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SPL FX1-4000D

Class D Monoblock Amplifier

4.5

(12 reviews)

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Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • FX1 Series 1-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 1200 watts x 1 chan.
    • 2 ohms: 1700 watts x 1 chan.
    • 1 ohm: 2200 watts x 1 chan.
  • Max power output: 4000 watts x 1 chan.
  • Fully regulated PWM Power Supply
  • Wired remote bass level control included.
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost)
  • High Speed Digital Circuitry
  • Single channel operation
  • Bridging Synchronization
  • System distress indicator
  • 4-Way Protection circuitry
  • Mono speaker output connector
  • Nickel Plated Heavy Duty Power & Speaker Terminals
  • Phase Switch 0-180
  • Variable low-pass filter (50-150 Hz)
  • Subsonic Filter (15-40 Hz)
  • Frequency response: 15-150 Hz
  • Dimensions: 14.8" L x 10.3" W x 2.4"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms1200 watts x 1 channel
RMS Power @ 2 ohms1700 watts x 1 channel
RMS Power @ 1 ohm2200 watts x 1 channel
Peak Power Output4000 watts x 1 channel
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power Output4000 watts
Total RMS Power Output2200 watts
Maximum Input Gauge Size1/0 AWG
Minimum Impedance Unbridged1 ohms
Minimum Impedance BridgedNot Bridgeable
THD at Rated RMS Power.5%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency50 - 150 Hz
Subsonic Filter15 - 40 Hz
Signal-to-Noise Ratio100 dB
Channel SeparationN/A
Bass Boost0 - 18 dB
Bass/Gain RemoteYes
Fan CooledNo
Fuse Rating30A x 4 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for SPL FX1-4000D
Average Customer Rating is 4.5 out of 5 stars:
4.5
based on 12 Reviews
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Rating Distribution:
5 star:
.
.
75%
4 star:
.
.
17%
3 star:
.
0%
2 star:
.
0%
1 star:
.
.
8%
what's this?
Average Attributes Rating:
Durability
4.3
Value
4.6
Features
4.5
Design
4.4
Usability
4.4
what's this?
Quick Comparison:
Most helpful favorable review vs. Most helpful critical review
Most Helpful Customer Reviews:
February 9, 2012 SPL FX1-4000D
Review by
Michael from Miramar, FL, FL
Overall
Durability
Value
Features
Design
Usability
This amplifier is one of the best made by spl. It is very nice, clean, no faultiness and I must say does an awesome job on your bass line.
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December 30, 2011 Frickin' Love This Amp
Review by
NtownBassHead from Neopit, WI
Overall
Durability
Value
Features
Design
Usability
I had this amp on many speakers. Had it 2 12" L5's and it sounds amazing. But once i hooked up 2 15" L7's it was loud as Fu**. I love this amp, i would recomend it!
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December 26, 2011 its okay
Review by
timothy from cairo ga
Overall
Durability
Value
Features
Design
Usability
I recently bought a spl amp and it was dead on arrival so i sent it back and it is just about impossible to tune it just right i will never buy anything spl again it is cheap crap when i can go get a hifonics for the same price. You get the same out the hifonics 2000 watt that you do this 4000 watt so i would not recomend this to anybody.
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November 28, 2011 Great Value!
Review by
Kyle from Salisbury, MD
Overall
Durability
Value
Features
Design
Usability
Couldn't be better for the price. Provides a ton of power. No complaints.
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July 17, 2011 SPL and Alpine 1223D
Review by
Quan from Fredericksburg, VA
Overall
Durability
Value
Features
Design
Usability
4000 watts what more can i say, amp sounds good wit some nice features, recomended.
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View All 12 Reviews for SPL FX1-4000D
Amplifier Wiring Kits
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Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.		$3.99
Kicker X-Series RCA Interconnect CableKicker X-Series RCA Interconnect Cable
16.5 ft. of 2-Channel Interconnects with twisted pair conductors, K-cut gold plated contacts, and hyper-flex technology for easy installation!		$24.99
Monster Cable 400 Series XTREME RCA Interconnect CablesMonster Cable 400 Series XTREME RCA Interconnect Cables
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 8-cut turbine MirrorChrome connectors, and 3-way time correct windings for the ultimate RCA cable!		$69.00
StreetWires ZN9 Series Interconnect CableStreetWires ZN9 Series Interconnect Cable
16.4 ft. of 2-Channel ZN9 Cable with Rhodium-plated connectors, twisted-pair construction, and the the highest quality of signal transfer.		$54.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB0StreetWires FB0
1/0 Gauge Firewall Bushing		$4.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs		$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99
Main Product
 ProductPriceAdd?
SPL FX1-4000DSPL FX1-4000D$199.99

Product Summary

Manufacturer: SPL
Model number: FX1-4000D
UPC: 709483025059
Weight: 14.75 lbs
Internal SKU: fx14000d
Internal product ID: 9462

Price Information

$399.99

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$199.99

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Customer Testimonial

I ordered my stereo on monday dec 14. It was standard shipping. Didnt expect it to come til maybe next. But next day tuesday its here!!! So fast and so amazing!Works perfect they give you the right parts to install for free. What else can you ask for. Would definitely recommend to anyone. A++

- Luis from CA

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