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RE Audio BT900.4

480W RMS 4-Channel BT Series Class AB Bluetooth Car Amplifier

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• RMS Power: 80W x 4 @ 4 ohms, 120W x 4 @ 2 ohms
• Built-In Bluetooth Allows for Direct Access to Your Sound System
• Variable High and Low Pass Filters
• Dimensions: 7.4" W x 12.6" L x 2.2" H

Learn more about the bt9004

We apologize

This item has been discontinued

Product Highlights


• RMS Power: 80W x 4 @ 4 ohms, 120W x 4 @ 2 ohms
• Built-In Bluetooth Allows for Direct Access to Your Sound System
• Variable High and Low Pass Filters
• Dimensions: 7.4" W x 12.6" L x 2.2" H

Description


RE Audio brand icon

Authorized dealer


Bluetooth Sound without the Headunit

Have you ever wanted to add Bluetooth functionality to your car without opening up your dash and installing a costly new headunit? The new RE Audio BT900.4 Bluetooth amplifier allows you to do just that. This innovative 4-channel 480 watt RMS amp has integrated Bluetooth so you can stream your favorite music straight to your sound system, no headunit required. The Bluetooth has outstanding range, allowing you to stream your music from across a parking lot if you ever want to show off. An RCA input also allows the BT900.4 to be used as a traditional amplifier with your headunit. With on-board overload, short circuit, over heat and under voltage system protection, this amp will be a perfect, long term addition to your sound system. Being unable or unwilling to install a new headunit in your car is no longer an excuse to not have Bluetooth!




Sonic Electronix Power Certified Amplifier

RE Audio's BT900.4 4-channel amplifier is a Sonic Electronix Certified Amplifier. This amp's power output has been professionally tested with our SMD Amplifier Dyno, bringing you it's true power ratings. Learn more about this amp's Sonic Electronix Certified Power Here!

Impedance
Claimed Output
Certified Results
Dynamic Results
4 Ω
80 @ 14.4v
120W @ 14.77v
230W @ 14.83v
2 Ω
120W @ 14.4v
155W @ 14.83v
167W @ 14.85v
Bridged, 4 Ω
230W @ 14.4v
245W @ 14.77v
277W @ 14.83v



General Features:

  • BT Series 4-Channel Bluetooth Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 120 watts x 4 chan.
    • Bridged, 4 ohms: 230 watts x 2 chan.
  • Sonic Electronix Certified Power Rating*:
    • 4 ohms: 95 watts x 4 chan.
    • 2 ohms: 155 watts x 4 chan.
    • Bridged, 4 ohms: 245 watts x 2 chan.
  • Built-in Bluetooth allows you to bypass connecting with your headunit
    • Works with most Bluetooth enabled devices
    • Bluetooth Range: Up to 30 feet (10m)
    • Intelligent switching between Bluetooth® and RCA signal
    • Automatic Bluetooth® on and off
    • Bluetooth antenna included
  • Accepts Bluetooth audio signal and RCA input
  • Intelligent switching between Bluetooth and RCA signal
  • Bluetooth audio and remote turn on signals can be passed to other amplifiers
  • 4 or 2 channel operation
  • SMD dedicated audio chip device
  • Full MOSFET DC-DC PWM power supply
  • ROHS compliant production technique
  • Variable high-pass filter: 50 - 500 Hz
  • Variable low-pass filter: 50 - 500 Hz
  • Input Level : 0.2 V ~ 5 V
  • Frequency Response: 10 - 3,500 Hz
  • Sampling Frequency: 44.1 KHz
  • Radio Frequency: 2.4GHz
  • Total Harmonic Distortion: < 0.1%
  • Signal to Noise Ratio: > 90dB
  • Channel Separation: > 60dB
  • Bluetooth Receiver Sensitivity: < -80dBm
  • Overload, short circuit, overheat and under voltage protection
  • 8 gauge power and ground wiring is required for installation
    • Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier
  • Dimensions: 7.4"W x 12.6"L x 2.2"H
  • Marinised version available: RE Audio BT900.4M
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

*The Sonic Electronix Certified Power Ratings listed are based on a test of a specific sample amplifier. Actual power ratings may slightly vary between amps.

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
80 watts x 4 channel
RMS Power @ 2 ohms
120 watts x 4 channel
Bridged RMS Power
240 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
480 watts
Total RMS Power Output
320 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
<0.1%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 500 Hz
Low-Pass Crossover Frequency
50 - 500 Hz
Signal-to-Noise Ratio
>90 dB
Channel Separation
>60 dB
Sonic Certified Amplifier
Yes
Amp Bluetooth Connectivity
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BT900.4

Weight:

10.00lbs

Internal SKU:

bt9004

Internal Product ID:

88218

Product and How-to Videos


  • RE Audio Bluetooth Car Amplifier | CES 2013
  • RE Audio New Product Line Overview | CES 2015
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



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



Durability
4.5
Value
4.5
Features
5
Design
5
Usability
5

Customer Reviews

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Underrated

Very powerful and clean amplifier. it does 150W just under 3/4 gain. It reached 115 degrees F after 45 minutes of running about 110 - 120 watts. ONE THING I WISH I KNEW: It easily accepts 4 gauge wire! both sonics and RE have it listed at max input of 8 ga. No need to order gauge adapters like i did.
Bluetooth works better than any device I've ever used. never broke up once and i had my phone in my pocket circling the truck most of the day. BE SURE YOUR VOLUME IS ON LOW WHEN YOU ACTIVATE BLUETOOTH. I had matched the amps based on a 3v preout from my line converter but with the bluetooth connection the power far exceeded what i matched too.
Its a rock solid amp with a beautiful aluminum case and sturdy knobs.
another thing to mention is to note that it only has 2 input channels (left and right) and 4 outputs (left front, left rear, ect)

By Joe on November 3, 2015 Checkmark Icon Verified purchase

2

found this helpful.

Great for classic car

Used in my 1969 resto-mod... This amp is awesome! Didn't want to hack up dash with an aftermarket radio, wired speakers directly to amp and use cell phone to control audio. This is a must have in the classic car workld, old looks modern sound. The best feature has to be the 13v power trigger amp will not switch on until it sees 13v

By Goose on May 20, 2016

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