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Dayton Audio

Dayton Audio - 2" DML Exciter - BMT25-4

Dayton Audio - 2" DML Exciter - BMT25-4

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Description

The DML25-4 2" full-range transducer from Dayton Audio produces an amazing amount of quality sound on and off-axis while maintaining a small form factor. Designed to behave like a conventional pistonic driver at lower frequencies and a DML (distributed mode loudspeaker) at higher frequencies, this driver's unique shape lends itself to modern audio applications, such as speaker bars, docking stations, and satellite speakers, where sound is to be heard without the source being seen.

Features

  • Unique, square-shaped from for tight driver-to-driver placement.
  • Extended frequency response up to 15,000 Hz due to low a inductance motor.
  • Wide off-axis dispersion for placement flexibility.
  • Perfect for modern audio applications such as speaker bars and line arrays.

Specifications

General

Driver type Exciter
Nominal size 2"
Nominal impedance 4Ω
Series BMT
Power handling (RMS) 20 W
Sensitivity 82.1 dB
Frequency range 150 – 15,000 Hz

Thiele/Small parameters

Resonant frequency (Fs) 212 Hz
DC resistance (Re) 4.3 Ω
Voice coil inductance (Le) 0.09 mH
Mechanical Q (Qms) 3.83
Electrical Q (Qes) 1.5
Total Q (Qts) 1.1
Equivalent volume (Vas) 0.005 L
Compliance (Cms) 0.15 mm/N
Moving mass (Mms) 3.7 g
Mechanical resistance (Rms) 1.287 kg/s
Force factor (Bl) 3.86 T·m
Effective piston area (Sd) 4.64 cm²
Linear excursion (Xmax, one-way) 1.5 mm
Displacement volume (Vd) 0.696 cm³
Efficiency bandwidth product (EBP) 141.3

Mounting

Cutout diameter 59.5 mm
Mounting depth (estimate) ≈ 18.6 mm
Voice coil diameter 25 mm
Dimensions 67 × 67 mm
Cutout 59.5 × 59.5 mm
  • Xmax is quoted one-way (peak), not peak-to-peak.

Downloads

Some figures here aren't checked against Dayton Audio's datasheet yet. See which