Atlas Sound GD87 8" Coaxial Loudspeaker

Brand:| Model: GD87
The high-quality, 25 watt GD87 utilizes a post mounted tweeter which adds strength to the assembly and provides an attractive appearance.
  • Individually packaged for stocking & ordering convenience
  • Industry standard 8" (203 mm) coaxial, 16 watt loudspeaker
  • High quality factory installed 8 watt line matching transformer
  • Offers proven performance with wide frequency response
  • Post-mounted tweeter adds strength and a more attractive appearance
Part # 
Weight: 3.45 lbs.  
Order Soon - Only 2 Left In Stock
List Price$42.95
You Save17%
Your Price
Part # 242-9374
Qty:  EA
Available Payment Methods

Product Details

Atlas Sound GD87 8" Coaxial Loudspeaker

The GD87 is a high performance coaxial loudspeaker with performance specifications identical to the legendary Atlas Sound Model C803A. This similarity in sonic quality insures that existing C803A systems may be expanded with the new GD87 without any noticeable sonic or performance differences. The high-quality, 25 watt GD87 utilizes a post mounted tweeter which adds strength to the assembly and provides an attractive appearance. This coaxial loudspeaker features a 45 Hz-19 kHz (nominal) frequency response and a broad, uniform dispersion pattern of 105° (2 kHz octave band). The GD87 combines a full-size 8" (203 mm) dia., low-frequency reproducer and a 3" (76 mm) high-frequency reproducer. The two sections are coupled via a built-in crossover network. The woofer has a 10 oz. (260 g) ceramic magnet; the tweeter has a 2.35 oz. (67 g) ceramic magnet. The unit has an average sensitivity of 96 dB (1W/1M). The loudspeaker is matched with a high efficiency 8 watt 70.7V transformer with a maximum insertion loss of 0.6 dB. This premium transformer is constructed of audio grade laminations and has a full range frequency response of +1 dB from 50 Hz to 15 kHz. The primary taps are 1, 2, 4, and 8 watts.

Specifications: • Depth: 2-7/8" (7.30 cm) • Diameter: 8-1/8" (20.64 cm) • Shipping weight: 4.33 lbs. (1.96 kg) • Frequency response: 55 Hz-15 kHz (±7 dB) • Power taps: 1, 2, 4, 8 • Speaker type: Treated paper • Dispersion: 105° (2 kHz Octave Band, -6 dB Points) • Sensitivity: 96 dB average • UL listed/standard: 1480, 2043.

Product Specifications
  • Input Rating70V
  • Mounting StyleIn-ceiling
  • Special FeaturesUL1480,UL2043
  • Woofer Diameter8"
Atlas Sound GD87 8" Coaxial Loudspeaker
  • BrandAtlas Sound
  • ModelGD87
  • Part Number242-9374
  • UPC612079179978
  • Product CategoryIn-Ceiling / On-Ceiling Speakers
  • Unit of MeasureEA
  • Weight3.45 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Similar Products

View similar products to the Atlas Sound GD87 8" Coaxial Loudspeaker
in the In-Ceiling / On-Ceiling Speakers product category.


Atlas Sound GD87 8" Coaxial Loudspeaker

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Atlas Sound GD87 8" Coaxial Loudspeaker

Optimal enclosure size/type for hifi use

I like the high efficiency of these and plan to use them for hifiwith a T-amp. What is the ideal box size/type for best bass? Ifbass reflex, how large/long should the port tube be?
Asked by: Fullrange2241
This speaker is only intended to be used for a public address in ceiling application and would not be a good choice for hi-fi use. This is the reason the parameters are not listed for modeling an enclosure. This will have a very high Qts which means a large sealed or open baffle enclosure are recommended, but due to a very high Fs I wouldn't expect anything below 150 Hz from this driver regardless of size/type of enclosure.
Answered by: MattP
Date published: 2012-09-29

Customer Projects

Customer projects that include: Atlas Sound GD87 8" Coaxial Loudspeaker

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.

Recently Viewed Products

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA

© 1996-2015 Parts Express, All Rights Reserved

Live Chat Software