The IB15 is quite simply the ultimate infinite baffle driver. The IB15 was designed from the ground up to be the most accurate, lowest distortion infinite baffle driver ever made. The high Xmax means these drivers can move some serious amounts of air. The extremely low Fs along with the .707 Qts means there is the greatest possible bass efficiency and lowest possible F3 point without added bass boost needed.

The full copper shorting ring on the pole solves two of the greatest issues causing distortion in loudspeakers that remain not addressed in 99% of drivers available. It both lowers inductance and fixes the flux permanently in the gap. Inductance on the IB15 is as low as many midrange drivers, allowing them to play up high if called upon.

Quite simply, no other infinite baffle driver can match the high levels of clean,low distortion output of the IB15.

Explore the Lambda 001 Motor design

IB15 8ohm
Fs: 16Hz
Qms: 6.8
Vas: 439L
Cms: .45mm/N
Mms: 220g
Rms: 3.239kg/s
Xmax: 18.5mm
Xmech: 25mm
Sd: 830sqcm
Vd: 3.07L (p-p)
Qes: .78
Re: 5.5ohm
Le: .33mH
Bl: 12.49Tm
Pe: 500W
Qts: .7
1WSPL: 86dB
2.83V: 87.3dB

IB15 4ohm
Fs: 16Hz
Qms: 6.8
Vas: 439L
Cms: .45mm/N
Mms: 220g
Rms: 3.239kg/s
Xmax: 18.5mm
Xmech: 25mm
Sd: 830sqcm
Vd: 3.07L (p-p)
Qes: .78
Re: 2.7ohm
Le: .33mH
Bl: 8.75Tm
Pe: 500W
Qts: .7
1WSPL: 86dB
2.83V: 90.35dB


IB15 Highlights:
Hand coated and sealed paper cone and foam surround
Copper Faraday Ring fixes flux permanently in gap and lowers inductance
Low 16Hz Fs and .7 Qts give maximum bass efficiency
Special discounts in four piece quantity