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JL AUDIO 12W1V3-4 žemų dažnių garsiakalbis
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Automobilinis žemų dažnių garsiakalbis.
Dydis: 12" (30cm)
Galingumas: 300W RMS
Varža: 4 ohm
12W1v3-4
299,00 €
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| Continuous Power Handling (RMS) | 300 W |
| Recommended Amplifier Power (RMS) | 75 - 300 W |
| Nominal Impedance (Znom) | 4 Ω |
Physical Specifications
| Nominal Diameter | 12.0 in / 300 mm |
| Overall Diameter (A) | 12.5 in / 318 mm |
| Mounting Hole Diameter (B) | 11.0625 in / 281 mm |
| Bolt Hole Circle Diameter (C) | 11.7 in / 297 mm |
| Motor Outer Diameter (D) | 5.25 in / 133 mm |
| Mounting Depth (E) | 5.41 in / 137 mm |
| Driver Displacement | 0.052 cu ft / 1.47 L |
| Net Weight | 12.2 lb / 5.5 kg |
Parameters
| Free Air Resonance (Fs) | 26.21 Hz |
| Electrical “Q” (Qes) | 0.535 |
| Mechanical “Q” (Qms) | 8.2 |
| Total Speaker “Q” (Qts) | 0.502 |
| Equivalent Compliance (Vas) | 2.706 cu ft / 76.63 L |
| One-Way Linear Excursion (Xmax)* | 0.45 in / 11 mm |
| Reference Efficiency (no) | 0.25% |
| Efficiency (1 W / 1 m)** | 86.1 dB SPL |
| Effective Piston Area (Sd) | 81.426 sq in / 0.0525 sq m |
| DC Resistance (Re) | 3.915 Ω |
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.
** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.
Sealed Enclosure Specifications
| Wall Thickness | 0.75 in / 19 mm |
| Front Baffle Thickness | 0.75 in / 19 mm |
| Volume (net int.) | 1.10 cu ft / 31.5 L |
| External Width (W) | 16 in / 406 mm |
| External Height (H) | 16 in / 406 mm |
| External Depth (D) | 11 in / 279 mm |
| F3 | 39.63 Hz |
| Fc | 48.75 Hz |
| Qtc | 0.9338 |
Enclosure Notes
* The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.
* All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.
* When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.
* We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
* All specifications are subject to change without notice.
Ported Enclosure Specifications
| Wall Thickness | 0.75 in / 19 mm |
| Front Baffle Thickness | 0.75 in / 19 mm |
| Volume (net int.) | 1.6 cu ft / 45.3 L |
| External Width (W) | 25 in / 635 mm |
| External Height (H) | 15.5 in / 394 mm |
| External Depth (D) | 13 in / 330 mm |
| Internal Slot Port Width (SW) | 1.5 in / 38 mm |
| Internal Slot Port Height (SH) | 14 in / 356 mm |
| Internal Slot Port Length (SL) | 30.75 in / 781 mm |
| Port Extension Length (EL) | 17 in / 432 mm |
| Tuning Frequency (Fb) | 31.79 Hz |
| F3 | 31.41 Hz |
12W1v3-4
