Volt BM2500.4 Bass-mid Unit

10" Paper Cone Mid/Bass

The BM2500.4 uses a massive magnet with a symmetrical field, extended pole piece and long voice coil for maximum linearlty. The cone, linen surround and dome are critically matched and doped to ensure very low midband colouration. The result is an analytical sound quality with a stunning dynamic range.

The BM2500.4 is designed for use in 2-way nearfield monitors where accuracy and realism are essential.

Technical Data:

Frame size:    261 x 261mm

Sensitivity (2.83v/1m):   92dB

Nominal impedance:   8 ohm

Frequency range:   25Hz-2.5kHz

Free air resonance:   32Hz

DC resistance (Re):   5.9 ohm

Voice coil inductance (Le):   0.9mH

Effective piston area (Sd):   299cm²

Moving Mass (Md):   48g

Force factor (BL):   15.5Tm

Excursion (lin-max):   25mm

Qa:   1.9

Qe:   0.24

Qt:   0.21

Vas:   73L

Voice coil diameter:   75mm

Nominal power handling:   200w

Physical Sizes:

Frame size:   261 x 261mm

Overall depth (front of frame to rear of magnet):   121mm

Flange thickness:   12mm

Fixing holes:  4 x 5.5mm diameter on 268mm PCD

Cutout diameter:   253mm

Price per single unit excluding VAT