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Amplifier Owner’s Manual

© 2018 Phoenix Gold • www.phoenixgold.com  

SPECIFICATIONS

IMPORTANT: A power birth certificate is included for each amplifier. RX2 amplifiers are 

conservatively rated and will exceed their RMS power rating shown here. All RMS power 

ratings and measurements are at 14.4 volts with no more than 1% THD.

SPECIFICATIONS

Remote Bass Controller:

Under dash or console mountable level controller. Fine tune your bass 

output with a simple turn of the precision controller. Amplifier Status LED for 

easy reference of amplifier. 16ft of cable included.

 

RX2 750.5 SPECIFICATIONS

RMS Power Ratings listed at less than 1% THD @ 14.4v 

Number of Channels:  

5

4Ω: CH 1-4 

60W x 4 

2Ω: CH 1-4 

90w x 4  

4Ω: CH 5 

250W x 1 

2Ω: CH 5 

400w x 1

Total RMS Power (Sum of rated power):  760W

Bridgeable:  

Yes

Crossover Control, Linkwitz-Riley: 

FLAT/HP/LP

 

50Hz - 200Hz @ 12dB/Oct 

Input Selection:  

207mV-5.2v 

Signal to Noise (@ CEA Standard): 

80.1dB

Frequency Response: 

Full Range 10-40k 

 

 

Sub 15-200Hz

Topology Class 

D

Heatsink Type: 

Extruded Aluminum

Cooling Type:  

Radiation 

Operating Voltage:  

8V to 16V

Switchable Auto-Turn On: 

Yes

Power Supply Type: 

Unregulated 

 

Onboard Thermal Management

Power Terminal: 

4 Gauge 

Speaker Terminal: 

12 Gauge

Recommended Fusing: 

3 x 35A 

Dimensions (L x W x H): 

11.81” x 8.11” x 1.98”

 

 

300mm x 206mm x 50.5mm

11.81in /300.00 mm

8.

11

in /

20

6.

00 m

m

1.

98

in

/5

0.

5 m

m

8.11in /206.00 mm

11.81in /300.00 mm

8.

11

in /

20

6.

00 m

m

1.

98

in

/5

0.

5 m

m

8.11in /206.00 mm

11.81in /300.00 mm

8.

11

in /

20

6.

00 m

m

1.

98

in

/5

0.

5 m

m

8.11in /206.00 mm

Summary of Contents for RX2 400.4

Page 1: ...rading your stock system easy by allowing high level inputs so you can keep the OEM radio and still upgrade the sound RX2 series amplifiers are ready to impress with their effortless ability to provide power and clarity while keeping the chassis at a convenient size for any installation The devil is in the details so it just made sense that we allow the PG name plate to be removed and turned to ma...

Page 2: ... Channels 5 4Ω CH 1 4 60W x 4 2Ω CH 1 4 90w x 4 4Ω CH 5 250W x 1 2Ω CH 5 400w x 1 Total RMS Power Sum of rated power 760W Bridgeable Yes Crossover Control Linkwitz Riley FLAT HP LP 50Hz 200Hz 12dB Oct Input Selection 207mV 5 2v Signal to Noise CEA Standard 80 1dB Frequency Response Full Range 10 40k Sub 15 200Hz Topology Class D Heatsink Type Extruded Aluminum Cooling Type Radiation Operating Volt...

Page 3: ... Mode 4Ω 1 2 4Ω 2 4 bridged 75w x 2 200 x1 3CH Mode 2Ω 1 2 4Ω 2 4 bridged 100w x 2 200 x1 Total RMS Power Sum of rated power 400W Bridgeable Yes Crossover Control Linkwitz Riley FLAT HP LP 50Hz 200Hz 12dB Oct Input Selection 207mV 5 2v Signal to Noise CEA Standard 80 1dB Frequency Response Full Range 10 40k Topology Class A B Heatsink Type Extruded Aluminum Cooling Type Radiation Operating Voltage...

Page 4: ... input level signal on the Rear channels Continuously variable from 0 2V to 6V Adjust this with the help of a DMM and a test signal or an Oscilloscope See System Tuning section for setup instructions REAR FRONT AND SUB INPUTS Connect preamp signal cables from headunit to these inputs These inputs are controlled by the MODE switch Be sure to select the correct mode for the amount of inputs you will...

Page 5: ...ted to the fused positive terminal 12V of the car s battery A fuse must be located within 18 inches of the battery to protect the vehicle and should be fused at or above the amplifiers fuse rating REMOTE This must be connected to switched 12V usually a trigger wire coming from the head unit or an ignition lead if one is not available GROUND This must be connected to the negative terminal of the ca...

Page 6: ...ve 4ch of signal You will have full control from your source unit for front and rear levels FRONT REAR INPUTS Connect preamp signal cables from headunit to these RX2 400 4 MULTI CHANNEL POWER AMPLIFIERS inputs These inputs are controlled by the MODE switch Be sure to select the correct mode for the amount of inputs you will be using for your installation GAIN REAR FRONT Used to adjust the input se...

Page 7: ...o unit and voiding the warranty BATT This must be connected to the fused positive terminal 12V of the car s battery A fuse must be located within 18 inches of the battery to protect the vehicle and should be fused at or above the amplifiers fuse rating REMOTE This must be connected to switched 12V usually a trigger wire coming from the head unit or an ignition lead if one is not available GROUND T...

Page 8: ...eck voltage at the amplifier with a DMM volt meter 12v and R with head unit on the voltage should register between 11 5V and 14 4V when using the attached ground lead of the amplifier Check that the amplifier s ground is good and has a solid connection Check fuse at the battery Use a meter to verify connection from one end of the fuse to the other breaks may not always be visible If the fuse is bl...

Page 9: ...l at its discretion repair or replace the defective product with new or remanufactured product at no charge Damage caused by the following is not covered under warranty accident misuse abuse product modification or neglect failure to follow installation instructions unauthorized repair attempts misrepresentations by the seller This warranty does not cover incidental or consequential damages and do...

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