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US-CA1532 Dual 15 inch Low Frequency System
Dual 15" System

US-CA1532

Dual 381mm (15") Low Frequency System

A dedicated LF bin built around twin CA1860 15" drivers, ported between the two cones for high-output bass reinforcement. Where the US-CA3310 bass bin handles screen channel duty, the US-CA1532 stands alone — built for installations that need serious dual-15 low end without the M/HF horn section on top. A flexible building block for custom screen channel or LFE configurations.

Assembled in India
Components from USA
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What makes it different

Two CA1860 drivers in one enclosure share the load, dropping distortion at high SPL compared to a single 18" doing the same job. 101 dB sensitivity keeps amplifier demands reasonable even in large halls. EIA standard polarity. Enclosure dimensions: 450 × 884 × 762 mm (18" × 34.8" × 30").

Specifications
Nominal Basket Diameter
15" / 381 mm
Nominal Impedance
8 Ω
Program Power
1200 W
Nominal Power
600 W
Resonance
32 Hz
Usable Freq. Range
22 Hz – 0.7 kHz
Sensitivity
101 dB SPL @ 1W/1m
Magnet Weight
120 oz
Gap Height
0.37" / 9.5 mm
Voice Coil Diameter
3" / 76 mm
Xmax
8 mm
Thiele & Small Parameters
Fs
32 Hz
Re
5.39 Ω
Le
1.21 mH
Qms
10.66
Qes
0.34
Qts
0.33
Vas
13.83 cu.ft. / 391.61 litres
Vd
927.2 cc
Cms
0.21 mm/N
BL
19.39 T-M
Mms
119 grams
EBP
94
Xmax
8 mm
Sd
1159 cm²
Xlim
18 mm
Enclosure / System Details
Low Frequency Driver2× CA1860 15"
Rated Impedance4 Ω
System PolarityEIA Standard. Positive voltage to RED terminal
Dimensions450 × 884 × 762 mm / 18" × 34.8" × 30"
Materials of Construction
Copper voice coilPolyimide formerFerrite magnetVented corePressed steel basketTreated paper coneSealed cloth cone edgeTreated paper dust cap

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