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Seismic Subs

A dozen subwoofers to rock your world

JBL S120P II
($699)

JBL S120P IIWhat's in the Box?
Driver size 12 inches
Rated power 400 watts
Cabinet design ported
Finish black woodgrain
Controls variable 50- to 150-Hz low-pass crossover, level, auto-on, phase switch
Ins & outs LFE and line- and speaker-level inputs, speaker-level output with 150-Hz high-pass filter
Warranty 5 years speaker, 1 year electronics

How Big Is It?
Dimensions (WxHxD) 16 1/4 x 17 1/4 x 19 1/8 inches
Volume 3 1/8 cubic feet
Footprint 2 square feet
Weight 60 1/2 pounds

How Low Does It Go?
Bass limit 20 Hz at 76 dB

How Big the Bang?
Average SPL from 25 to 62 Hz 105 dB
Maximum SPL 112 dB at 50 Hz
Dollars per dB $6.66

JBL S120P II backWhat About Setup?
I measured the crossover range as only 65 to 80 Hz, so you'll need main speakers with solid bass capability for a smooth blend.

How Does It Sound?
The S120P II delivered strong bass - better than 107 dB at frequencies above 32 Hz - but it couldn't play loud enough at the lowest frequencies to provide a strong sense of envelopment and thunder.

The Bottom Line
A nicely styled, high-performance sub at an even nicer price.

Manufacturer JBL, www.jbl.com, 516-496-3400

PDF: In the Lab

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