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SPECIFICATIONS
Model/Part Number XTRPRO124 XTRPRO152 XTRPRO154
Thiele/Small Parameters
Fs (free-air resonance, Hz) 32.3 23.4 28.7
Vas (equivalent compliance, cu. ft.) 1.256 3.464 3.207
Vas (equivalent compliance, liters) 35.590 98.130 90.860
Qms (Q, mechanical) 5.89 5.49 5.93
Qes (Q, electrical) 0.66 0.67 0.84
Qts (total driver Q) 0.59 0.61 0.73
Re (DC resistance, ohms) 7.1 4.2 7.2
Z (nominal impedance, ohms) 8 4 8
Le (inductance, mh) 2.82 1.96 3.05
Efficiency (1W @ 1M, dB) 84.4 86.3 85.9
Efficiency (2.86 V @ 1M, dB) 85.1 89.2 86.9
Xmax (one way linear excursion, in.) 0.680 0.680 0.680
Xmax (one way linear excursion, mm) 17.25 17.25 17.25
Pe (continuous power handling, watts) 500 500 500
Peak power handling (music, watts) * 1000 1000 1000
Mms (total moving mass, grams) 214.58 405.83 290.58
Cms (mechanical compliance, mm/N) 0.113 0.114 0.106
Bl (motor strength, Tesla-M) 21.62 16.57 21.18
Sd (effective radiating area, sq. cm.) 471.435 779.311 779.311
Sd (effective radiating area, sq. m.) 0.047 0.078 0.078
Sd (effective radiating area, sq. in.) 73.100 120.839 120.839
Frequency range (Hz) 32.3-500 23.4-500 28.7-500
Energy Bandwidth Product (EBP) ** 49 35 34
Driver Physical Dimension
Speaker Displacement (cu ft) 0.091 0.143 0.143
Mounting hole diameter (inches/mm) 10.91/277 13.85/352 13.85/352
Mounting depth (inches/mm) 6.46/164 7.48/190 7.48/190
Magnet Weight (Oz) 96.00 96.00 96.00
Basket diameter (inches/mm) 12.28/312 15.27/388 15.27/388
Recommended Enclosures
Typical sealed enclosure (cu. ft.) 1.50 2.00 2.00
Vented enclosure (cu. ft.) *** 1.50 3.00 3.00
Port tuning frequency (Hz) 40.00 36.00 36.00
Port diameter (inside, inches) 4.00 4.00 4.00
Port square equivalent (inches) 3.545 x 3.545 3.545 x 3.545 3.545 x 3.545
Port length (inches) 11.26 5.42 5.42
Specifi cations are subject to change without notice