Menu × Recording Live Sound Microphones DJ Lighting Installation Video Accessories Brands Specials
My Account Track Order Contact Us Services Events Blog Newsletter Apps

Toll Free: (800) 771-8330

JBL 4642A

  • Out of Stock
  • Usually arrives in 5-10 business days
Call for price!
Not available to purchase online.

Please Contact Us for more information.

(800) 771-8330
  • Out of Stock
  • Usually arrives in 5-10 business days

THX Approved Dual 18" High Power Subwoofer

Limited Time Offer! — Your purchase is automatically entered to win a mixer or studio monitors! Oct 5, 2017 to Oct 21, 2017 Every purchase of AKG, AMX, BSS, Crown, dbx, JBL, Martin, Lexicon or Soundcraft items from now through October 21, 2017 is automatically entered to win one of two great prizes! You could win either a Soundcraft Signature 12MTK Multi-Track Mixer with Effects & USB ($449 value!) or a pair of JBL LSR305 5" Powered Studio Monitors ($298 value!). The two winning names will be drawn at random from a compiled list of in-store and online invoices containing purchases of AKG, AMX, BSS, Crown, dbx, JBL, Martin, Lexicon or Soundcraft items. We will announce the winners via social media. Good luck!

Overview

The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4642A is ideal for low-frequency augmentation of either analog or digital soundtracks in motion picture theaters and for general sound reinforcement applications.

Transducer:
The 2241H transducer utilizes the patented Vented Gap Cooling (VGC) process*, which pumps air through the magnetic gap and directly over and around the voice coil, providing immediate heat transfer and a reduction in operating temperature. This increases power handling while reducing power compression.

Through the use of computer-aided magnet optimization and analysis techniques, JBL engineers were able to optimize magnet weight, flux density and field saturation, resulting in a 2.6 kg (6.5 lb) reduction in overall driver weight and a significant reduction in harmonic distortion. This magnet structure offers much of the weight advantage of rare earth magnet structures without the prohibitive cost, enabling the system to carry a 1200 watt continuous AES pink noise power rating.

Features:

  • 1200 Watts Continuous Pink Noise, 2400 Watts Continuous Program Power Handling

  • Usable response to 22 Hz (-10 dB, no EQ), flat to 22 Hz (-3 dB) with External EQ

  • 2241H VGCTM Vented Gap Cooled Drivers- High Sensitivity- Low Power Compression- High Maximum-SPL Capability- Low 2nd and 3rd Harmonic- Distortion- Symmetrical Field Geometry SFGTM- Magnet Structure- Long Excursion Capability

  • Approved by Lucasfilm, Ltd. for THX installations


Specifications:

  • TRANSDUCERS: Two JBL Model 2241H 460 mm (18 in) Low Frequency Transducers

  • SYSTEM:

  • Rated Impedance: 4 ohms

  • Minimum Impedance: 3.2 ohms

  • POWER HANDLING CAPABILITY:Continuous Pink Noise: 1200 WattsContinuous Program: 2400 WattsPeak Power: 4800 Watts

  • OUTPUT CAPABILITY:

  • Axial Sensitivity:50 Hz to 500 Hz; 101 dB, 1W @ 1m40 Hz to 100 Hz; 100 dB, 1W @ 1m

  • Power Compression:At -10 dB power (120 W): 0.8 dBAt -3 dB power (600 W): 2.6 dBAt rated power (1200 W): 4.3 dB

  • FREQUENCY RESPONSE:Lower Frequency Limits (no EQ):-10 dB: 22 Hz-3 dB: 35 HzLower Frequency Limits (with EQ):-10 dB: 20 Hz-3 dB: 22 Hz

  • Recommended Crossover Frequencies:High-pass: 20 Hz, 12 dB/octave or greaterLow-pass: 80 Hz to 150 Hz, 12 dB/octave or greater
  • Distortion:2nd harmonic: <2%3rd harmonic: <2%

  • System Polarity: EIA Standard. Positive voltage to RED terminal produces forward cone motion.

  • Input Connectors: Color-coded push terminals

  • Net Weight: 98 kg (216 lbs.)

  • Shipping Weight: 109 kg (240 lbs.)

  • ENCLOSURE:

  • Materials and Finish: 19 mm (3/4 in) particle board with 25 mm (1 in) baffle and back panel. Extensive bracing on all panels

  • Enclosure Tuning Frequency: 25 Hz

  • Net Internal Volume: 506 liters (18 cu. ft)

  • Dimensions: 762 mm x 1219 mm x 610 mm, H x W x D 30 in x 48 in x 24 in

Documents

Q & A

Brand
JBL
Model
4642A
MFR Part Number
4642A
Product Category
Unpowered Subwoofers, Install & Contracting Speakers
Unit of Measure
EACH
Shipping Weight
265.74 lbs.
Page Views
12741
Previous JBL product
Next JBL product
Connect with Performance Audio
Sign up for our newsletter.
Click here to see our current newsletter >
Why Choose Performance Audio?
Light Bulb

40+ Years in the Business

Performance Audio isn't new to Pro Audio & Video. We have been servicing the needs of professionals for over 40 years! We have the expertise to help you get the job done right. The first time.

Globe

Real World Convenience

Performance Audio has built lasting relationships with the brands you love! We have decades of experience working with our suppliers. We are equipped to get you what you need, when you need it. When you need it.

Staff

Staff with Know-How

Performance Audio has long believed that experience and knowledge are vital to building relationships with our customers. We focus on getting, and keeping, a staff who know and love the Pro Audio & Video world. People like you.

Prices

Prices That Don't Suck

Performance Audio is one of the largest suppliers of professional audio & video gear in the Mountain West. We have one of the largest inventories in the industry. That means we can save you money! The right price.

Resources

Specials Shop by Brand Manufacturer Directory Request a Quote Get our iOS Apps
McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Performance Audio LLC BBB Business Review

Performance Audio Coupons on Ultimate Coupons
Performance Audio Apps on the iTunes App Store, Audio Tool, Decibel Meter Pro, Tone Generator Pro

© 2017 Performance Audio, LLC. All rights reserved.

All brand, company or product names contained may be trademarks or registered trademarks of their respective owners. Prices, specifications, and images are subject to change without notice. Not responsible for typographical or illustrative errors. All prices listed are in US dollars and do not include shipping and/or sales tax, when applicable.