Sparked Builds Alpha — Premium features are free while we improve.See What's New

Home/Equipment/Amplifiers/Stetsom
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)
HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)

HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)

Developed for those seeking high performance and sound fidelity in automotive amplifiers. The HL800.4, is a 900W RMS product with 4 CHANNELS OF 225W RMS and great installation versatility. It offers independent front and rear channels such as LEVEL to adjust the input signal level and Crossover, allowing you to choose between LOW-PASS, HIGH-PASS or FLAT (FULL-RANGE) operation. TIPS ON INSTALLATION POSSIBILITIES: 16 tweeters/drivers being 4 in parallel per channel. 2 channels in 400W Bridge in 4 Ohms (Front, Rear). 3 channels being two independent of 200W and one in Bridge of 400W. Tri-mod mode with a 4-ohm speaker in bridge + 2 horns or 2 super twitters per channel. TECHNICAL SPECS (1 Ohm): Number of Channels: 4 RMS Power at 1 Ohm 12.6V: 4 x 226W RMS (STEREO) RMS Power at 2 Ohm 12.6V: 2 x 144W RMS (STEREO) RMS Power at 1 Ohm 13.8V: 4 x 260W RMS (STEREO) RMS Power at 2 Ohm 13.8V: 4 x 204W RMS (STEREO) Power @ 12.6V Bridge 2 Ohms: 2 x 430W RMS Power @ 13.8V Bridge 2 Ohms: 2 x 520W RMS Power Supply: 9 ~ 15V Frequency Response: 20 Hz ~ 22 KHz Low Pass Crossover: 90 Hz High Pass Crossover: 90 Hz Bass Boost (Low Pass): +12 dB Minimum output impedance: 1 Ohm (STEREO) / 2 Ohms (BRIDGE) Musical Consumption: 52.5A BASS Consumption: 105A Dimensions (H x W x L): 2.5" x 8.1" x 8.1" Weight: 3.7 lb TECHNICAL SPECS (2 Ohms): Number of Channels: 4 RMS Power in 2 Ohms 12.6V: 4 x 225W RMS (STEREO) RMS Power in 4 Ohms 12.6V: 4 x 140W RMS (STEREO) RMS Power in 2 Ohms 13.8V: 4 x 260W RMS (STEREO) RMS Power in 4 Ohms 13.8V: 4 x 165W RMS (STEREO) Power @ 12.6V Bridge 4 Ohms: 2 x 450W RMS Power @ 13.8V Bridge 4 Ohms: 2 x 520W RMS Power Supply: 9 ~ 15V Frequency Response: 10Hz ~ 26KHz Low Pass Crossover: 90 Hz High Pass Crossover: 90 Hz Bass Boost (Low Pass): +12 dB Minimum output impedance: 2 Ohm (STEREO) / 4 Ohms (BRIDGE) Musical Consumption: 44A BASS Consumption: 88A Dimensions (H x W x L): 2.5" x 8.1" x 8.1" Weight: 3.7 lb Download Manual

Specifications

class
D
channels
4
rms watts
900 W
Compare Prices(1 retailer)
Sparked Innovations
Sparked InnovationsBest Price
Available
$239.99
$274.99Save 13%
Updated 11/11/2026
Also check Amazon

Search for this product on Amazon

Prices and availability may vary. Click to verify current pricing at retailer.

Need this installed?

Browse 52+ professional car audio installers in our network

Find an Installer

Frequently Asked Questions

What is the Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)?

The Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED) is car audio equipment made by Stetsom.

How much does the Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED) cost?

See the recorded retailer prices in the "Where to Buy" section. Prices and availability can change; confirm both with the retailer before purchasing.

Where can I buy the Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED)?

The "Where to Buy" section lists retailers we have recorded carrying the Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED). Check each listing's availability and confirm warranty coverage with the retailer.

Customer Reviews

-

0 reviews

5
0
4
0
3
0
2
0
1
0

Sign in to write a review

Loading reviews...

No Builds Yet

Be the first to showcase a build with this Amplifier!