Assessments - 5, GPA: 3.6
(
)
)
|
Facilidade de uso
Clear, intelligible speech and good music reproduction are ensured because of the extended 60-15,000 Hz range. Loudspeaker impedance rating is 8 ohms. The Model 405-8HT incorporates a 70-volt line transformer for applications in distributed sound systems. These quality loudspeakers are designed for continuous, trouble-free service. The frame and housing of the magnetic structures are fabricated of heavy-gauge steel. The small size of the speakers allows either front or rear mounting in walls, partitions, ceilings, and into volumes as low as 0.1 cubic feet. SPECIFICATIONS Power Rating: Frequency Response: Pressure Sensitivity: Impedance: 25/70 Volt Taps: Insertion Loss: Transformer Frequency Response: Nominal Free-Air Cone Resonance: Nominal Distribution Pattern: ’Distribution Pattern With Polar to Planer Correction: Voice Coil Diameter: Magnet Structure— Magnet Type: Magnet Weight: Flux Density: Construction-Frame (Basket): Cone: Cone Suspension: Voice Coil: Voice Coil Support Material: Cone Excursion: Terminals— Speaker: Transformer: Mounting Data— Baffle Opening: Mounting Bolt Centers: Dimensions— Model 405-8H: Model 405-8HT: Weight— Model 405-8H: Model 405-8HT: Color: 15 watts continuous pink noise (above 50 Hz) 60-15,000 Hz 91 dB SPL measured at 4' on axis with 1 watt input of pink noise, band-limited from 500-3000 Hz (Ref.: 0 dB = 0.0002 dyne/cm2) 8 ohms 4, 2,1,0.5 watts (Model 405-8HT only) 1.0 dB max. (405-8HT only) ±1 dB, 100-10,000 Hz (Model 405-8HT only) 120 Hz 90° 107° at 2 kHz 69“ at 4 kHz 1" Ceramic (V) 1% pounds 10,250 gauss Structurally reinforced die-cast aluminum Molded fiber High-compliance foam surround Copper Kapton®** 0.125" max. peak to peak 0.205" (0.52 cm) spade lug type Pigtails 3.812" (9.68 cm) diameter (rear mounted) 4.125" (10.48 cm) diameter (front mounted) 4 equally spaced slots 90° apart on 4.75" (12.07 cm) diameter circle 5.132" (13.49 cm) diameter 2.125" (5.40 cm) depth 4.063" (10.32 cm) depth 2 lbs. 1 oz. (0.94 kg) 2 lbs. 9 oz. (1.2 kg) ALTEC black *See Technical Letter No. 257, "Sound Distribution on a Plane Normal to a Loudspeaker Axis." *Kapton® is a registered trademark of DuPont. i im MOUNTING DIMENSIONS (A) LOUDSPEAKER DIAMETER: (B) LOUDSPEAKER DEPTH: (C) BAFFLE OPENING DIAMETER (Front Mounted) (C) BAFFLE OPENING DIAMETER (Rear Mounted) (D) BOLT CIRCLE DIAMETER: (E) BOLT HOLE SLOTS: MODEL 405-8H MODEL 405-8HT 405-8HT LEAD COLOR WATTS 5.312" (13.49 cm) 2.125" (5.40 cm) 4.125" (10.48 cm) 5.312" (13.49 cm) 4.063" (10.32 cm) 4.125" (10.48 cm) 3.812" (9.68 cm) 3.812" (9.68 cm) Black Green Yellow Red Brown Common 4W 2W 1W Vi\N 4.75" (12.07 cm) 0.20" (0.52 cm) x 0.25" (0.64 cm) SPECIFICATIONS ARCHITECT'S AND ENGINEER'S MODEL 405-8H The loudspeaker shall meet the following performance and structural criteria. Power rating, 15 watts. Frequency response, uniform from 60-15,000 Hz. Pressure sensitivity, 91 dB SPL when measured at 4' on axis ...
Este manual também é adequado para os modelos :Speakers - 405-8HT (1.25 mb)