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

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
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Specifications

class
D
channels
4
rms watts
900 W
Compare Prices(1 retailer)
Sparked Innovations
Sparked InnovationsBest Price
Available
$274.99
Updated 3/24/2026
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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 a car audio equipment made by Stetsom. View full specifications and where to buy on this page.

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

The Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED) typically sells for around $160 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

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

You can purchase the Stetsom HL 800.4 Class D Full Range Amplifier 4 Channel 800 Watts (DISCONTINUED) from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.

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