The HiVi F8 woofer utilizes a Kevlar and paper composite cone that has lower weight, higher rigidity, and an improved damping factor. The back of the cone is hand coated with damping compound to further maximize performance stability and control of resonances. Midrange clarity and tonal balance are remarkable. The F8 has been optimized for dynamic low bass reproduction in compact or medium vented enclosures. The driver employs a vented Kapton voice coil former and flat spider to avoid air compression and ensure maximum power handling. A massive aluminum die-cast basket has been developed to minimize structural resonances, and a shielded magnet structure enables the F8 to be incorporated easily into audio/video speaker applications. The F8 has an exceptionally smooth frequency response (within +/-1.7 dB tolerance in 70-3,000 Hz range, measured on an IEC baffle), which helps make the driver a perfect choice for high resolution 2-way or 3-way systems. Recommended crossover frequency for a two-way system design is 1.8-2.2 kHz.
Product Details | |
|---|---|
| Brand | HiVi |
| Model | F8 |
| Part Number | 297-445 |
| UPC | 844632021312 |
| Unit of Measure | Each |
| Weight | 7.53 |
Product Specifications | |
|---|---|
| Nominal Diameter | 8" |
| Power Handling (RMS) | 60 Watts |
| Power Handling (MAX) | 120 Watts |
| Impedance | 8Ω |
| Frequency Response | 37 to 3,000Hz |
| Sensitivity | 88dB 2.83V/1m |
| Voice Coil Diameter | 1.375" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 37Hz |
| DC Resistance (Re) | 6.5Ω |
| Mechanical Q (Qms) | 4.71 |
| Electromagnetic Q (Qes) | 0.44 |
| Total Q (Qts) | 0.4 |
| Compliance Equivalent Volume (Vas) | 1.37ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.59mm/N |
| Diaphragm Mass Inc. Airload (Mms) | 30.5g |
| Maximum Linear Excursion (Xmax) | 5mm |
| Surface Area of Cone (Sd) | 214cm² |
Materials of Construction | |
|---|---|
| Cone Material | Paper / Kevlar |
| Surround Material | Rubber |
| Voice Coil Former | Kapton® / Polyimide |
| Basket / Frame Material | Cast Aluminum |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 9.44" |
| Baffle Cutout Diameter | 7.156" |
| Depth | 4.55" |
| # Mounting Holes | 12 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 0.63ft³ |
| Sealed F3 | 53.4Hz |
| Vented Volume | 1.2ft³ |
| Vented F3 | 38.3Hz |
