Hi, great product but it has a whistle sound thats annoying me, any way to fix?

Through the speakers I'm assuming. Generally I'd try it with different speakers, but it could be a bad unit. It sounds like interference.

How do you apply thermal paste to the mosfets? Does it require desoldering or is it just a screwdriver task?

Just a couple of screw drivers. Unscrew the silver phillips head screws on the front and back of the amp to permit you to remove the circuit board. Also unscrew the bigger black phillips screw on the side. That holds the clamp that braces the mosfets against the heatsink. When you pull out the board, you'll have access to the chip to apply the thermal paste.

How would I wire this for power in a truck since it only comes with the household plug?

The Product Description clearly states that it IS intended for automotive use! You DO NOT need an inverter; the unit runs on auto voltage; it has a power adapter which takes the 120 AC house current down to 9 to 14.4 DC. Just throw away the power adapter which comes with it and wire it directly to your vehicle (12-14 DC).

Could you power this amp by just the usb port? if i plug it into my computers usb port will it power it?

Actually, the amp's USB port is a 5v powered outlet for another device. In my application, I use it to power the stereo's bluetooth module. The amp itself requires 12v from either the included AC adapter or a 12v battery. Hope this helps.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Lepai LP-168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output

Lepai LP-168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output

Product ID: 1065694

Details

Item dimensions L x W x H
4 x 7 x 1.8
Manufacturer
Lepai
Minimum Supply Voltage
9 Volts
Mounting Type
Surface Mount
Voltage
14.4 Volts

🔊2x40W stereo power

🔌Rear USB charging port

🎛️Bass, treble & subwoofer controls

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

R2271

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

🎧 Elevate your desktop soundscape — power, precision, and style in one sleek amp!

DESK READY DESIGN - Sleek, surface-mount form factor fits perfectly on any professional workspace.
BONUS USB CHARGING - Keep your devices powered with a convenient rear USB port while you work or play.
COMPACT POWERHOUSE - Delivers crisp 2x40W stereo + 68W subwoofer output for immersive sound.
SEAMLESS CONNECTIVITY - Supports stereo RCA and 3.5mm inputs for versatile device pairing.
TAILORED AUDIO CONTROL - Front-panel bass, treble, and subwoofer crossover knobs let you customize your vibe.

The Lepai LP-168HA is a compact 2.1 channel amplifier delivering up to 108W total output (2x40W stereo + 68W subwoofer). Designed for desktop and mobile use, it features adjustable bass, treble, and subwoofer crossover controls, multiple audio inputs (RCA and 3.5mm), and a rear USB port for device charging. Its versatile voltage range (9-14.4V) supports automotive and home setups, making it a budget-friendly yet powerful audio upgrade for professionals seeking customizable sound.

Specifications

ASIN	B0070Z87YO
Best Sellers Rank	#121,483 in Electronics ( See Top 100 in Electronics ) #299 in Car Multichannel Amplifiers
Brand	Lepai
Brand Name	Lepai
Customer Reviews	3.9 out of 5 stars 327 Reviews
Global Trade Identification Number	00844632091506
Item Dimensions	4 x 7 x 1.8 inches
Item dimensions L x W x H	4 x 7 x 1.8 inches
Manufacturer	Lepai
Material Type	Plastic
Minimum Supply Voltage	9 Volts
Model	LP-168HA
Mounting Type	Surface Mount
Number of Channels	3
Output Power	108 Watts
Part Number	LP-168HA
Specification Met	CE, FCC
UPC	624152684378 616204179284 818019161557 844632091506
Unit Count	1.0 Count
Voltage	14.4 Volts
Warranty Description	90 days

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.