Special Order Notice: This item is ordered directly from the manufacturer upon purchase. Procurement begins immediately, with most special order items delivering in approximately 2 weeks.
The OSD Black Series S81-MK2 8-Inch On-Wall Triple Tweeter Reference Speaker (Sold as Single) is a high-power audiophile monitor hand-crafted for high-output home cinemas, screening rooms, and dedicated listening studios where in-wall installation is impossible. Engineered with an 8-inch woven carbon fiber long-throw woofer and a precision-aligned array of three 1-inch aluminum dome tweeters, the S81-MK2 delivers massive dynamic headroom, ultra-wide horizontal dispersion, and concert-level realism without harshness.
If you want to know how to install reference-grade theater audio on solid masonry, concrete, or existing drywall without cutting large structural holes, how to achieve cinema sound pressure levels with low distortion, or what on-wall speaker incorporates a triple-tweeter array for superior vertical beam control and broad horizontal coverage, the OSD Black S81-MK2 provides the ultimate solution. Serious theater designers and audiophiles requiring 200W RMS power capacity, custom-tuned internal MDF damping, and heavy-duty cleat wall mounting will appreciate the uncompromising craftsmanship of this built-to-order monitor.
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The OSD Black Series S81-MK2 8-Inch On-Wall Triple Tweeter Reference Speaker (Sold as Single) is a high-power audiophile monitor hand-crafted for high-output home cinemas, screening rooms, and dedicated listening studios where in-wall installation is impossible. Engineered with an 8-inch woven carbon fiber long-throw woofer and a precision-aligned array of three 1-inch aluminum dome tweeters, the S81-MK2 delivers massive dynamic headroom, ultra-wide horizontal dispersion, and concert-level realism without harshness.If you want to know how to install reference-grade theater audio on solid masonry, concrete, or existing drywall without cutting large structural holes, how to achieve cinema sound pressure levels with low distortion, or what on-wall speaker incorporates a triple-tweeter array for superior vertical beam control and broad horizontal coverage, the OSD Black S81-MK2 provides the ultimate solution. Serious theater designers and audiophiles requiring 200W RMS power capacity, custom-tuned internal MDF damping, and heavy-duty cleat wall mounting will appreciate the uncompromising craftsmanship of this built-to-order monitor.Features:Packaging Quantity: Sold individually as a Single speaker for flexible Left, Right, Center, or Surround integration.Triple Tweeter Acoustic Array: Vertical alignment of three 1-inch aluminum dome tweeters maximizes power handling and widens horizontal sweet spot.High-Excursion 8-Inch Carbon Fiber Woofer: Custom-wound voice coil and rigid carbon weave cone deliver deep, articulate punch down to 40 Hz.Ultra-Slim 5.7-Inch Depth Profile: Mounts cleanly beside large 4K/8K projection screens and ultra-large flat-panel televisions.Heavy-Duty French Cleat Mounting System: Included interlocking metal wall bracket provides rock-solid, vibration-free hanging.Sealed Acoustic Suspension Enclosure: Eliminates port turbulence and allows flush-to-wall mounting with zero boundary bass bloat.High Power Handling: Handles 200 Watts RMS and 350 Watts peak for effortless dynamic peaks during action movie soundtracks.Audiophile Point-to-Point Crossover: Hand-soldered crossover board with polypropylene capacitors and air-core inductors.Acoustically Transparent Magnetic Grille: Clean magnetic attachment preserves clean architectural lines when grille is on or off.Specifications:Acoustic & Electrical Performance:Packaging: Sold Individually as a Single Speaker (1 Unit)Speaker Type: High-Output On-Wall Reference Theater MonitorLow-Frequency Driver: 8-Inch (203 mm) Woven Carbon Fiber Woofer with Rubber SurroundHigh-Frequency Array: Triple 1-Inch (25 mm) Precision Aluminum Dome Tweeters in Line ArrayPower Handling: 200 Watts RMS / 350 Watts PeakNominal Impedance: 4 OhmsFrequency Response: 40 Hz - 22 kHzSensitivity: 91 dB (2.83V/1m)Cabinet Construction & Dimensions:Enclosure Type: Sealed Acoustic Suspension Damped MDF CabinetDimensions (W x H x D): 12.0" x 19.0" x 5.71" (30.5 x 48.3 x 14.5 cm)Mounting Method: Integrated Rear Keyholes & Heavy-Duty Cleat Wall BracketFinish: Satin Black Acoustic Enclosure with Magnetic Fabric GrilleSpeaker Terminals: 5-Way Gold-Plated Binding PostsProduct Net Weight: 24.2 lbs (11.0 kg)
