Product Details

Description

The LEGEND BP 122 12" Bass Guitar Speaker is an Eminence bass guitar speaker for musicians, builders, and repair technicians seeking a purposeful replacement or new-cabinet driver. A 12" bass guitar driver that delivers warm, rich tone and deep bass. A big brother to the popular 10" Legend BP102, this 250 watt driver is at home in small sealed enclosures, and also works well in Pro Audio and Home Hi-Fi applications. Key specifications include 250 W power handling, 8 Ω nominal impedance, 35 Hz - 2.3 kHz usable frequency range, 94.1 dB sensitivity.

Its construction features a ferrite magnet, a paper cone, a 2", 50 mm voice coil, supporting reliable performance in compatible cabinets and amplifiers. Use it for amplifier upgrades, custom cabinet projects, tonal experimentation, or restoring a working rig with a speaker selected for its musical response. Before installation, confirm the amplifier's impedance requirement, available mounting depth, cabinet cutout, and power compatibility. For best results, choose an enclosure and amplifier pairing appropriate for the published specifications and the desired playing style.

Specifications
Nominal basket diameter
12", 305mm
Nominal impedance
8 Ω
Power rating program power
500 W
Power rating watts
250 W
Resonance
35 Hz
Usable frequency range
35 Hz - 2.3 kHz
Sensitivity
94.1 dB
Gap height
0.3125", 7.9 mm
Voice coil diameter
2", 50 mm
Thiele & Small Parameters
Resonant frequency fs
35 Hz
Dc resistance re
5.66
Coil inductance le
0.84
Mechanical q qms
9.26
Electromagnetic q qes
0.57
Total q qts
0.54
Compliance equivalent volume vas
157.4 liters, 5.56 cu.ft.
Peak diaphragm displacement volume vd
330.1 cc
Mechanical compliance of suspension cms
0.4 mm/N
Bl product bl
10.55
Diaphragm mass inc airload mms
50
Efficiency bandwidth product ebp
62
Maximum linear excursion xmax
6.2 mm
Surface area of cone sd
532.4 cm²
Mounting Information
Recommended enclosure volume sealed
Acceptable
Recommended enclosure volume vented
Acceptable
Driver volume displaced
0.071 cu.ft. / 2 liters
Overall diameter
12.26", 311.4 mm
Baffle hole diameter
11.08", 281.4 mm
Front sealing gasket
Yes
Rear sealing gasket
Yes
Mounting holes diameter
0.25", 6.4mm
Mounting holes b c d
11.71", 297.4mm
Depth
5.33", 135.3 mm
Net weight
9.0 lbs, 4.08 kg
Shipping weight
9.0 lbs, 4.08 kgs
Materials of Construction
Coil construction
Edgewound copper
Voice coil former
Polyimide
Magnet material
Ferrite
Basket material
Pressed steel
Cone composition
Paper
Surround
Cloth
Dust cap composition
Solid composition felt