테크데이타피에스

Frequency Range (-10 dB)	45 Hz to 20 kHz
Frequency Response (+/-3 dB)	62Hz - 16 kHz
Power Rating	240 W Continuous Program (2 hrs) *Continuous Pink Noise rating is IEC-shaped pink noise with a 6 dB crest factor. Continuous Program Power is defined as 3 dB above the Continuous Pink Noise Rating and is conservative expression of the system’s ability to handle normal speech and music program material.
Maximum Input Voltage	27.5 V RMS (2 hrs), 55.0 V peak
Maximum SPL	112 dB ave. Continuous Pink Noise (118 dB peak) *Calculated from sensitivity and power handling, exclusive of power compression.
Sensitivity	91 dB, 1W/1m (ave. 100 Hz – 10 kHz) *Half-space (on-wall) averaged 100 Hz – 10 kHz, 2.83V.
Coverage Angle	100° x 100° *Coverage angle (-6 dB) average between 600 Hz and 12 kHz.
Directivity Factor (Q)	7.3 (averaged 1kHz – 16kHz)
Nominal Impedance	8 ohms
Crossover Type	2nd order low-pass, 1st order high-pass, plus conjugate shaping
Recommended Protective High-Pass	45 Hz high-pass (24 dB/oct) *For protection against driving below resonant frequency and to keep transformer out of saturation.
Low Frequency Driver	200 mm (8 in), woven-fiberglass cone with pure butyl rubber surround with Weather-Edge frame protection, high-temp fiberglass voice coil former, high-temp voice coil wire, optimized cone geometry, linear suspension spider, and FEA optimized motor structure.
High Frequency Driver	25 mm (1 in) PEI diaphragm, low-viscosity ferro-magnetic fluid, and lightweight Kapton™ voice coil former.
Enclosure Material	High Impact Polystyrene (HIPS) with 10% glass fill, painted with highly-UV resistant paint on white (-WH) version for maximum UV fade resistance.
Grille	Highly zinc-plated, finished in durable TGIC polyester powdercoating. MTC-28WMG-1 (&-WH) available with WeatherMax™ multi-layer foam and tight-weave mesh vapor barrier backing.
Installation	InvisiBall wall-mounting system included. Two 6 mm attachment points (on top and bottom) for optional MTC-28WMG-1 (&-WH) U-bracket. Secondary safety attachment loop point on back panel.
Environmental	IP-44 per IEC529 (IP-55 when installed with the optional MTC-28WMG-1 WeatherMax™ grille and either MTC-PC2 or MTC-PC3 panel cover.) Exceeds MilSpec 810 for humidity, salt-spray, temperature & UV. Passes MilStd-202F for salt spray and ASTM G85 for acid-air plus salt spray. Optional MTC-28WMG-1 WeatherMax™ grille for breaking up driving rain and for especially difficult environments.
Termination	Screw-down terminal strip, zinc-plated copper based, nickel-plated metal screws and washers. Accepts up to 9 mm outside 4 mm inside open lugs (#6, #8, or #10 lug), plus bare wire (up to 12 AWG / 2.5 mm2). Optional MTC-PC2 and MTC-PC3 protective panel covers available to provide sealed entrance for additional weather protection.
Agency Rating	ROHS-compliant
Colors	Black (RAL9004) or white (-WH, RAL9016)
Dimensions (H x W x D)	386 x 282 x 219 mm (15.2 x 11.1 x 8.6 in); 277 mm (10.9 in) deep total when mounted on InvisiBall wall-mount bracket. *In vertical orientation
Net Weight	6.2 kg (13.5 lbs)
Shipping Weight	13.4 kg (29.5 lbs) pair-packed (for 2 speakers)
Included Accessories	InvisiBall™ wall-mounting system, 6 mm x 180 mm hex key
Optional Accessories	MTC-28UB-1 – Yolk-type U-bracket (&-WH)

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