High-

Pass (HP) operation, this is a variable Mid-Bass and Treble Boost. When

set to All-Pass (AP) operation, both the Bass and Treble frequencies are

boosted. Set this to your personal preference while listening to the system.

Over excursion and subsequent damage may

occur at high levels of boost.

Remote Punch Level Control (Option)

NOTE: Previous (prior to 2013) PEQ, Punch Bass and Para-Punch

remotes will not work with these ampliﬁers.

Quick Install:

1. Using the screws supplied, install the mounting clip.

2. Slip the remote onto the mounting clip until it snaps into place.

3. Route and connect the cable to the remote and ampliﬁer.

Operation:

4. When connected, the “Subwoofer Level Control” is linked and allows

you to remotely control the output level of the ampliﬁer from the dash

or center console.

For the T500X1br, the Remote Punch Level Control needs to be switched

to the “ON” position for this feature to be active. The T400X2ad needs to

be switched to “Low-Pass” for this feature to be active. This feature is not

available on the T400X4ad.

NOTE: Use the instructions that came with the remote for a variety of

mountings that ﬁt your preference.

Adjusting Crossover Frequency

Do the following individually for each channel.

Placing the crossover switch in the HP posi-

tion sets the ampliﬁer to the High Pass mode,

enabling frequencies above the cut-off point to

pass, adjustable between 50-250Hz.

Placing the crossover switch in the AP position sets the ampliﬁer to the All

Pass mode, preventing any crossover adjustment, allowing all frequencies

to pass.

Placing the crossover switch in the LP position sets the ampliﬁer to the

Low Pass mode, enabling frequencies below the cut-off point to pass,

adjustable between 50-250Hz.

Turn the crossover adjustment knob all the way down. With the system

playing, turn the crossover adjustment knob up slowly until the desired

crossover point is achieved.

2/4 Channel Switch

Setting this switch to the 2CH. position, switches the inputs to

a 2-channel mode, allowing connection to only the front inputs

with a 4-channel output.

Output controls function the same as if the ampliﬁer was in

4-channel mode.

All “ACTIVE” inputs must have RCA jacks connected.

Switch in 2CH. position,“ACTIVE” - Front channel inputs only.

Switch in 4CH. position,“ACTIVE” - All Front and Rear channel inputs.

NOTE: When connecting to the 4-Channel inputs, be sure to route both

front and rear RCA cables tightly together.

High Level Input

Connect from source signal by plugging into the RCA input jacks at the

ampliﬁer. The input sensitivity ranges from 150mV-12V to accommodate

signal from high-level (speaker) input. When utilizing high-level for input

signal the auto turn-on feature is active. With the auto turn-on active, the

REM becomes an output to turn on/off up to two additional ampliﬁers or

other accessories.

Operation

illus.-4.1

illus.-4.2

illus.-4.3

illus.-4.6

TEST TONE

MUSIC

BLUE

BLUE/RED

RED

OUTPUT CLIP INDICATORS

*40Hz TONE - SUBWOOFER • 1kHz TONE - FULL RANGE

Volume

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Rockford Fosgate T400X2ad Manual

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