Skip to content
Sign In

Master & dynamic

QS400.4 2 Ohm 4 Channel Full Range Amplifier

Low stock

Regular price $79.91
Sale price $79.91 Regular price
Sold out
Shipping calculated at checkout.
Description

QS Series amplifiers are all about efficient design capable of full-range frequency response at a great price!

The QS400.4 features a regulated power supply that is able to constantly deliver power and provides an unsurpassed efficiency rate of 80–90% in a small aluminum heatsink.

  • 4 x 100 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology
  • 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel.
  • Engineered to be the most efficient full range amplifier so that you can get the most out of your vehicle’s electrical system!
  • A small footprint and compact chassis make this amplifier easy to install anywhere in the vehicle: 4″ Wide x 5.40″ Length x 2″ Height
  • 2 Channel Bridged – double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 200 Watts RMS.

The QS series is our most recent line of full bridge high wattage amplifiers. You can count on these amplifiers to deliver incredible value for your money. QS Series 4 Channel amplifiers, also are available on QS800.4 and QS1200.4

Its wide frequency response allows you to use it in many different applications, such as subwoofers, midbass, midrange, full range speakers, phenolic drivers, titanium drivers, and super tweeters, among others. This versatile amplifier is the perfect solution for daily car audio systems.

Shipping Information

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

Shipping from the warehouse after you place your order is same day in most cases, but if it's the holidays or a seasonal rush, in most cases it takes 1 to 3 days. If anything comes up, we will notify you via email or call you. Packages usually arrive in 3 to 10 business days, depending on the service. If anything happens after your product is shipped, please contact the service provider (UPS or USPS first), as we can’t act on your behalf once the item is shipped.

Shipping is FREE over $100.00 in the Continental US. Hawaii, Alaska, and US territories will have shipping calculated at checkout. Orders below $100.00 have a shipping cost starting at $25.00, with the final price calculated per order depending on the item or items purchased. International shipping is calculated by Zonos, a third-party international shipping partner. If there are any issues or exclusions with your purchase, we will reach out to notify you.

When you place an order, we will estimate shipping and delivery dates based on item availability and the shipping option you select. Depending on the shipping provider, estimated shipping dates may appear on the shipping quotes page.

IMPORTANT DELIVERY NOTICE: If you feel you live in an unsafe area where a package could be stolen, please ship your order to a safer address. Once the package has been shipped and scanned as delivered, it becomes the responsibility of your home or homeowners insurance. Please be diligent to ensure safe delivery.

We are happy to offer signature-required delivery if requested. If you would like your package to require a signature, please include this request in your order notes. Please note that shipping rates for many items are weight-based. Item weights can be found on the product detail page and are rounded up to the next full pound to comply with shipping carrier policies.

Route Package Protection: We’ve partnered with Route, a package protection and tracking solution, to provide an enhanced delivery experience. Route offers low-cost shipping protection in case your package is lost, stolen, or damaged during transit.

Route also offers a mobile app that allows you to visually track all your online orders in one place—no need to search emails for tracking numbers. Dynamic maps and real-time shipping updates keep you informed throughout the delivery process. The Route app is available on both Android and Apple app stores.

If you experience an issue with your order, please file a claim directly with Route’s support team.

Reviews

Frequently bought together

Recently viewed products

Back to top
Home Shop
Wishlist
Log in