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OSD Audio

OSD Audio R83A

In stock
OSD Audio R83A has a rating of 4 stars based on 1 reviews.

R83A is a part of the top of the line BLACK series speakers called Reference. It is also the largest in-ceiling speaker from OSD Audio, featuring;

  • 8” Carbon Fiber Woofer
  • 15° angle for optimised placement of speaker vs listening position
  • (TPR) Thermoplastic Rubber Surround
  • 1” Pivoting Ceramic Coated Aluminum Dome Tweeter
  • Contour Switch (+3/0/-3 dB)
  • Second Order Crossover Network with air core coil, Mylar bypass capacitor and vented protective shield

Reference Series

BLACK in-wall and in-ceiling speakers perform a near miraculous disappearing act. Rather than a wide flange found on most built-in speakers, BLACK speakers feature flange-free Perfect Edge™ magnetic grilles that minimize the visible footprint of the speaker for a clean, elegant and unobtrusive appearance.


BLACK by Optimal Speaker Design is a range of premium quality flush mount loudspeakers designed to serve discriminating homeowners and A/V integrators who demand the ultimate in aesthetic style and audio performance. BLACK products includes unique features and technologies that make them better looking, easier to install and more durable, while delivering lifelike sound quality more typically found in free-standing audiophile grade speakers.There are BLACK models to fit every distributed audio and home theater application and space, offered in three performance levels: Acoustic, Performance and Reference. BLACK products are sold only through custom installation Audio Video specialist dealers in order to ensure proper system design, installation and total customer satisfaction.

A - Angle

The speakers in the black series with "A" in the model name has a 15° angle to optimise the placement of the loudspeaker and listening position. It will throw the sound in one direction instead of spreading it in all directions. With this kind of angle the speaker will work very well in a stereo system, or as front speakers in a home cinema system where you utilize three speakers. Stereo or multi-channel setups, you will experience a more realistic soundstage that comes from the front of the room with better directivity.

The speaker can also be used in Atmos systems, the speaker is angled towards the listening position. It works extremely well in this setup.

Square Options

BLACK round in-ceiling models offer a square grille option to match the aesthetic of rectangular architectural elements such as lighting fixtures and air registers. While other brands may offer that option, only BLACK does it right with a square mask that doesn’t “telegraph” the round speaker shadow behind the grille.

Optional Square-Grille Kit is sold separately.

TPR Rubber Surround

For installs in tough environments such as indoor pool areas, outdoors under eaves and commercial settings, use BLACK Reference series models. Their woofer surrounds are fabricated from injection molded Thermoplastic Rubber (TPR) – a copolymer that has superior damping characteristics and greater resistance to chemicals, UV and pollutants.

Custom crossover

BLACK Reference and Performance models feature audiophile-grade crossover components including Mylar bypass capacitors to enhance high frequency extension for exceptional clarity and “air.” Shields* protect the components from debris and suffocating insulation while integrated air vents keep things cool.

Contour Switch

Reference and Performance speakers offer a high frequency contour switch with -3dB, 0 (flat) and +3 dB settings to match speaker performance to the room acoustics. Highly reflective “live” rooms benefit from a -3dB HF reduction while fabric-heavy “dead” rooms will sound better with tweeters boosted +3dB.

Pro Mounting

Installers will appreciate the BLACK mounting system for its ease and robust construction. BLACK’s rotating clamps have brass inserts to prevent thread stripping. The stainless steel machine bolts are thread-strip and rust resistant. Rubber damping pads on the mounting clamps minimize the likelihood of sheetrock blowout and damp resonance, vibration and buzzing. Better installs, better sound, it’s all better with BLACK.


  • Woofer: 8" Carbon Fiber woofer, with (TPR) rubber suspension
  • 15° angle for optimised placement of speaker vs listening position
  • Tweeter: 1" Pivoting Aluminum Dome tweeter with ceramic coating, 2nd. order crossover (12dB) and level adjustment (+3/0/-3 dB)
  • Frequency response: 28Hz - 22kHz
  • Power: 175W
  • Sensitivity: 92dB
  • Size: 29,5 x 13,7 cm (diameter x depth)
  • Mounting hole: 25,4 cm in diameter
  • Square-grille Kit: sold separately