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JBL JRX 118S 18” Compact Subwoofer

Dolphin id:
4981
Product SKU:
JRX118S

This product is currently not available for purchase.

JBL 18" Compact Subwoofer. The JRX118S is an 18" compact direct-radiation subwoofer designed to supplement and extend low frequency performance of full-range systems in live sound and music playback applications.

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It is an excellent choice for use with powered fullrange speakers or in systems using powered mixers. The JRX118S is driven by a massive JBL 18" woofer with a cast frame and 3" voice-coil. It’s rated at 350 watts (continuous) and 1400 watts (peak) – based on JBL Professional’s 100 hour extended life test.

Key Features:

  • 18" compact subwoofer
  • 300 watt (continuous), 1200 watt (peak) power capacity
  • The rugged enclosure is constructed from 19 mm (¾ in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved low-frequency performance. The enclosure is covered in black carpet.
  • A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX118SP as a base for a midhigh speaker cabinet.
  • High-voltage capacitors and inductors with massive cores and heavy gauge wire enable the crossover network to handle high power without saturating.
  • Non-resonant, all steel handles are used.
  • Attractive 18-gauge perforated steel grille protects components from damage.
  • 35 mm pole mount receptacle for use with satellite speakers.

Specifications

  • System Type: 18" compact subwoofer
  • Frequency Range (-10 dB): 38 Hz - 300 Hz1
  • Frequency Response (±3 dB): 55 Hz - 300 Hz1
  • Nominal Impedance: 4 Ohms
  • Rated Maximum SPL: 127 dB peak, @1 m (3.3 ft) at 500 watts2
  • Power Capacity: 300 watts3
  • Peak Power Capacity: 1200 watts3
  • Recommended Amplifier 300 - 600 watts
  • Power: @ 4 ohms
  • Dimensions (H x W x D): 605 mm x 508 mm x 551 mm (23.8 in x 20.0 in x 21.7 in)
  • Net Weight: 32.2 kg (71 lb)
  • Shipping Weight: 36.8 kg (81 lb)
  • LF Driver: 2043-G
  • Input Connectors: Neutrik® Speakon® NL-4 (x2); ¼" TS phone jack (x1) parallel
  • Enclosure Construction: 19 mm (¾ in) MDF (Medium Density Fiberboard) with glued and mechanically fastened joint detail; covered in black carpet.
  • Grille: 18-gauge, powder-coated steel
  • Optional Accessory: SS3BK

1 Frequency Range and Frequency Response are based on half-space conditions.
2 Calculated half-space performance based upon peak power capacity.
3 “Power Capacity” and “Peak Power Capacity” ratings are based on the average and peak power capacity of product
samples subjected to a 100 hour power test using random noise with a 6 dB crest factor, in accordance with IEC standards.

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JBL JRX 118S 18” Compact Subwoofer Reviews

7/10

JRX 118S

This sub is great if you have at least two. Sensitivity and response are as good as you can expect at this price range. Unfortunately it\'s true that it doesn\'t go as deep as you would expect, but given the size of the cabinet and the price, it doesn\'t do a bad job, especially for live sound applications where a clear punchy bass is more valuable than ultra-deep bass.

To summarise; A good value rumble box.

5/10

JBLsub - Not too bad...

Well, I\'m going to keep this one short... I\'ve had the chance to hear a lot of PA kit in my time and I try not to favour one brand over the other. I think each one has their pro\'s and cons.

Well firstly the JBL fits in well with smaller loudspeakers because of it\'s upper bass response. So it suits smaller full range speakers in your PA set-up. Thats great if you carry smaller PA speakers as mains.

Where I did find they go wrong is, they don\'t go as deep as you\'d normally expect from an 18\" bin. However it does offer a more musical sound than some bass bins.

As for power, this is more for smaller rooms. It really is only capable of what it says on the tin, I wouldn\'t listen to the Peak rating as it doesn\'t like a big QSC PL380 amp at all and I would say at maximum power it with 400 watts with give and take a few tens of watts for overhead.

It\'s not that bad, but I just found it weak in my application - but I\'m sure it has it\'s place for others. It sounds good for a smaller venue.

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