Were is the subwoofer connection?

Coax/opti1 is supposed to be a sub out also. I've heard earlier models did not function this way, but recently purchased units through Amazon should work. You'll need a 3.5 aux to rca cable for it to function I believe. I hooked up a powered sub to mine using the high level speaker inputs on the sub.

What is the rated power output per channel at 8ohms, and the THD%?

The rated power output is 45w+45w @8ohm, THD + N = 0.04%

When using the sub-out with a powered sub can the sub volume or levels be controlled via this unit?

Yes, and no. The SMSL's sub output level is variable, and raises/lowers in sync with the amps volume position, but you still have to set the master volume (for the sub) on the powered sub itself. I've got mine parked at about the 11 o'clock position, but results will vary depending on your setup. You will also need to find the crossover sweet spot on the subs low pass filter control.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

S.M.S.L AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 Small 80Wx2 Class D Amplifier with Subwoofer Output

Product ID: 56513326

Details

Item dimensions L x W x H
6.77 x 2.01 x
Manufacturer
SMSL
Maximum Supply Voltage
24 volts
Mounting Type
Coaxial Plug
Voltage
220

📶Bluetooth 4.2 with apt-X & NFC

🔊80W x 2 powerful output

🎚️Digital bass & treble EQ

2507 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered 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 Denmark.

Secure transaction

Description

🎧 Elevate your sound game — power, precision, and wireless freedom in one sleek amp!

COMPACT YET MIGHTY DESIGN - Sleek, space-saving chassis packs high-resolution 24bit/96kHz decoding and robust power in a stylish footprint.
DUAL INDEPENDENT CIRCUITS - Separate headphone and speaker amps plus dedicated subwoofer output for immersive 2.1 stereo experience.
CUSTOMIZABLE SOUND PROFILE - Integrated digital equalizer with patented SDB tech dynamically enhances bass and treble for rich, balanced audio.
VERSATILE 6 INPUT CONNECTIVITY - Seamlessly switch between USB, coaxial, optical, analog, and Bluetooth sources for ultimate audio flexibility.
AUDIOPHILE GRADE DIGITAL AMPLIFICATION - Powered by Texas Instruments TAS5508C & TAS5342 chips delivering crystal-clear 80W per channel Class D sound.

The S.M.S.L AD18 is a compact, full digital Class D stereo amplifier delivering 80W per channel with 6 versatile inputs including USB, coaxial, optical, analog, and Bluetooth 4.2 with apt-X. Featuring dual independent circuits for speakers and headphones plus a subwoofer output, it offers audiophile-grade sound with customizable bass and treble EQ. Powered by advanced Texas Instruments chips, it supports high-resolution audio up to 24bit/96kHz, making it a reliable, feature-rich choice for professionals seeking premium sound quality and connectivity in a stylish, space-efficient design.

Specifications

ASIN	B071JN7GXN
Best Sellers Rank	#161,354 in Electronics ( See Top 100 in Electronics ) #965 in Audio Component Amplifiers
Brand Name	S.M.S.L
Customer Reviews	4.3 4.3 out of 5 stars (991)
Global Trade Identification Number	00790996171746, 06970141852605
Included Components	amplifier
Item Dimensions	6.77 x 2.01 x 3.35 inches
Item Weight	1.3 pounds
Manufacturer	SMSL
Maximum Output Power	80 watts
Maximum Supply Voltage	24 volts
Model	AD18
Mounting Type	Coaxial,Plug Mount
Number of Channels	2
Number of Items	1
Package Type Name	box
Part Number	AD18 - Bluetooth
Specification Met	CE, FCC
UPC	651312006145 790996171746 619191169320 612032784676
Unit Count	1 Count
Voltage	220 volts_of_alternating_current
Warranty Description	1 year

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

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks 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.

2507 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered 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 Denmark.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews