ASB6118-WH vs JBL-P3365MX — Compare
JBL ASB6118-WH SINGLE 18" SUBWOOFER (white) vs JBL SRX915SF 15-inch Subwoofer
The ASB6118-WH is a passive 18-inch driver offering maximum continuous SPL (129 dB) and extended low-end reach (35 Hz), ideal for large-scale live and installed systems requiring raw headroom. The SRX915SF is a compact powered 15-inch subwoofer with built-in 2,500W amplification and extensive DSP tuning tools, better suited for touring and venues where setup flexibility and room optimization matter more than absolute size.
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JBL ASB6118-WH SINGLE 18" SUBWOOFER (white)
Specs side by side
| JBL ASB6118-WH SINGLE 18" SUBWOOFER (white) | JBL SRX915SF 15-inch Subwoofer | |
|---|---|---|
| Price | $3,100.00 | $3,199.00 |
| Brand | JBL | JBL |
| Speaker Type | Subwoofer | Subwoofer |
| Install Type | Portable | Portable |
| Condition | New | New |
Why choose JBL ASB6118-WH SINGLE 18" SUBWOOFER (white)
- ✓ Larger 18-inch driver delivers greater continuous SPL (129 dB) and lower frequency extension (35 Hz)
- ✓ Passive design integrates into existing powered speaker arrays without added amplifier footprint
- ✓ Rugged 11-ply birch cabinet rated for flown or ground-stacked deployment in mid-to-large venues
- ✓ Higher peak SPL capability (135 dB) for dynamic live sound demands
Why choose JBL SRX915SF 15-inch Subwoofer
- ✓ Integrated 2,500W Class D amplifier eliminates need for external amp and reduces signal chain complexity
- ✓ 24 user-adjustable filters, throw-distance correction, and array compensation for venue-specific tuning
- ✓ Compact 15-inch footprint and flying-ready design simplify transport and setup for touring
- ✓ Dual voice coil with Differential Drive technology provides tight, articulate bass response
Frequently asked questions
Which subwoofer goes lower?
The ASB6118-WH extends to 35 Hz, while the SRX915SF reaches 36 Hz linear. Both cover sub-bass effectively; the ASB6118-WH has a slight edge in extreme low-end reach.
Do I need an external amplifier for either?
The ASB6118-WH is passive and requires an external amplifier. The SRX915SF includes a built-in 2,500W Class D amp, eliminating external amp requirements.
Which is better for touring?
The SRX915SF is touring-optimized: it is compact, self-powered, and includes DSP tools for quick venue adaptation. The ASB6118-WH is heavier (98 lbs), passive, and better suited to permanent or semi-permanent installations.
What's the continuous SPL difference?
The ASB6118-WH produces 129 dB continuous SPL at 1 meter; the SRX915SF maxes out at 130 dB peak. For sustained output, the ASB6118-WH delivers more headroom in live applications.