Audio engineers, studio musicians, and audio enthusiasts looking for a high-quality active subwoofer to extend the low frequencies of their monitor setup will be thrilled with the KRK S8.4, a fourth-generation powered studio subwoofer that delivers tight defined bass with remarkable transient performance, control, and punch. Adding this subwoofer to your 2.1 setup or 5.1 surround environment will optimize your mixing and listening experience.

The S8.4 utilizes a 109W Class-D amplifier to power the 8" glass-aramid composite woofer, which offers a 35 to 133 Hz frequency response with a peak SPL of 112.8 dB. XLR, 1/4", and RCA inputs and outputs are available, allowing you total flexibility when connecting additional subs and monitors. A four-position selectable crossover lets you adjust the subwoofer settings to easily match your existing monitors. The S8.4 can be paired with any full-range studio monitor, but really shines when paired with KRK's Rokit and VXT monitors. The curved design with front-firing bass port provide placement flexibility. Other notable features include polarity and input sensitivity controls, as well as a ground lift to prevent ground loops.

8" Aramid Composite Woofer    Frequency Response: 35 to 133 Hz    Max SPL of 112 dB    Curved Design with Front Bass Port    Class-D Amplifier    Footswitch On/Off Control + Ground Lift    Optimized 4-Position Crossover Control    XLR, 1/4", RCA Inputs and Outputs    Polarity and Input Sensitivity Control

• Mix with confidence. The bypass footswitch control allows you to quickly mute the sub and send full-range audio to your recording monitors.

• KRK Subwoofers feature reinforced MDF enclosures for maximum strength and durability. Never let a spilled beer or wild ninja roundhouse kick stop your mixing session again.

• KRK engineered the front port to provide low-frequency extension while reducing boundary coupling. The unique shape is optimized to avoid port turbulence.

• Dedicated crossover and optional high-pass filter bypass means that the subwoofers are the perfect complement to powered monitors. From mixing and mastering to sound design, broadcast, and production work—KRK has you covered.

• 8" glass aramid composite woofer
• Bass extension to 30 Hz with a max SPL of 112 dB
• Footswitch control enables/disables sub and crossover filter (footswitch not included)
• Curved design with front-firing bass port for placement flexibility
• Powerful, lightweight Class-D amplification
• Optimized four-position crossover control
• Universal connectivity: XLR, 1/4" TRS, and RCA inputs and outputs
• Polarity and input sensitivity controls
• Ground-lift switch prevents ground loops

Related Questions and Answers

Q: 1. dimension of speakers?

A: Here are the dimensions and weight of the KRK Rokit 7 G4 studio monitors - Height: 13.3" / 339 mm Width: 8.8" / 225 mm Depth: 11.2" / 284 mm Weight: 16.8 lb / 7.6 kg

Q: 2. Do you need to use the included KRK app to run these monitors?

A: The KRK ROKIT 7 G4 7" 2-Way Active Studio Monitor does not requite the KRK Audio Tools App to function, but the app can be used to enhance your user experience to to assist with monitor placement, level matching, subwoofer level and crossover setting assistance, polarity, and EQ.

Q: 3. Does the high cut knob act as a crossover? Will the frequencies above the set high cut pass through the HS8S's outputs to go to studio monitors?

A: On the HS8 subwoofer, the high cut control sets the highest frequency output from the sub. The Low Cut control will act as the crossover to the monitor speakers and attenuate the low frequencies before outputting to the connected monitors. This can be bypassed or engaged with the on off switch.

Q: 4. Are the HS7 monitors suitable for voice over and narrative work for video?

A: Yes, absolutely. The HS7 monitors are designed to deliver accurate response within the frequency range of 43 Hz to 30 kHz which covers a wider span than the human voice for speaking or singing.

Q: 5. where are you located?

A: B&H is located in New York City. 420 9th Avenue NY, NY 10001

Q: 6. Are there two brackets or just one for $52?

A: Just one bracket is included for this price per each.

Q: 7. How many speakers come in box

A: That price is for one monitor.

Q: 8. Is that price for pair? Or single?

A: That price is for a single speaker.

Q: 9. Does this come as a pair of speakers (2 speakers instead of one) ?

A: KRK offers all of the Rokit series speakers for purchase individually. However, B&H does offer a kit that includes a pair of Rokit 7 speakers with two XLR cables, two isolation pads, and a monitor controller which is listed on the website as B&H # KRRP7G4CK.

Q: 10. The location I'd like to put this sub would require it to go on its side, with the port on the bottom. I would plan on having it on top of a foam subwoofer pad to decouple it. Would this be stable in that orientation?

A: Yes, it is possible to position the KRK S8.4 Powered Studio Subwoofer with the port on the bottom and it will be stable in this orientation.