The sales service was excellent, the product arrived quickly, intact and well packaged. As for the speakers... I have yet to test them thoroughly but they seem to work very well.
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Full-range speaker Aluminium 8 Ohm Ø 6.3cm
With its low distortion motor mounted on a Neodymium magnet, its high excursion design and its lightweight, solid aluminum diaphragm construction, the ND65-8 wideband speaker has everything you need to easily integrate into your very compact speaker construction/repair projects.
Its minimal diameter (64mm in total) as well as its optimized depth (48mm) allow it to be integrated in projects requiring good performances while remaining very little greedy in space. The loudspeaker also has an extremely low weight (181g). This model is therefore ideal for making simple speakers (a single loudspeaker) and for building nomadic systems with a very wide frequency response.
Specifications | |
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Speaker type | Full-range |
Nominal diameter | 6.3cm (2.5") |
Power | RMS : 15W Max : 30W |
Impedance | 8 Ohm |
Frequency response | 80Hz - 20000Hz |
Sensitivity | 80.8dB 2.83V/1m |
Voice coil diameter | 1.9cm (0.75") |
Measurements | |
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Resonant frequency (Fs) | 77.4Hz |
DC resistance (Re) | 7.4 Ohm |
Voice coil inductance (Le) | 1.04mH |
Mechanical Q (Qms) | 4.01 |
Electromagnetic Q (Qes) | 0.46 |
Total Q (Qts) | 0.41 |
Compliance equivalent volume (Vas) | 0.02ft.³ |
Mechanical compliance of suspension (Cms) | 1.68mm/N |
BL Product (BL) | 4.47Tm |
Diaphragm mass inc. airload (Mms) | 2.5g |
Maximum linear excursion (Xmax) | 3.5mm |
Surface area of cone (Sd) | 15.6cm² |
Materials | |
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Cone material | Aluminium |
Surround material | Rubber |
Voice coil former | Kapton / Polyimide |
Magnet material | Neodymium |
Mounting informations | |
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Overall outside diameter | 6.35cm (2.5") |
Baffle cutout diameter | 5.21m (2.05") |
Depth | 5.08cm (2") |
Number of mounting holes | 4 |
Optimum cabinet size (determined using BassBox 6 Pro) | |
---|---|
Sealed volume | 0.02ft.³ |
Sealed F3 | 111Hz |
Vented volume | 0.05ft.³ |
Vented F3 | 55Hz |
Speaker Power (W RMS) | 15.0 |
Speaker Type | Full range |
Impedance (Ω) | 8 |
Loudspeaker diameter (mm) | 63.0 |
Diaphragm type | Aluminium |
Efficiency / Sensitivity (dB) | 81.0 |
Max Linear Excursion (Xmax) (mm) | 3.5 |
Lowest frequency (Hz) | 80 |
Highest frequency (Hz) | 20000 |
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Enrico Z.