Manual Rockford Fosgate P400X1 (page 10 of 12) (English)

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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.

Pass Thru

The pass-thru RCA’s are passive, including full input signal range and auto

turn-on functionality when active. When utilizing Pass Thru jacks, up to

two additional ampliﬁers can be connected together.

Infrasonic Filter

The 28Hz 12dB/octave infrasonic ﬁlter limits the amount

of low frequency information going to the woofer.

NOTE: We recommend using the infrasonic ﬁlter when using vented en-

closures with this ampliﬁer.

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 “Level Control” is linked and allows you to

remotely control the output level of the ampliﬁer from the dash or

center console.

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

position sets the ampliﬁer to the High

Pass mode, enabling frequencies above the cut-off point to pass, adjust-

able 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 con-

nection 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.

Subwoofer Input Switch (P1000X5)

Setting this switch to the Off position, utilizes the front

inputs, allowing connection to only the front inputs with

a subwoofer output. Setting this switch to the On position

uses sub input.

Output controls function the same as if the ampliﬁer was in 5-channel

mode.

All “ACTIVE” inputs must have RCA jacks connected.

Switch in FRONT. position,“ACTIVE” - Front channel inputs only for sub

output. Switch in SUB position,“ACTIVE” - Sub inputs for sub output.

NOTE: When connecting to the 5-Channel inputs, be sure to route front,

rear and sub 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

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 Operation

illus.-3.1

illus.-3.2

illus.-3.3

illus.-3.4

illus.-3.5

illus.-3.6

illus.-4.1

illus.-4.2

illus.-3.9

illus.-3.8

illus.-3.7

illus.-4.3

illus.-4.4

illus.-4.5

illus.-4.6

Volume

REMOTE

PUNCH LEVEL

INPUT CLIP PASS-THRU REARFRONT

RIGHT

LEFT

RIGHT

LEFT

PLC-OUTPLC-IN

REMOTE

PUNCH LEVEL

INPUT CLIP PASS-THRU REARFRONT

RIGHT

LEFT

RIGHT

LEFT

PLC-OUTPLC-IN

Volume

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Rockford Fosgate P400X1 Manual

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