TC Sounds LMS-R 12 User Manual

LMS-R 12”

(Specifications Manual)

LMS-R 12”

Low Frequency Driver

Thiele Small & Driver Parameters

Parameter 12" LMS-R Description

Qts 0.43 Total Q

Qes 0.46 Electrical Q

Qms 6.7 Mechanical Q

Fs 28 Hertz, Free Air Resonance

Res 3.96 Ohms, DC resistance

Ls 4.7 H, series inductance

Lp 7.7 H, lossy series inductance

Rp 5.1 Ohms, loss across Lp

Dia 250 m meters, effective

Vas 39 liters, air volume equivalent

mms 280 grams, effective mass

cms 115 um/N, compliance

bl 20.5 T*m, motor strength

SplSens 84.5 dBSPL max @1W absorbed

Parameter 12" LMS-R Description

Geometric Stroke 24.1 Millimeters, (voice coil - gap) / 2

70% BL 29.4 Millimeters, BL is 0.7 original value (one way)

Xmech 39.4 Mechanical displacement limit (one way)

Long Term Power 1000 Watts

Program Power 4000 Watts, short term peak power limit

*Impedance and TS parameters measured with the coil in series.
*For full system alignment and enclosure recommendations, please visit our website: www.tcsounds.com