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The Wet Sounds STX MICRO-4 Compact Chassis Class-D 4-Channel Marine Amplifier is engineered for marine and powersports audio systems where installation space is limited but high-performance amplification is essential. Featuring a fully sealed die-cast aluminum chassis, the STX MICRO-4 is built to withstand water, dirt, vibration, and harsh environmental conditions while delivering reliable, consistent audio performance.
Its high-efficiency Class-D design provides strong multi-channel output with minimal heat generation, making it ideal for mounting in confined spaces such as under seats, behind panels, or inside storage compartments. The compact footprint allows for flexible installation without sacrificing power or sound quality.
The STX MICRO-4 features a 3.5mm signal input for seamless integration with Wet Sounds Bluetooth controllers (BTVCC) or direct connection to compatible smartphones and portable audio devices. Pass-through outputs simplify future system expansion, while multichannel switching mode allows all four output channels to operate from only two input channels, eliminating the need for Y-adapters.
Fully variable high-pass and low-pass crossovers, along with bridgeable channels, provide flexible tuning and configuration options for a wide range of speaker system designs.
Power Output
- 80W x 4 @ 4Ω
- 130W x 4 @ 2Ω
- 280W x 2 bridged @ 4Ω
Features
- Compact Class-D 4-channel amplifier
- Fully sealed die-cast aluminum chassis
- Marine and powersports rated construction
- 3.5mm signal input for Bluetooth controllers or direct smartphone connection
- Fully variable high-pass and low-pass crossovers
- Bridgeable channel configuration
- Pass-through outputs for amplifier expansion
- Multichannel switching mode (4-channel output from 2-channel input)
- High-efficiency design for reduced heat and improved reliability
Applications
- Marine audio systems
- UTV / ATV / SxS vehicles
- Motorcycle audio systems
- Golf carts
- Jeep and off-road vehicles
- Compact custom audio installations
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov
What This Warranty Covers
This is a “limited” warranty. This warranty covers any defects in materials and workmanship. This warranty applies only to the original purchaser and is not transferable. This warranty is valid only if the original purchase was made from an authorized Wet Sounds dealer.
How Long Coverage Lasts
This warranty lasts for 2 years from the date of purchase. It is recommended to document your product serial number and retain your receipt. These documents are required to verify your warranty coverage and expiration.
What Is Not Covered
This warranty does not cover fading or discoloration caused by exposure to sunlight or chemicals such as ammonia, household bleach, or any cleaning materials that contain abrasive substances. Wet Sounds, Inc. does not cover expenses for removal or reinstallation. Additionally, shipping to Wet Sounds, Inc. must be paid by the purchaser.
This warranty is void and inapplicable if Wet Sounds determines that the product has been abused or misused, including but not limited to damage caused by accident, mishandling, improper installation, removal of the inline fuse on the power connection, negligence, normal wear and tear, excessive water or heat damage, freight or shipping damage, or products that have been disassembled by anyone other than Wet Sounds technical staff.
Wet Sounds will not be responsible for any incidental or consequential damages, except to the extent provided or prohibited by applicable law. This warranty gives you specific rights, and you may also have other rights that vary from state to state.
What Wet Sounds, Inc. Will Do
Wet Sounds, Inc. will repair any part of your product that proves to be defective in materials or workmanship. If repair is not possible, Wet Sounds will replace the product. If deemed necessary, Wet Sounds, Inc. will replace the entire product with a refurbished unit, or with a model of similar value if the original model is no longer available.
Labor costs and materials required to complete this service will be provided at no charge to the purchaser. Additionally, return shipping from Wet Sounds, Inc. to the purchaser will be paid by Wet Sounds.
How To Get Service
Contact Wet Sounds, Inc. by phone at (877-938-7757) or by email at warranty@wetsounds.com. A service representative will confirm whether the issue is caused by a defective product and whether it is covered under warranty.
The service representative will issue a Return Merchandise Authorization (RMA) and provide additional details to obtain service for your product.
Do not return your product without a valid RMA
Internet Warning
Wet Sounds, Inc. products sold on non-authorized websites or internet auction sites are void of all manufacturer warranties. Please contact Wet Sounds at (877-938-7757) or visit www.wetsounds.com for a list of authorized online sellers or to locate an authorized installing retailer near you.
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