Data Sheet
Frequency Range (+/-10 dB): 60 Hz to 20 kHz
Frequency Response (+/-3 dB): 85Hz - 17 kHz
Power Rating: 200 W Continuous Program (2 hrs)
100 W (400W peak), Continuous Pink Noise (2 hrs)
75 W (300W peak) Continuous Pink Noise (100 hrs)
Maximum Input Voltage: 25.3 V RMS (2 hrs), 50.6 V peak
Maximum SPL: 110 dB ave. Continuous Pink Noise (116 dB peak)
Sensitivity: 90 dB, 1W/1m (ave. 100 Hz – 10 kHz)
Coverage Angle: 100° x 100°
Directivity Factor (Q): 6.04 (averaged 1kHz – 16kHz)
Directivity Index (DI): 7.6dB (averaged 1kHz – 16kHz)
Nominal Impedance: 8 ohms (THRU setting)
Crossover Type: 2nd order low-pass, 3rd order high-pass
Circuitry:
Transformer Taps: 70V: 30W, 15W, 7.5W, 3.7W
100V: 30W, 15W, 7.5W
Insertion Loss <0.94 dB at any tap setting
ru Setting: 8 nominal
Recommended Protective High-Pass: 60 Hz high-pass (24 dB/oct) (for 8 operation and for all 70V/100V taps settings)..
Transducers:
Low Frequency Driver: 135 mm (5.25 in), woven-berglass cone with pure butyl rubber surround with Weather-Edge frame protection, high-temp
berglass voice coil former, high-temp voice coil wire, optimized cone geometry, linear suspension spider, and FEA optimized
motor structure.
High Frequency Driver: 19 mm (0.75 in) PEI diaphragm, low-viscosity ferro-magnetic uid, and lightweight Kapton™ voice coil former.
Physical:
Enclosure Material: High Impact Polystyrene (HIPS), painted with highly-UV resistant paint on white (-WH) version for maximum UV fade
resistance.
Grille: Highly zinc-plated, nished in durable TGIC polyester powdercoating. MTC-25WMG-1 (&-WH) available with Weather-
Max™ 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-25UB-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-25WMG-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-25WMG-1 WeatherMax™ grille for breaking up driving rain and for
especially dicult 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 protec-
tive panel covers available to provide sealed entrance for additional weather protection.
Agency Rating: ROHS-compliant; Transformer UL Recognized per UL1876
Colors: Black (RAL9004) or white (-WH, RAL9016)
Dimensions (H x W x D): 243 x 188 x 145 mm (9.6 x 7.4 x 5.7 in); 203 mm (8.0 in) deep total when mounted on InvisiBall wall-mount bracket.
Net Weight: 3.4 kg (7.5 lbs)
Shipping Weight: 8.16 kg (18 lbs) for the pair-pack (for 2 speakers)
Included Accessories: InvisiBall™ wall-mounting system), 6 mm x 100 mm hex key
Optional Accessories: MTC-25UB-1 – Yolk-type U-bracket (&-WH)
MTC-25WMG-1 – WeatherMax grille with backing (&-WH)
MTC-28/25CM – Ceiling-Mount InvisiBall adapter (&-WH)
Specications:
¹ In half-space (on-wall, 2
π
).
² At 8Ω setting. 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 a conservative expression of the system’s ability to handle normal speech and music program material.
Calculated from sensitivity and power handling, exclusive of power compression, at THRU setting.
Half-space (on-wall) averaged 100 Hz – 10 kHz, 2.83V.
Coverage angle (-6 dB) average between 1 kHz and 12 kHz.
For protection against driving below resonant frequency and to keep transformer out of saturation.
In vertical orientation