Stetsom HL 400.1 Digital Amplifier – 400W RMS 2 Ohm
Sold by AudioSellerz.com, the Stetsom HL 400.1 is a compact digital monoblock amplifier designed for subwoofers, midbass drivers, motorcycles, powersports vehicles, and small car audio systems that need clean, efficient power. Its compact footprint makes it easy to install in locations where larger amplifiers simply will not fit.
The HL series was developed to deliver reliable performance while maintaining excellent efficiency and low current draw. Whether you're upgrading a factory system, building a motorcycle audio setup, powering a small subwoofer, or adding bass to a daily driver, the HL 400.1 provides dependable power in a small package.
Its Class D design helps maximize efficiency while minimizing heat generation, making it ideal for compact installations. The amplifier features built-in crossover controls that allow you to properly tune your system for better overall performance and sound quality.
Perfect for:
Small subwoofer systems
Motorcycle audio systems
Powersports builds
Compact car audio installs
Daily driver bass upgrades
Space-limited installations
If you're looking for a compact amplifier that delivers reliable bass performance without taking up valuable space, the Stetsom HL 400.1 is an excellent choice.
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Rick Bame
Fantastic quality on this alternator from what I can tell, unfortunately mthe vehicle it was intended for was totaled the day after I received the alternatory so I cant confirm it's performance. I will say the included instructions were very detailed and clear and rhe bench tested output certificate was a nice touch, I have no doubt this is an amazing product for an amazing price. The guys at Audio Sellerz are top notch customer service too...
1996-2011 Subaru 2.0L 2.5L 3.0L 3.6L Brand X High Output Alternator
Adam Faulkner
Best in the business
Audio Sellerz Blue Snapback Hat
Rick Donatto
The amp works great andI got it in a few days. They had the amp cheaper then anywhere else
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2012-2015 Honda Civic 1.8L 200-350 Amp Plug and Play Brand X High Output Alternator
Todd Burton
Great service awesome people love this place will be buying more stuff to come
Sky High Car Audio BMX Series 18" Subwoofer – 2500W RMS D1/D2
Richard Cisco
I recently had a pair of 1 inch JL audio pillar mount tweeters and you could barely hear him so somebody told me that I should try to purchase a pair of yards so I purchased the 2 inch and put them in the tweeters and you could barely hear him so somebody told me that I should try to purchase a pair of yards so I purchased the 2 inch and put them in the side panels and they were completely day and night. Yours were just outstanding and they were great hands down there’s no comparison to. JL Audio. Yours were the best and I ordered a second set.
