SPL GRLA840/4: main picture thumbnail SPL GRLA840/4: alternate picture thumbnail SPL GRLA840/4: alternate picture thumbnail SPL GRLA840/4: alternate picture thumbnail SPL GRLA840/4: alternate picture thumbnail

SPL GRLA840/4

840W 4-Channel Class A/B Gorilla Series Car Amplifier

  • 3.5

(2 reviews)

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The product on this page is discontinued, but there is a newer model available:
Newer Model: SPL GLA4-900
SPL GLA4-900 thumbnail
$84.99 In Stock

Specials with this product

  • Free Ground Shipping to the 48 statesdetails

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Customer Testimonial

I needed an iPod adapter for an old Pioneer Deck. In this age of rapidly changing hardware, it was very pleasing to find the perfect item I needed.

Thank you for the service. Arrived in just a couple of days!

- George from Fairfield, CA

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  • Gorilla Series 4-Channel Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 95 watts x 4 chan.
    • Bridged, 4 ohms: 190 watts x 2 chan.
  • Max power output: 840 watts
  • MOSFET power supply
  • Pulse width modulation circuitry
  • Remote bass level input (remote level control sold separately)
  • LED power indicators
  • Bass Boost (0-18 dB bass boost at 45 Hz)
  • Tri-Mode capable
  • 4/3/2 channel operation
  • 2 Ohm stereo, 4 ohm mono stable
  • Preamp RCA outputs
  • 3-Way system protection circuitry (short, thermal and overload)
  • Gunmetal gray anodized finish with chrome accents
  • Heavy duty aluminum alloy heatsink
  • RCA level inputs
  • Screw terminals
  • Low level inputs (200mV-8V)
  • Variable high-pass filter (40-250 Hz, 12 dB/octave)
  • Variable low-pass filter (40-250 Hz, 12 dB/octave)
  • Frequency response: 10-30,000 Hz
  • Dimensions: 10"L x 8-1/4"W x 2-1/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product History:

SPL GLA4-900 thumbnail
(newest, current model)
SPL GRLA840/4 thumbnail
(previous model, replaced by SPL GLA4-900)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms 80 watts x 4 channels
RMS Power @ 2 ohms 95 watts x 4 channels
RMS Power @ 1 ohm Not Stable
Bridged RMS Power 190 watts x 2 channels
Amplifier Specifications
Amplifier Class AB
Number of Channels 4
Total Peak Power Output 840 watts
Total RMS Power Output 380 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power 0.02%
Speaker Level Inputs No
Preamp Outputs No
Built-in Crossover Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency 50 - 500 Hz
Low-Pass Crossover Frequency 30 - 250 Hz
Signal-to-Noise Ratio 97 dB
Bass Boost 0 - 12 dB
Bass/Gain Remote No
Fan Cooled No
Fuse Rating 25A x 1 
CEA-2006 Compliant No
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
Customer Review Summary for SPL GRLA840/4
Average Customer Rating is 3.5 out of 5 stars:
  • 3.5
based on 2 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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50%
4 star:
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3 star:
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what's this?
Average Attributes Rating:
Durability
  • 3.0
3.0
Value
  • 4.5
4.5
Features
  • 3.5
3.5
Design
  • 3.5
3.5
Usability
  • 3.5
3.5
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
May 17, 2012 excellent value for the money
Review by
bubba j from nashville,tenn
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 5.0
I love this amp. It has guts, power and it can push more than stated. I had it pushing 10 speakers: 2-6x9, 2-5x7, 6-Pyle Plus 1" dome tweeters. I have not had any problem with this amp at all. It does not even get hot. I highly recommend this product. The SPL-GRLA840/4 sounds great.
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March 22, 2012 It's ok
Review by
got8 12s from Jackson, TN
Overall
  • 2.0
Durability
  • 1.0
Value
  • 4.0
Features
  • 2.0
Design
  • 3.0
Usability
  • 2.0
It's great till it overheats. I sent mine back. Doesn't push the power it claims!
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Product Summary

Manufacturer: SPL
Model number: GRLA840/4
UPC: 709483031050
Weight: 6.80 lbs
Internal SKU: grla8404
Internal product ID: 37254