SPECIFICATIONS
Model/Part Number | XTR124 | XTR152 | XTR154 |
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Thiele/Small Parameters |
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Fs | 23.7 | 21.4 | 23.0 |
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Vas (equivalent compliance, cu. ft.) | 2.606 | 6.141 | 5.618 |
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Vas (equivalent compliance, liters) | 73.820 | 173.960 | 159.140 |
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Qms (Q, mechanical) | 6.15 | 6.93 | 6.53 |
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Qes (Q, electrical) | 0.53 | 0.61 | 0.73 |
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Qts (total driver Q) | 0.49 | 0.56 | 0.66 |
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Re (DC resistance, ohms) | 7.9 | 4.2 | 7.9 |
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Z (nominal impedance, ohms) | 8 | 4 | 4 |
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Le (inductance, mh) | 2.87 | 1.70 | 2.55 |
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Efficiency (1W @ 1M, dB) | 84.5 | 86.3 | 86.0 |
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Xmax (one way linear excursion, in.) | 0.476 | 0.487 | 0.476 |
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Xmax (one way linear excursion, mm) | 12.075 | 12.363 | 12.075 |
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Pe (continuous power handling, watts) | 250 | 300 | 300 |
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Peak power handling (music, watts) * | 500 | 600 | 600 |
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Mms (total moving mass, grams) | 162.76 | 272.53 | 259.04 |
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Cms (mechanical compliance, mm/N) | 0.278 | 0.203 | 0.185 |
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Bl (motor strength, | 18.90 | 14.36 | 18.14 |
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Sd (effective radiating area, sq. cm.) | 433.736 | 779.311 | 779.311 |
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Sd (effective radiating area, sq. in.) | 67.255 | 120.839 | 120.839 |
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Frequency range (Hz) | |||
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Energy Bandwidth Product (EBP) ** | 45 | 35 | 31 |
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Driver Physical Dimension |
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Speaker Displacement (cu ft) | 0.077 | 0.143 | 0.143 |
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Speaker Outer Diameter (inches/mm) | 277.00 | 345.00 | 345.00 |
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Mounting hole diameter (inches/mm) | 10.91 | 13.58 | 13.58 |
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Mounting depth (inches/mm) | 5.98/152 | 7.24/184 | 7.24/184 |
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Magnet Weight (Oz) | 64.00 | 64.00 | 64.00 |
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Basket diameter (inches/mm) | 12.24 | 15.12 | 15.12 |
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Recommended Enclosures |
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Typical sealed enclosure (cu. ft.) | 1.50 | 2.00 | 2.00 |
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Vented enclosure (cu. ft.) *** | 1.50 | 3.00 | 3.00 |
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Port tuning frequency (Hz) | 40.00 | 36.00 | 36.00 |
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Port diameter (inside, inches) | 4.00 | 4.00 | 4.00 |
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Port square equivalent (inches) | 3.545 x 3.545 | 3.545 x 3.545 | 3.545 x 3.545 |
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Port length (inches) | 11.26 | 5.42 | 5.42 |
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Specifications are subject to change without notice
© 2008 directed | 15 |
