AC15-B vs LSR310S — Compare

JBL AC15 Ultra Compact 2-Way Loudspeaker with 1 x 5.25 LF SINGLE UNIT B-Stock vs JBL LSR310S 10 Powered Studio Subwoofer

The AC15 is a compact passive 2-way loudspeaker designed for live sound and portable PA, while the LSR310S is a powered studio subwoofer for monitoring and mixing. Choose the AC15 if you need a versatile full-range speaker for venues and performance; choose the LSR310S if you're anchoring a studio monitoring system with dedicated bass extension.

No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.

JBL AC15 Ultra Compact 2-Way Loudspeaker with 1 x 5.25 LF SINGLE UNIT B-Stock

$472.00
View JBL AC15 Ultra Compact 2-Way Loudspeaker with 1 x 5.25 LF SINGLE UNIT B-Stock

JBL LSR310S 10 Powered Studio Subwoofer

$487.38
View JBL LSR310S 10 Powered Studio Subwoofer

Specs side by side

JBL AC15 Ultra Compact 2-Way Loudspeaker with 1 x 5.25 LF SINGLE UNIT B-StockJBL LSR310S 10 Powered Studio Subwoofer
Price$472.00$487.38
BrandJBLJBL
ConditionRefurbishedNew

Why choose JBL AC15 Ultra Compact 2-Way Loudspeaker with 1 x 5.25 LF SINGLE UNIT B-Stock

  • Compact, lightweight 2-way system with professional passive design
  • Versatile for live performance, portable PA, and studio use
  • Dual Speakon connectors and multiple mounting points for flexible integration
  • Crisp tweeter definition and punchy midrange across genres

Why choose JBL LSR310S 10 Powered Studio Subwoofer

  • Powered subwoofer with 200 W amplifier—no external amp needed
  • Deep low-frequency extension to 27 Hz for precise bass monitoring
  • Three crossover modes including XLF venue tuning and external routing
  • Professional balanced XLR/TRS connectivity for studio and surround setups
Bottom line: Buy the AC15 if you perform live, run portable PA, or need a full-range speaker for mixed applications. Buy the LSR310S if you're building or upgrading a studio monitoring chain and need dedicated, flat-response bass for mixing and mastering.

Frequently asked questions

Can I use these two products together?

Yes. The AC15 works as a main monitor or main PA speaker, while the LSR310S would serve as a dedicated subwoofer in a studio or live setup. However, the AC15 is passive and requires an external amplifier, whereas the LSR310S is self-powered. They're designed for different primary uses but can complement each other in a hybrid monitoring rig.

Which is better for home recording and mixing?

The LSR310S is purpose-built for studio monitoring with flat reference character, precise crossover control, and professional connectivity. The AC15 is more suited to live and portable applications, though it can work in small studio rooms if paired with appropriate monitors for mid and high frequencies.

What's the frequency response difference?

The AC15 covers 90 Hz–18 kHz (±3 dB), with reach down to 80 Hz. The LSR310S specializes in bass extension from 27 Hz upward, filling the low end below typical monitor speakers. The LSR310S is not a full-range speaker and requires a monitor speaker to handle midrange and treble.

Which requires more setup and infrastructure?

The AC15 requires an external power amplifier and speaker cables. The LSR310S is self-contained with built-in amplification and professional balanced audio inputs, needing only a signal connection and power outlet.

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