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JBL GTO Series GT120

12" 4-ohm Subwoofer

1 Review

Item #: 109GT120

This item is no longer available.

Original Price: $89.99

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JBL GTO Series GT120

Overview

Our take on the JBL GTO Series GT120

JBL knows that everybody has different tastes in bass — that's why they designed GTO Series subwoofers to work great in sealed, vented, or bandpass enclosures. JBL packed over a half century of speaker-building experience into creating these GTO subs, so you can hear bass the way you like it!

JBL knows that everybody has different tastes in bass — that's why they designed GTO Series subwoofers to work great in sealed, vented, or bandpass enclosures. JBL packed over a half century of speaker-building experience into creating these GTO subs, so you can hear bass the way you like it!

The GT120 12" subwoofer boasts a polypropylene cone that's lightweight and ultra-efficient, so you won't need as much power to drive your low notes. But if you like to crank it up, the butyl rubber surround, dual 40-ounce magnets, and progressive spider ensure that this woofer won't bottom out when the going gets tough.

Details:

  • polypropylene cone with butyl rubber surround
  • dual 40-ounce magnets
  • power range 55-250 watts RMS
  • peak power 1,000 watts
  • frequency range 23-450 Hz
  • sensitivity 93 dB SPL
  • impedance 4 ohms
  • top mount depth 6"
  • sealed box volume 1.0 cubic feet
  • ported box volume 2.25 cubic feet
  • Recommended Q-Logic Box Type: 1
  • 1-year warranty

Priced per speaker

What's in the Box:

  • One 12" woofer
  • Owner's Manual
  • Technical Data sheet
  • Warranty card
  • "JBL" sticker
Reviews

JBL GTO Series GT120 Reviews

Average Customer Review:

1 Review

jbl g120

Written by: k1 from boston ma on December 27, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

these subs are a great buy for the price, the sound quality is great, I have it running off a 2 channel amp with 250 rms to each sub. the subs have a lot of punch and are still capable of reaching very low notes. definatly a great buy to b the loudest kid in the neihbourhood but not at a competition. I gave it a 4 because for the price and value its a lot of quality bass and durability. jbl stands up to there name in there line of competition subs. can def. give u a great massage but not capable of making u sick like my p1222's , great buy

Pros: functions great, lots of quality bass and excursion when powered properly! always give alteast 70% rms power to ure sub to prevent clipping and ruining ure subwoofers ppl! works great easy to wire and install.

Cons: not the strongest sub u can get on the market and these are sumwhat outdated but wrth the money.

Details

Hands-on research

What's in the box?

Download the JBL GTO Series GT120 manual

  • One 12" woofer
  • Owner's Manual
  • Technical Data sheet
  • Warranty card
  • "JBL" sticker

Product Research

Features
Enclosure Compatibility

Features

Polypropylene Woofer Cone: The woofer cone is made with polypropylene for exceptional transient attack. The cone is light, but strong enough to maintain its shape at high output levels.

Butyl Rubber Surround: A butyl rubber surround is used to guarantee long-term reliability by rejecting moisture and ultraviolet contamination.

Progressive Spider: This woofer is made with a progressive spider. A progressive spider is used because it provides better control than a linear spider at the woofer's excursion limits.

High SPL: A long Xmax (cone excursion limit) and dual 40 oz. magnets make this woofer ideal for high output applications.

Enclosure Compatibility

Recommended Sealed Box Volume: JBL recommends a 1.0 cu/ft sealed enclosure.

Recommended Ported Box Volume: JBL recommends a ported box with an internal volume of 2.25 cu/ft. One 4" diameter x 13.31" long port should be used with a 2.25 cu/ft enclosure.

Recommended Sealed Bandpass Box Volume: JBL recommends a bandpass box with an internal volume of 3.5 cu/ft. The 3.5 cu/ft enclosure should have a sealed chamber volume of 1.5 cu/ft and a ported chamber volume of 2.0 cu/ft. One 6" diameter x 10.57" long port should be used in the ported chamber.

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