XPA SERIES OPERATION

Troubleshooting

Problem

Cause

Action

Unit will not turn on

+12V wire not connected or incorrect voltage

Check connections for proper voltage

(no power LED indicator)

REM wire not connected or incorrect voltage

(11~16VDC)

 

 

 

 

 

 

GND wire not connected

Check connection to ground

 

 

 

 

 

 

Fuse(s) blown

Replace fuse(s)

 

 

 

 

Unit has power - LED is

Speaker wires not connected

Check connections at speakers

green (but no sound)

 

 

Volume turned all the way down

Increase volume level at head unit

 

 

 

 

 

 

 

 

One or more speaker wires touching each

Insulate all bare speaker wires from each

 

 

other or touching chassis ground

other and chassis ground

 

 

 

 

 

 

Speaker(s) defective or damaged

Check/replace speaker(s)

 

 

Input signal not connected

Check high or low level inputs for proper

 

 

 

connection

Unit blows fuse(s)

Incorrect fuse rating

Use fuse(s) with correct rating

 

 

+12V wire touching chassis ground

Check for pinched wire

 

 

 

 

 

 

Speaker(s) defective or damaged

Check/replace speaker(s)

 

 

 

 

Engine noise

Bad ground connection

Make sure amplifier is grounded to clean

 

 

 

bare metal

 

 

Signal ground loop or RFI (radio frequency

Re-route RCA cables from existing high

 

 

interference)

current wiring

LED illuminates red

One or more speaker wires touching each

Insulate all bare speaker wires from each

(protect mode)

other or touching chassis ground

other and chassis ground

 

 

Speaker(s) defective or

Check/replace speaker(s)

 

 

damaged internally (shorted)

 

 

XPA2100

Speaker load less than 2 ohms (stereo)

Adjust speaker load - amplifier will not

 

XPA4100

Speaker load less than 4 ohms (bridged)

operate at less than 4 ohms when bridged

 

XPA6100

Speaker load less than 2 ohms

Adjust speaker load - amplifier will not

 

 

 

operate at less than 2 ohms

Distorted audio output

Incorrect input signal type or

Check connections and reduce/adjust

 

 

input level too high

input level

Low audio output

Incorrect input signal type or

Check connections and increase/adjust

 

 

input level too low

input level

Weak bass

Speaker(s) are wired out of phase

Check (+) and (-) speaker connections

 

 

 

(Observe correct polarity)

Dual Electronics Corp.

Toll Free: 1-866-382-5476

www.dualav.com

©2008 Dual Electronics Corp.

NSA0208-V02

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Dual XPA2100, XPA6100, XPA4100 owner manual Troubleshooting, Problem Cause Action, Dual Electronics Corp Toll Free

XPA4100, XPA6100, XPA2100 specifications

The Dual XPA series amplifiers, specifically the XPA6100, XPA4100, and XPA2100, represent a pinnacle of performance and versatility in the audio amplification realm. Designed for audiophiles and serious home theater enthusiasts, these amplifiers deliver exceptional sound quality, robust construction, and advanced technologies tailored to enhance the listening experience.

The Dual XPA6100, a powerhouse in this lineup, boasts a six-channel design capable of delivering 600 watts of power at 4 ohms. This amplifier is ideal for driving multi-channel speaker setups, ensuring that each speaker receives a clean, dynamic signal. With its high damping factor, the XPA6100 excels at controlling speaker movement, resulting in tighter bass response and improved clarity across the audio spectrum. The integration of advanced thermal management technology ensures that the amplifier operates efficiently without overheating, even during extended listening sessions.

Moving on to the XPA4100, this four-channel model maintains formidable performance while providing 400 watts of power at 4 ohms. This unit perfectly balances power and efficiency, making it suitable for both home theater systems and high-end stereo setups. The XPA4100 features a low-noise design, ensuring that the signal remains pristine and free of interference. This attention to detail means audiophiles can experience music and movie soundtracks precisely as intended by the creators.

The XPA2100 rounds out the series with its two-channel configuration, delivering 200 watts per channel at 4 ohms. This model is particularly appealing for those who prioritize stereo sound, offering a rich, immersive listening experience. Its compact design makes it easy to integrate into any audio setup, while still providing robust power to drive high-performance speakers effectively. The XPA2100 also features a range of connectivity options, making it versatile enough to work with various media sources.

Across the entire Dual XPA series, users will find features such as gold-plated RCA inputs for superior connectivity, adjustable gain controls for precise audio tuning, and a heavy-duty metal chassis that minimizes vibration and resonance. Additionally, these amplifiers are engineered with advanced circuitry to optimize efficiency and minimize distortion, ensuring that all audio signals are reproduced with utmost fidelity.

In conclusion, the Dual XPA6100, XPA4100, and XPA2100 amplifiers offer an impressive combination of power, performance, and advanced technological features. Whether for a full-blown home theater or a dedicated music listening room, they provide the versatility and sound quality that discerning listeners demand.