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Infinity Reference 3004A (REFERENCE3004A)

400W RMS Class H Reference Series 4 Channel Car Amplifier

Infinity
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• 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 H 2 ohm Stable 4-Channel Amplifier

Learn more about the reference3004a
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List price $369.95
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$319.95

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Current Promotions (3 offers)


This offer cannot be combined with any other coupons or offers.

Infinity Reference 3004A (REFERENCE3004A)

30% off


Priced separately $399 94

Promo Savings of $24 00

Total price:

$375 94

This offer cannot be combined with any other coupons or offers.

Infinity Reference 3004A (REFERENCE3004A)

50% off


Priced separately $354 94

Promo Savings of $17 50

Total price:

$337 44

Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

Infinity Reference 3004A (REFERENCE3004A)

25% off


Priced separately $399 94

Promo Savings of $20 00

Total price:

$379 94

Description


Infinity brand icon

Authorized dealer


Infinity 3004A

Infinity's Reference 3004A amplifier will add plenty of muscle to your music without breaking a sweat, and it'll look good doing it. This 4-channel powerhouse delivers 75 watts RMS to each of the front and rear speakers in your car. Into planning ahead? You could use this amp in 2-channel mode now to drive a couple subwoofers with 200 watts RMS each, then reassign it to your front and rear speakers when you get a bigger sub amp.

Speaker-level inputs allow this amplifier to work in almost any system, even if you're keeping your car's factory radio. You can use the separate high- and low-pass filters on the front and rear channels to maximize the performance of your speakers or subs.


Product Details:

  • Reference Series Class H 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 75 watts x 4 channel
    • 2 ohm: 100 watts x 4 channel
    • Bridged: 200 watts x 2 channel @ 4 ohm
  • Total power output: 400 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • 1 pair of pre-amp outputs
  • Variable crossover allows precise system tuning
  • Low noise and distortion ensure low noise at high output levels
  • Input Level Control adjusts input sensitivity
  • Full on-board protection from shorts, high-temperature, overvoltage/undervoltage
  • Turn-on mode changes DC to REM to adapt with high/low level signals
  • Input sensitivity:
    • Low level: 200mV - 2 volts
    • High level: 2 - 20 volts
  • Frequency Response: 10 - 40000 Hz
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: >80 dB
  • Variable high-pass filter: 32 - 320 Hz
  • Variable low-pass filter: 32 - 320 Hz
  • Fuse Rating: 60A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 12-5/8" L x 7-1/8" W x 2-3/16" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: Reference 3004A

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Specifications & Details


Key Features
Amplifier Key Features
Compact Design
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
75 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
Bridged RMS Power
200 watts x 2 channel
Amplifier Specifications
Series
Reference Series
Amplifier Class
H
Number of Channels
4-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 40000 Hz
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
32 - 320 Hz
Low-Pass Crossover Frequency
32 - 320 Hz
Signal-to-Noise Ratio
>80 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Total Fuse Rating
60
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
200mV - 2 volts
High-Level Input Sensitivity
2 - 20 volts
What is in the box?
Paperwork
User manual
Warranty/Registration card
Quick start guide
WITB: Amplifiers
Amplifier
Mounting screws (6)
Two spare fuses
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

Reference 3004A

Weight:

7.00lbs

Internal SKU:

reference3004a

Internal Product ID:

183297

Customer Ratings & Reviews


Infinity Reference 3004A (REFERENCE3004A) thumbnail image

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



Durability
5
Value
5
Features
4.3
Design
5
Usability
4.8

Customer Reviews

Sort by:

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Got this as an 'open box' looks bran new to me! Still factory sealed at that.

Great value for the price on sale and great little amp by a brand you trust JBL/Infinity..

By Jonathan on November 2, 2023 Checkmark Icon Verified purchase

27 found this helpful


By clint on December 4, 2023 Checkmark Icon Verified purchase

25 found this helpful


Quality amp!!!

Very nice overall quality and design! Easy to set up and has more than enough power for a typical vehicle set up. I went with the Open Box deal and it does not look like it was ever opened in the first place! I would not hesitate to purchase again!

By Vince on March 6, 2024 Checkmark Icon Verified purchase

15 found this helpful


Looks great from the box. Two day delivery. Am waiting on a set of speakers to be exchanged and delivered to complete the set up.

By Bruce on June 23, 2025 Checkmark Icon Verified purchase




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