CRAFTED AUDIO, LLCRevision A
BMR46XE
Balanced mode radiator drive unit, 2½ inch
Description
The BMR46XE is a 2½ inch full-range balanced mode radiator. Rather than moving as a piston, the diaphragm is tuned to bend in controlled modes, which holds dispersion wide and even to the top of the band and keeps phase coherent off axis.
Supplied as a bare drive unit for designers building their own enclosure.
Construction
- High-temperature magnet assembly with full magnetic shielding
- Neodymium motor, available in varying grades
- Square frame — small footprint for the radiating area
- Size and flat front make retrofitting straightforward
- Can be weatherized
Acoustic character
- Predictable and even frequency response
- Coherent phase response
- Ultra-wide dispersion — effective in non-ideal locations
- Consistent voicing across the range, so sizes mix freely
Performance
- Impedance
- 4 or 8 Ω
- Power handling
- 28 W RMS
- Sensitivity
- 89.0 dB @ 2.83 V / 1 m
Thiele–Small
- Vas
- 0.208 litre
- Fs
- 184.0 Hz
Physical
- Length
- 68 mm (2.68 in)
- Width
- 68 mm (2.68 in)
- Depth
- 34.6 mm (1.36 in)
- Mass
- 194 g (6.8 oz)
Mounting and connection
- Baffle cut-out
- Ø61 mm (2.40 in)
- Terminal, +
- Blade 2.9 × 0.32 mm — .110 series
- Terminal, −
- Blade 5.2 × 0.5 mm — .205 series
Impedance is specified at order. State 4 Ω or 8 Ω on the purchase order; the two share the same frame, cut-out and depth.
Warranty — one year from date of shipment against defects in materials and workmanship. Remedy limited to repair or replacement at Crafted's option. Full terms at craftedav.com/warranty.
Balanced mode radiator technology is licensed from Tectonic. Product names of other manufacturers are used only to identify the parts described.