QSC K12 12" Powered PA Speaker - 1000W (Discontinued)


94 out of 100. Incorporating 550+ ratings and reviews.

Street Price: 


QSC K12 Meta-Review

I have processed thousands of review sources for Gearank and rarely have I seen a product that is so consistently raved about by its owners as I have just now while researching the QSC K12 12" Powered PA Speaker.

It's popular with bands, DJs and audio engineers for use both as an FOH speaker and a foldback wedge or stage monitor - many people even report using it satisfactorily as a studio monitor. It's important to note that these are more expensive than many other options available (you can get some for close to half the price), which makes the high ratings it has received even more impressive than they would ordinarily be.

It provides a total of 1000 watts via the Class D amplifiers and can peak at 2000 watts. It has built in DSP (Digital Signal Processing) which performs a range of functions to keep the sound crisp and clear across a wide range of frequencies and volumes - one proprietary function is DEEP (Digital Extension and Excursion Processing) which allows it to produce low frequencies at volumes not usually associated with a speaker enclosure as small as this - some people even report they get a similar response to using a sub woofer.

Main QSC K12 Features

Low Frequency Driver 12 inches
Low Frequency Amplifier 500 watts Class D
High Frequency Driver 1.75 inches
High Frequency Amplifier 500 watts Class D
Frequency Response 48Hz to 20kHz
Crossover Frequency 2kHz
Input Connections 1 x XLR/TRS Combo (Mic/Line), 1 x XLR/TRS Combo (Line), 2 x RCA
Output Connections 2 x XLR (Direct), 1 x XLR (Line)
Maximum Peak SPL 131 dB
Coverage Pattern 75° conical
Operating Voltage 85 to 275 VAC at 50-60Hz
Dimensions 14" W x 23-7/10" H x 14" D
Weight 41 lb./ 18.6 Kg


I'll get into the negatives first because there weren't many.

I looked hard to find negative reviews of the QSC K12, there are some but there are few who consistently report the same issue - the only one that seemed to come up multiple times from people who knew what they were doing, was that the XLR cables sometimes fall out when using it in the foldback wedge position. There were a few DJs who reported that they were hitting the power limit, but this seemed to be because they weren't using the correct inputs for the power level their mixer was putting out.


Just about everything about them from the loud volume to the crisp and clear sound it outputs to the range of connectivity options provided. Reviewers who had been using these for over a year also praised their solid construction and durability afforded by the ABS Thermoplastic enclosure, steel grille and aluminum handles - something which is vital for those who a gigging regularly - the manufacturer backs this up with a 3 year warranty.

A thoughtful feature that a few reviewers quite liked was that the power cable clips into place and can't be removed without depressing a release button - you don't have to worry about the power cable falling out when you're driving the speakers hard.

If you'd like to know more then check out the latest QSC K12 price and customer reviews at Amazon.com.

The following video provides an excellent overview of the QSC K12:


It's available from several online music stores and can be purchased now at Amazon.com.

Feel free to leave your comments or questions about the QSC K12 below.


we have 2 x qsc 12 speakers

We have 2 x QSC 12 speakers for foh,,,,can these speakers be doubled up to run 2 x QSC speakers per side or even 3 per side without causing problems with sound cancellation?