Transcript
D8G Bass-Midrange
Mechanical Drawing (Magnify)
Bottom View (Magnify)
Impedance (Magnify)
Frequency Response (Magnify)
Top View (Magnify) Part View (Magnify)
D8G Bass-Midrange Nominal Impedance (Z)(Ω) :
8
Resonance Frequency (Fs)(Hz) :
35
Nominal Power 150 Handling (Pnom)(W) : Max Power Handing(Pmax)(W) :
300
Sensitivity (2.83v/1m) 86 (dB) : Weight (M)(Kg) :
3.7
VC Diameter (mm) :
100
DC (Re)(Ω) :
6.5
VC Length (H)(mm) :
23.5
VC Former :
CCAW
VC Frame :
Kapton
Magnet System :
Inside
Magnet Former :
Neodymium
Force Factor (BL) (N/A) :
13.0
Gap Height (He) (mm) :
7.0
Linear Excursion (Xmax)(mm) :
8.3
Suspension Compliance (Cms) (uM/N) :
367.2
Mechanical Q (Qms) : 3.12 Electrical Q (Qes) :
0.48
Total Q (Qts) :
0.41
Moving Mass (Mms) (g) :
55.3
Effective Piston Area (Sd)(m2) :
0.0241
Equivalent Air Volume 30.3 (Vas)(L) : Cabinet Type :
Vented
Recommended Box Volume(Vb)(L) :
30
Tuning Frequency(Fb) 35 (Hz) : -3dBCut-Off Frequency(F3)(Hz) :
35
Break the tradition electroacoustical design principle of Hi-Vi D8G! The Hi-Vi D series loudspeaker of huge successful, Established the leading position that science and technology at the electroacoustical field. After Hi-Vi transferred North America in 1993, Hi-Vi America electroacoustic development center developed the DG series loudspeaker of the new generation subsequently. Light and extremely rigid cone made from Kevlar?paper composite Fatigue resistant foam surround Selfenclosed, vented Neodymium magnet system Undercut magnetic poles Long-throw 100 mm voice coil with black anodized aluminum former Die-cast frame with multiple point mounting Spider with decompressed rear volume The D8G is a design wherein the Neodymium magnet and undercut central pole are placed inside a 100 mm voice coil. A specially shaped, CNC machined steel cup completes the magnetic structure from the outside, creating a shielded magnet system with symmetrical flux density distribution along the gap. Thus, a long-throw voice coil experiences symmetric driving force and a substantial decrease of inductance and back electromotive force modulations. The whole magnet structure is optimized using Finite Element Analysis. This approach results in a radical reduction of the distortion produced by conventional motor systems. The cone is fabricated from a newly developed matrix of Kevlarˇ and paper fibers. It has a shallow, high integrity structure, which is extremely rigid and dynamically stable. The large voice coil diameter allows more uniform cone excitation, thus improving phase and transient characteristics of the driver, resulting in clear and accurate reproduction. The cone is a beautiful light gold color. The vented design, effective heat transfer to the die-cast frame and very large, high temperature rated voice coil provide a dramatic increase in power handling. Multiple point mounting virtually eliminates any structural resonances. The D8G is excellent as a woofer for high power audiophile systems, where maximum bass extension in a compact or medium vented enclosure is needed. This driver will make an outstanding compact subwoofer with its 8.3 mm linear excursion capability.
