Description
The JBL 310S MkIII is the dedicated 10-inch powered subwoofer designed to complete your 3 Series MkIII studio monitors setup. Ideal for stereo 2.1 systems, surround sound or immersive audio workflows, it delivers the low-frequency detail and power that full-range monitors alone cannot achieve.
Main Features
- Extends 3 Series systems with the 305P, 306P and 308P MkIII monitors
- Deep and accurate bass from 27 Hz to 370 Hz (+/-3 dB), with extension to 26 Hz (-10 dB)
- Powerful 300-watt Class D amplifier delivers up to 116 dB peak SPL
- Selectable crossover frequencies at 80, 100 and 120 Hz, plus external crossover bypass option
- Patented Slipstream port reduces bass port noise for clean, tight low end
- Improved phase alignment provides smoother integration with full-range speakers
With a downward-firing 10-inch driver featuring an advanced magnetic system, the 310S MkIII ensures tight, controlled bass and consistent coverage across your room. Its patented JBL Slipstream port reduces port noise and turbulence, keeping bass accurate and articulate even at high volumes.
Boasting a frequency response extending down to 26 Hz and a powerful 300-watt Class D amplifier, this subwoofer confidently reaches up to 116 dB peak SPL. Whether you are producing music, mixing video or working in post-production, the 310S MkIII offers reliable headroom and low-end precision.
Integration is seamless thanks to selectable crossover settings at 80, 100 and 120 Hz, plus an external crossover bypass for use with your existing bass management system. Improved phase alignment over previous models lets the subwoofer mesh smoothly with full-range monitors such as the 305P, 306P and 308P MkIIIs for a clean audio handoff.
Upgrade your monitoring setup with the JBL 310S MkIII and experience full-range clarity with every frequency you need to hear.
Specifications
- Configuration: Powered studio subwoofer, downward-firing driver
- LF driver: 250 mm / 10 inch low-frequency driver
- Frequency response (+/-3 dB): 26 Hz – 370 Hz
- LF extension (-10 dB): 26 Hz
- Maximum peak SPL: 116 dB
- Amplifier power: 300 W Class D
- ADC sample rate: 192 kHz
- Crossover: Selectable 80 / 100 / 120 Hz, or external bypass
- Inputs: Balanced Neutrik combo XLR / TRS
- Port: Patented JBL Slipstream
- Weight: 16.9 kg
Frequently Asked Questions
➤ Which monitors is the JBL 310S MkIII compatible with?
The 310S MkIII is designed to pair seamlessly with JBL 3 Series MkIII monitors including the 305P MkIII, 306P MkIII and 308P MkIII models.
➤ What frequency range does the 310S MkIII cover?
It provides a frequency response from 26 Hz to 370 Hz (+/-3 dB), with deep bass extension down to 26 Hz at -10 dB.
➤ What crossover options are available?
The subwoofer features selectable crossover points at 80 Hz, 100 Hz, and 120 Hz, plus an external bypass mode for use with a bass management system in surround or immersive audio setups.
➤ How powerful is the amplifier in the 310S MkIII?
The subwoofer includes a 300-watt Class D amplifier capable of delivering up to 116 dB peak SPL for ample headroom during demanding audio work.
➤ Does the 310S MkIII reduce port noise?
Yes, it uses JBL’s patented Slipstream port design to minimise turbulence and reduce port noise, ensuring clean, tight bass reproduction.
Delivery
This product is on order with our suppliers
This item is normally sent to Mainland UK addresses by DPD who generally provide a one-hour window of delivery on the morning of delivery by email or text message.
FREE delivery within mainland UK
UK Non-Mainland: from £12.99
Rep. of Ireland and Mainland Europe: from £35 (calculated at checkout). Please see our international delivery page or contact us for details.
Warranty Information
JBL Warranty Information: Product Type / Warranty Period
EON ONE Compact, EON700 Series, EON ONE MK2, PRX900 Series, and PRX ONE / 7 years (Battery / 3 years)
IRX Series / 3 years
Please note this information is provided for guidance only as manufacturer warranties may be updated from time to time. For full please visit the manufacturer's website here.
3 years warranty for VIP members
