Garage
Shop

DLS Reference RA40

220W RMS, Class A/B 4-Channel Amplifier (Reference RA 40 -- 10-32040)

DLS
Shop all DLS
Product videos
highlight-star-icon

Reference Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 110W x 4 chan. @ 2 ohm • 220W x 2 chan. @ 4 ohm • Tuned Bass EQ (0-18 dB bass boost at 40 Hz) • Bridgeable operation • Built-in cooling fan

Learn more about the dlsra40

We apologize

This item has been discontinued

Product Highlights


Reference Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 110W x 4 chan. @ 2 ohm • 220W x 2 chan. @ 4 ohm • Tuned Bass EQ (0-18 dB bass boost at 40 Hz) • Bridgeable operation • Built-in cooling fan

Description


DLS brand icon

Authorized dealer

  • Reference Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 75 watts x 4 chan.
    • 2 ohm: 110 watts x 4 chan.
    • Bridged, 4 ohm: 220 watts x 2 chan.
  • Wired remote bass level control included
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
  • Bridgeable operation
  • Phase shift continuously variable 0-180 degrees
  • Automatic remote turn on/off on high level input without connecting any remote wire
  • Short circuit, DC offset, and thermal protection circuitry
  • Built-in cooling fan
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (20-150 Hz)
  • Variable low-pass filter (40-125 Hz)
  • Frequency response: 10-50000 Hz
  • Dimensions: 14.1"L x 9.65"W x 2.33"H
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(41)

$209.99

List price $239.99

NDA6004 small

NVX NDA6004

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(14)

$159.99

List price $215.99

VAD10004v2 small

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(25)

$279.99

List price $335.99

RD400/4 small

JL Audio RD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(28)

$379.99

List price $379.99

JD400/4 small

JL Audio JD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(34)

$299.99

List price $299.99

MFA 4.220 small

Deaf Bonce MFA 4.220

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$289.90

List price $289.90

MFA 4.180 small

Deaf Bonce MFA 4.180

• 180 watts x 4 channel @ 4 ohm
• 270 watts x 4 channel @ 2 ohm
• Bridged: 540 watts x 2 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$259.90

List price $259.90

MVPA4 small

NVX MVPA4

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(70)

$279.99

List price $383.99

MDX2000.4 2 Ohm small

PRV Audio MDX2000.4 2 Ohm

• 330 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$219.91

List price $274.89

GM-DX874 small

Pioneer GM-DX874

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable 4-Channel Amplifier

(14)

$220.00

List price $300.00

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
75 watts x 4 channel
RMS Power @ 2 ohms
110 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
220 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
440 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
20 - 150 Hz
Low-Pass Crossover Frequency
40 - 125 Hz
Signal-to-Noise Ratio
100 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
Yes
Fuse Rating
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

DLS

Model Number:

RA40

Weight:

12.00lbs

Internal SKU:

dlsra40

Internal Product ID:

10510

Product and How-to Videos


Customer Ratings & Reviews


DLS Reference RA40 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
4
Features
5
Design
4
Usability
5

Customer Reviews

Sort by:

Loading...

Phase Shift is Cool

I just love the phase shift function!! It helps a lot in bring the bass sound to the front soundstage. Previously, i have to invert the polarity to change the phase of my bass. However, it does improve a bit, but my bass is like coming from the mid of my car. With the phase shift from DLS RA amp, i can more fine tune the bass and now my front soundstage is so COMPLETE!

By Kean on January 18, 2008

15 found this helpful




08ZX850.2 small

Kicker 08ZX850.2

850W RMS, 2-Channel ZX Series Amplifier (ZX850.2, 08ZX8502, ZX8502)

(2)

$319.99

List price $749.99

Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.