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KRK S8.4 8 inch Powered Studio Subwoofer , $369.00 - Add to Cart Skip to Product Information

KRK S8.4 8 inch Powered Studio Subwoofer

8" Powered Subwoofer with 8" Glass Aramid Composite Woofer, 70-100Hz Crossover Filter, Polarity Reverse, Ground Lift Switch, and Footswitch Jack
Item ID: KRKS8.4
KRK S8.4 8 inch Powered Studio Subwoofer
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KRK S8.4 8 inch Powered Studio Subwoofer
In Stock!

Big, Booming Bass for Any Studio Setup

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KRK's S8.4 8-inch Powered Studio Subwoofer makes it easier than ever to incorporate a subwoofer into your studio setup. Its extensive I/O allows for XLR, 1/4-inch TRS, and RCA connections, with an optional footswitch jack for hands-free operation of bypass and crossover filter features. When it's time to fire up the S8.4, you'll experience an incredibly tight and punchy low end delivered through a single 8-inch glass aramid composite woofer and a front-firing bass port. Its Class D amplifier pumps out the clean and clear sound Sweetwater's discerning audiophiles constantly crave, with everything tucked neatly inside a low-profile cabinet that fits comfortably into any layout. Add the KRK S8.4 8-inch Powered Studio Subwoofer to your arsenal for big, booming bass you can rely on.

Bells and whistles for any situation

Not only does the S8.4 deliver rich, dynamic low end in any studio setup, but KRK also equipped it with a handy set of panel controls to fine-tune its sound to a variety of situations. An exceptionally powerful crossover filter tailors the S8.4 to whatever monitors you're currently using, with options for 70, 80, 90, and 100Hz operation. You also get toggles for input sensitivity, polarity reverse, stand-by, and a ground lift for removing unwanted noise, facilitating even deeper tone tweaking at the flick of a switch. Not to mention, the S8.4's footswitch jack is great for hands-free operation, allowing you to enable or disable the sub as well as the crossover filter (footswitch sold separately). All in all, the S8.4's extensive feature set makes it the perfect companion for whatever setup you're running.

KRK S8.4 8-inch Powered Studio Subwoofer Features:

  • High-powered studio subwoofer that complements any set of studio monitors
  • 8-inch glass aramid composite woofer handles high SPLs without distortion
  • Extensive I/O with XLR, TRS, and RCA options
  • Front-firing bass port and Class D amplifier
  • Low-profile cabinet fits comfortably into setups of all kinds
  • 70–100Hz selectable crossover filter customizes sub response
  • Sensitivity switch for use with pro or consumer audio equipment
  • Ground lift and polarity switch overcome setup issues
  • Footswitchable bypass (footswitch sold separately)
  • Frequency response: 34.5Hz–133Hz

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.