is a 12-inch active studio subwoofer from the KRK S-series, built around a 12-inch Kevlar aramid fibre composite woofer and a highly efficient Class D amplifier rated at 220W. With a frequency response of 26 Hz – 97 Hz and a maximum peak output of 120 dB, it adds tight, defined low end that smaller nearfields cannot reach on their own.
KRK S12.4 Powered Studio Subwoofer is designed to disappear into the monitoring chain: the four-position crossover and dedicated LFE input let it hand over smoothly from the main monitors, so bass feels like part of the mix rather than an extra box in the room.
Why Choose KRK S12.4 Powered Studio Subwoofer?
KRK S12.4 Powered Studio Subwoofer earns its place in a studio because low-frequency decisions are the ones most likely to go wrong on small monitors. Without a subwoofer, bass problems hide until the mix reaches a car or club; with this subwoofer in place, kick, bass and low synth parts can be judged accurately at moderate levels. The front-loaded vented design keeps bass punchy, and the Class D amplifier adds control and transient speed without excess heat. A dedicated subwoofer also relieves the main monitors of the deepest bass, letting them play cleaner and louder in the midrange where vocals and instruments live.
Key Features
This subwoofer is a professional studio unit with flexible integration features.
12-inch Kevlar aramid fibre composite woofer: A rigid, low-distortion woofer delivers tight, accurate bass with excellent transient response.
220W Class D amplifier: An efficient Class D design increases control, punch and transient response.
Four-position crossover: A switchable crossover makes it easy to match the subwoofer to the main monitors.
Dedicated LFE input: A combo XLR / TRS LFE input suits surround and monitoring setups.
Front-loaded vented design: A front vent keeps bass defined and placement flexible.
Best Suited For
KRK S12.4 Powered Studio Subwoofer suits project and professional studios using KRK Rokit monitors, as well as any nearfield setup that needs trustworthy bass extension. It works for mixing, mastering, post-production and beat production where low-end accuracy matters.
Setup and Connection Guide
KRK S12.4 Powered Studio Subwoofer connects from the monitor controller or interface to the subwoofer inputs, then onwards to the main monitors, or via the dedicated LFE input in a surround setup. Place it near the front wall between or beside the monitors, set the crossover to match the main monitors, adjust level until bass sounds even rather than loud, and check mixes at low volume as well as at working level. If bass sounds uneven across the room, try a different position along the front wall before changing the level.
Frequently Asked Questions
Do I need a subwoofer with nearfield monitors?
For accurate low-end decisions, yes: most nearfields roll off before the deepest bass, and a subwoofer reveals what they hide.
How do I match it to my monitors?
Use the four-position crossover switch to hand over at the frequency that suits the main monitors, then balance level by ear.
Can it be used in a surround setup?
Yes. A dedicated LFE input with combo XLR / TRS connection suits surround monitoring chains.
Technical Specifications
Configuration
Front-loaded, vented active subwoofer
Woofer
12-inch Kevlar aramid fibre composite
Amplifier
Class D, 220W
Frequency response
26 Hz – 97 Hz (+/- 3 dB)
Maximum peak SPL
120 dB
Crossover
Four-position switch
Inputs
Combo XLR / TRS, dedicated LFE
Explore Related Products
KRK S12.4 Powered Studio Subwoofer complements the studio subwoofers on our store, including this powered subwoofer here: JBL IRX115S 15-Inch Powered Subwoofer.
Additional Information
Specifications
Brand
KRK
Model / SKU
KRK-S12-4
Category
Subwoofers
Condition
Brand new, sealed box
Warranty
Official manufacturer warranty (India)
GST invoice
Yes, input credit available
Warranty Information
Buy with peace of mind. The KRK S12.4 Powered Studio Subwoofer comes with the official manufacturer’s warranty for India, valid from the date on your GST invoice. Pro Audio Video is a specialist audio video store, and every product we sell is brand new, sealed and sourced through authorised channels, so your warranty is honoured at brand service centres across India.
Official Indian warranty, as specified by the manufacturer
GST invoice with every order, needed for warranty claims
We help you raise and follow up warranty claims with the brand
Delivery and Shipping
Same-day dispatch on most in-stock orders
Delivery anywhere in India; delivery time depends on your location
Shipped securely in the original manufacturer box
Cash on delivery available on orders up to ₹45,000
Tracking details by SMS and email as soon as your order ships
Returns and Refunds
Not right for you? Return unused products in their original packaging within 7 days of delivery. If a product arrives damaged or defective, tell us within 48 hours with photos and we will replace it or refund you in full.
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