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Willie Greer - July 22, 2021
PA announcements need to be boosted with a subwoofer to reach every corner of the venue. The best PA subwoofer can also help enhance parties and double as a DJ sub, but not if you choose a subpar product. To save you from weak bass and barely improved sound, our experts have reviewed a few options.
- Very compact
- Portable design
- 2000-watt peak
- Premium birch cabinet
- Class D amps
- XLR outputs
- 6 DSP output modes
- Extended LF switch
- Balanced XLR inputs
- Selectable phase control
- Lightweight and affordable
- Easy to transport
Reviews of the Best PA Subwoofers
QSC KS112
It’s a bit expensive, but our sonic engineers love the QSC KS112 despite the high price tag. It’s an ultra-compact design, excellent for DJs and PA events that need a transportable sub. The small size does not compromise its power, and the QSC KS112 can still pump out 2000 watts at peak power.
The cabinet is made from premium birch, which is not only long-lasting but also dampens unnecessary vibrations and distortions.
For extra bonus features, the QSC KS112 has Intrinsic Correction Tuning and loudspeaker management to help you pair the sound. There is also KS-LOC security that allows the sub to block out unwanted tampering.
(Want an extra loud bass? Well, you can check our list of great 18-inch subs here, as well)
What We Like
- Very compact and portable
- Intrinsic Correction Tuning
- Loudspeaker management
- Optional KS-LOC
- Premium birch construction
- Very powerful sub
What We Don’t Like
- High price
- A DJ may want a larger model
PRORECK PR18
The PRORECK PR18 looks good and won’t break the bank. Our team of audio experts enjoyed the low-frequency driver that offers more bass reinforcement. The subwoofer also caps out at 2000 watts at peak power, which is enough to fill any venue.
You won’t suffer from signal loss thanks to the balanced XLR combo input and stereo RCA. There is also selectable phase control offered to users that can allow the connection of many subwoofers for even more explosive bass.
The small subwoofer is also lightweight at only 68 pounds, and has two side handles that make transport easier.
What We Like
- Selectable phase control
- Class D amplifiers built in
- Plywood cabinets
- Balanced XLR combo input
- Low-frequency driver
- 2000-watt peak power
- Affordable price
What We Don’t Like
- Not the most precise bass
- Quite a large subwoofer
Rockville RBG18FA
Our team of testers was blown away by the Rockville RBG18FA and its 3000-watt peak power. What makes this one of the best PA subwoofers is the LED indicator light and the power-on signal.
There are also balanced XLRs for easy setup and the subwoofer has a low pass crossover with phase control and level adjustment. For transport, the Rockville RBC18FA has carrying handles and built-in caster wheels so moving the sub won’t break your back.
The cabinet is created out of solid MDF, which is recommended for resonance reduction.
(Get to know this brand more by check out our all-in review of Rockville Audio here)
What We Like
- LED indicators
- Balanced XLRs
- Carrying handles
- Caster wheels
- MDF cabinet
What We Don’t Like
- Not a folded horn model
- Large and heavy
Alto Professional TS315S
This small but powerful PA subwoofer delivers superior sound to your PA system and punctuates parties, weddings and other gatherings with deep bass.
The two high-efficiency built-in class D amps are designed to regulate the sound and bring a balanced soundstage with the durable sub. It’s easy to integrate with other devices as it comes with XLR outputs and 6 DSP output modes.
The Alto Professional TS315S offers elevated EQ control wherever you go. Lift it easily with the recessed handles on the side of the cabinet and take it from venue to venue.
What We Like
- Extended bass response
- Long-excursion woofer
- Durable construction
- More EQ control
- Class D amps built-in
- Recessed handles
What We Don’t Like
- A bit heavy
- The rubber finish can scuff
PA Subwoofer Buyer’s Guide
Design and Size
Our team members highly suggest double-checking the measurements and size. The subwoofer should be well-built and lightweight.
Sound Quality
Our team suggests going for an in-built high-excursion woofer and a sub that has EQ controls for the best sound quality.
(For powerful sound, we also have top-tier powered subs for live sound experience)
Power Rating
Although the peak power is very attractive, our team stresses the importance of heeding the RMS, which is the highest rating you can play your sub at without risking damage.
(Have limited budget to buy a subwoofer? Well, here’s how you can start making a DIY subwoofer to cut down cost)
FAQ
Do I need a subwoofer for my PA system?
Yes, you need a subwoofer for your PA system. This is because it takes a lot of power to amplify the sound to fill larger spaces. Not only that but low-frequency tones often get lost in spacious venues, which is why a subwoofer can help prevent that.
Our Top Pick For a PA Subwoofer:
Alto Professional TS315S
Our team members have landed on the Alto Professional TS315 as the best PA subwoofer. Not only is it built well, but it packs a punch with 2000 watts at peak and 1000 watts [1] continuous RMS. It’s a compact and relatively lightweight subwoofer that can accompany you to various locations thanks to the recessed handles and pole socket.
For more subwoofer products, we also have the list below:
