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.

| Channels | 4 Channel |
| Rated RMS Power at 14.0 V at 2 Ohm | 4x 100 Watts |
| Rated RMS Power at 14.0 V at 4 Ohm | 4x 70 Watts |
| Bridged Rated RMS Power at 14.0 V at 4 Ohm | 2x 200 Watts |

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.

Its small heatsink offers high fidelity sound, with precise midbass punch and crystal clear highs. This amplifier is perfect for anyone who wants to experience maximum sound quality and power at an affordable price.
This proprietary heat dissipation design will ensure its temperature to run cool on the most demanding playlists.
Before Installing:
You must follow the instructions for the product?s installation to guarantee optimal performance. If you have any questions, get in touch with us. Before using the amplifier, always follow these guidelines:
? Make sure the amplifier is switched off before adding or removing any connections. This prevents possible damage to equipment.
? Keep all cables as far away as possible from the ignition cables, electronic injection modules and starter switch since they may cause noise interference;
? Always use 100% Copper wire and good quality connectors. This guarantees reliability and performance.
? To avoid damaging the cables, make sure that they do not touch sharp metal edges. Important: For this amp use a 25A fuse 12 inches away from the battery as a safety precaution
PRV Audio products are guaranteed for a period of ONE (1) YEAR from the date of original purchase against any manufacturer?s defects in material and workmanship under normal use.
| Impedance | 2 Ohm |
| Channels | 4 Channel |
| Rated RMS Power at 14.0 V at 2 Ohm | 4x 100 Watts RMS |
| Rated RMS Power at 14.0 V at 4 Ohm | 4x 70 Watts RMS |
| Bridged Rated RMS Power at 14.0 V at 4 Ohm | 2x 200 Watts RMS |
| Average Efficiency | 80% |
| Operating Voltage | 9 to 15 Volts |
| Musical Current Draw | 45 A |
| Minimal Power Wire Input | (OFC) 8 Gauge wires |
| Built-in Crossover | Fixed HPF & LPF at 90 Hz |
| Minimal Speaker Wire Output | 14 Gauge |
| Frequency Response(-3dB) | 20 ? 25,000 Hz |
| Min. Input Sensitivity for Max. Output | 200 mV |
| Signal Input | 2 Pair RCA |
| Signal to Noise | >90 dB |
| Protection System | High Temperature / Short circuit on Output |
| Heat Sink Type | Heavy Duty Cast Aluminum |
| Dimensions ( Width x Depth x Height ) | 4.00? x 5.40? x 2.00? |
| Weight | 1.18 Lbs |
The power rated data are based on equipment from the PRV Audio Group laboratory. Frequency reference of 100Hz to 1kHz with THD+N to ?1 % in impedances referring to the indicated in each measurement. The electronic components and the manufacturing process can present manufacturing variations, thus leading to a variation in the measurements made. This amplifier is designed to perform on music applications (with speakers), any load test (resistant load) is not recommended.
About Us
VIP Pro Audio & DJ Equipment has been THE destination for DJ entertainment and lighting industry professionals for over 25 years, combining knowledge and experience with our highly specialized group of professionals to bring our loyal customer base the right, low-priced solution for every situation. From PA systems, turntables, and rack gear to cables, stands and subwoofers, VIP Pro Audio has all facets of the market covered!
State-of-the-art equipment and the creative expertise that comes with selling products specifically designed for our customers? sound and lighting needs, we at VIP Pro Audio are never satisfied with the norm. From DJs and producers to rental contractors and lighting designers, we strive to provide our clients with innovative design ideas and the highest quality components at a low, competitive price.
We Accept: PayPal, Visa, Master Card, Discover, e-Check, PayPal Credit
Sales Tax: 8.875% if shipped to NY
Sales tax will not be charged unless your order is being shipped or picked up in NY.
Ship To locations: The United States, Canada, Worldwide
Most items will be shipped within 24 hours of receiving payment
Nearly every order received by 3PM Eastern ships the SAME DAY!FREE shipping to lower 48 states.
- Our central location reaches most states in 1-4 business days- 99.95% warehouse accuracy
- Expedited shipping available
We are proud to provide some of the fastest turnaround times on eBay. We use FedEx or UPS for most items, and USPS for smaller items. Residents of Hawaii, Alaska, and Puerto Rico should contact us for a shipping quote.
Exchanges
You must e-mail us (vipproaudio@gmail.com) and receive return instructions if you receive a defective item
The item must
be in the original packaging with all the accessories included. We
reserve the right to have the unit exchanged or repaired (up to
manufacture). Our warranty will not cover blown voice coils, or
speakers with punctured surrounds. This is considered physical damage
and is not covered by a manufacturer warranty, or by our warranty. No
physical damage goods are warranted. DOA goods (physical) need to be
claimed by shipping carrier.
Return for Refund
You must e-mail us vipproaudio@gmail.com
and receive an RMA number, before returning. A 15% re-stocking fee will
be applied in order to return an item for a refund. Shipping costs
are never refundable, Item must not be used, and must be returned in
original packaging with all accessories, within 7 days of the time you
receive the item. (Items sold with "free shipping promotions" will have
the shipping cost deducted prior to the 15% restocking fee)
For all returns, customer is responsible to ship item back (unless it is VIP fault or error)
VIP Is The Place To Be...
- The Largest Selection Of Pro Audio, DJ & Lighting Equipment Unde One Roof.
- A Tradition Of Excellence Since 1988
- Celebrating 30 Years Of Commitment To Quality & Service.
- Proud To Be Most Awarded & Top Rated Dealer