Beta twin 18 sub woofer bass passive speaker 2000w rms (b-grade)

$479.00
+ $276.99 Shipping

Beta twin 18 sub woofer bass passive speaker 2000w rms (b-grade)

By BishopSound

Price: $479.00
$479.00 + $276.99 Shipping

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Description

This listing is for a Twin 18" Subwoofer which needs painting and some minor restoration due to the odd ding in the cabinet. Features Passive 2000w RMS 18" bass-reflex PA subwoofer 135 dB maximum sound pressure level Deep bass down to 33 Hz through 18" BDP18 BishopSound Woofer Speakon In, Speakon Out Can be used horizontally or vertically Rugged birch multiplex/MDF hybrid enclosure 18 mm plywood cabinet with extremely durable polyurea coating Easy handling through ergonomic handles and stacking dimples Shock-resistant front grille to protect the loudspeaker Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour Acoustic foam behind the grille to prevent moisture and dust ingression Painted with 4 coats textured, tough durable acrylic PU polymer paint Chunky tactile steel handles This is my most popular subwoofer delivering 135dB SPL. I only talk about RMS ratings but if you are comparing with inferior brands the BB218 program power is 4000w and the peak power is 8000w per cabinet. We load two of the BDP18 driver into this cabinet. This superior cast alloy driver is rated at 8 ohms and has a 4" voice coil. Learn more by reading technical specifications. I never use other people's drivers in my subwoofers. I make my own as I want to match the drivers perfectly to the cabinet and our cabinets have stood the test of time for over 20 years. We carry spares and replacement parts but rarely need them. Enjoy the punchy tight bass of our best ever twin 18" sub. Bob Marley and Level 42 have never sounded as good. Important information about subwoofers Subwoofers are designed to reproduce low bass audio signals between 30Hz and 150Hz. Driving them with full frequencies will cause permanent damage, so they should only be operated with a passive low-pass filter, a crossover network, or an active electronic crossover or speaker management system. %SPECS% Dual 18" PA Subwoofer Woofer Magnet: Ferrite Woofer :BDP18 1000w 2 x 8ohm Woofer Voice Coil: 4 " Load Rating (RMS): 2000 W Peak Power: 8000 W Max. SPL: 135 Db Impedance: 84 Ohm Cabinet Material:  Cabinet Surface: Polyurea Cabinet Construction: Vented Countersunk Extra Tick "ding proof" grille to prevent grill damage when on tour Acoustic foam behind the grille to prevent moisture and dust ingression Rugged birch multiplex/MDF hybrid enclosure with 4 coats textured, tough durable acrylic PU polymer paint Chunky tactile steel handles Depth (mm): 600 Height (mm): 1220 Width (mm): 820 Net weight (kg): 76 Frequency Response (Hz): 33 Hz - 200Hz  Gross Weight (kg): 82 Carton Dims = 75x62x130 BISHOPSOUND BDP18 SUB BASS WOOFER 18″ 1000W  Nominal Overall Diameter: 460 mm Nominal Voice Coil Diameter: 100 mm Magnet Weight: 125 OZ Flux Density: 1.42 T Weight: 11.2 K   THIELE-SMALL PARAMETERS Voice Coil DC Resistance Re 5.6 Ω Resonance Frequency Fs 34.8 Hz Mechanical Q Factor Qms 11.48 Electrical Q Factor Qes 0.57 Total Q Factor Qts 0.543 Mechanical Moving Mass Mms 202.6 g Mechanical Compliance Cms 103.05 um/N Force Factor BL 20.87 Wb/m Equivalent Acoustic Volume Vas 219.7 It. Maximum Linear Displacement Xmax ±7 mm Reference Efficiency ηo 1.575 % Diaphragm Area Sd 122.

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Specification

Brand BishopSound
Category Speakers
Fruugo ID 51734451-104145809
Retailer VRN GB241029250