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PAC LPA-2.4 LocPro Advanced

4-channel active line output converter — 2-channel in, 4-channel out

Item # 541LPA24

One of the best ways to add an amplifier or powered subwoofer to a factory system is with a line output converter...

One of the best ways to add an amplifier or powered subwoofer to a factory system is with a line output converter...

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Item # 541LPA24

In stock
$119.00

Since 1974

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About the PAC LPA-2.4 LocPro Advanced

Hook into your car's factory system

One of the best ways to add an amplifier or powered subwoofer to a factory system is with a line output converter (LOC), which reduces the factory system's high-level outputs down to the preamp-level signals your aftermarket amp can handle. PAC's LPA-2.4 LocPro Advanced line output converter will work with just about any factory system, even amplified premium systems, to help you add an aftermarket amplifier in your vehicle.

Hook into your car's factory system

One of the best ways to add an amplifier or powered subwoofer to a factory system is with a line output converter (LOC), which reduces the factory system's high-level outputs down to the preamp-level signals your aftermarket amp can handle. PAC's LPA-2.4 LocPro Advanced line output converter will work with just about any factory system, even amplified premium systems, to help you add an aftermarket amplifier in your vehicle.

Integration features

The LPA-2.4 active line output converter lets you add an amp without affecting the existing factory system — you just tap into the wires going to a pair of full-range speakers for the LPA-2.4's inputs. Selectable load resistance and ground isolation options ensure trouble-free OEM integration. Gain control with clip lights adjust the signal level for optimum strength and fidelity. A low-pass filter and bass boost fine-tune the bass to sound its best. An optional wired remote is available, so you can control the bass level from your front seat.

For adding a sub and amp or boosting four channels

This line output converter will let you add both a subwoofer amp for bass and a 2-channel amp to power your system's front stage, for example. The 4-channel LPA-2.4 can also be used when adding a 4-channel amp to upgrade the power of your sound system. You will, however, lose your system's front-to-rear fade function, when using this line output converter. PAC offers vehicle-specific T-harnesses that'll greatly simplify installing this LOC in a select number of vehicles with non-amplified factory stereos.

READ LESS

Product highlights:

  • 4-channel active line output converter
    • 2 channels in, 4 channels out — no fade function
  • designed to work with most factory systems
  • speaker-level inputs (0.5-40V)
    • can handle up to 400 watts RMS per channel
    • selectable input loads for OEM integration (20, 60, or 20,000 ohms)
  • dual variable gain controls with clip indicators
  • selectable low-pass filter (250 Hz) on rear channels
  • variable bass boost (0-12dB at 45 Hz) on rear channels
  • up to 9.5 Vrms output
More info:
  • stamped steel chassis
  • optional PAC LPA-REM wired remote bass level controller available
  • selectable ground isolation (GND, ISO, 200-ohm)
  • auto turn-on via DC offset/signal detect or remote trigger
    • 12-volt turn-on lead output
  • wiring, fuse, and hardware not included with device
    • 18-gauge power and ground leads and a 1-amp fuse recommended
  • dimensions: 4-3/4"W (5-7/8" with cables), 1"H, 3"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # LPA-2.4

What's in the box:

  • 4-Channel line output converter
  • 2 Phoenix terminals (installed)
  • Four 5/8" Screws
  • Quick start guide

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More details on the PAC LPA-2.4 LocPro Advanced

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Product Research

Features

Overview: The LPA-2.4 is an active 4-channel line output converter designed for adding aftermarket amplifiers to a factory radio. There is one pair of speaker level inputs, compatible with most factory stereo systems, that will accommodate up 40 volts per channel (equivalent to 400 watts at 4Ω) and two pair of stereo RCA outputs.

Connections:

  • Power: removable 4-pin Phoenix terminal; accommodates bare wire up to 12-gauge
    • +12 volts: fused constant +12 volt source (neither a fuse nor a fuse holder is included)
    • Ground: chassis ground
    • Remote In: unit turns on when +12 volts is applied to this terminal
    • Remote Out: +12 volt output when unit is on (used to turn on an amp)
  • Speaker Level Inputs: removable 4-pin Phoenix terminal; accommodates bare wire up to 12-gauge
  • Line Outputs: two pair of stereo RCA jacks; front and rear
  • Remote: RJ-14 jack for an optional wired remote control; item number 541LPAREM (sold separately)

Clip Indicators: Independent LEDs for the front and rear channels indicate when the output signal is too high and is clipping, making it easy to maximize the output levels without distortion.

Controls:

  • Load Select: 3-position switch; 20Ω, 60Ω, or 20kΩ; use the lower settings to simulate a speaker load if required by the factory radio
  • Low Pass Filter: 2-position switch; on/off; a 250 Hz low pass filter can be engaged for the rear channel outputs
  • Bass Boost: rotary dial; 0-12 dB; when the low pass filter is engaged, bass boost can be added to the rear channel outputs; centered at 45 Hz
  • Gain: independent rotary dials for the front and rear outputs; -27.3 to +3.2 dB range
  • Ground Isolation: 3-position jumper; Ground, ISO (isolated), or 200Ω; change the position in the case of ground loop noise

Specifications:

  • Maximum Input Voltage: 40 volts/400 watts at 4Ω (using the 20kΩ input impedance)
  • Maximum Output Voltage: 9.5 volts RMS
  • DC Offset Range: 3-7 volts
  • Input Load: 20Ω, 60Ω, or 20kΩ
  • Output Impedance: <120Ω
  • Output Gain: -28 dB to +1 dB
  • Signal to Noise Ratio: >110 dBA at 6.4 volts output
  • THD+N: <0.01%
  • Input Sensitivity: 0.5-40 volts
  • Frequency response: 10 Hz-20 kHz
  • Current Draw: 40mA (max)
  • Low Pass Filter: 250 Hz (switchable, rear output only)
  • Bass Boost: 0-12 dB centered at 45 Hz (rear output only)
  • Dimensions:
    • Width: 4¾" (5⅞" including cables)
    • Height: 1"
    • Depth: 3"

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