- NDK 6-1.5 MID-RANGE
Key Features
240 Watt Max Power
38 mm (1.50 in) voice coil, copper wire
Interleaved sandwich voice coil
Weather protected membrane for outdoor use
Ventilated voice coil and magnet circuit for improved heat dissipation
Demodulating ring for lower distortion
Air gap height = mm 6 Winding height= mm 9
 General Specifications
|
| Nominal Diameter | 6.5 in - 160 mm | |
|---|---|---|
| Nominal Impendance | 8 Ohm | |
| Nominal Rdc | 5.4 Ohm | |
| Power handling (AES) (*) | 120 Watt | |
| Max Power | 240 Watt | |
| Minimum Impedance | 6.98 Ohm | |
| Frequency Range | 140 ÷ 4000Hz | |
| Voice Coil Diameter | 1.5 in - 38 mm | |
| S.P.L. (1w, 1m) | 98 dB | |
| Nominal Fs | 150 Hz | |
| Flux Density | 1.25 T | |
| Sinusoidal Test Voltage | 6 V |
| Life Test (*) | ||
| Box Volume | 5 liters | |
|---|---|---|
| Input Signal | Pink noise | |
| Band Pass Filter | 150 - 4000Hz, 12 dB/oct | |
| Test duration | 2 hours | |
Diagram
| Frequency Response | Reflex box 5 liters | |
|---|---|---|
| Impendance | (Iac=10m A) |
Mechanical & Shipping Informations
| Net weight | 1.4 Kg | |
|---|---|---|
| Overall Diameter | 186 mm | |
| Overall Depth | 83 mm | |
| Baffle Cut Diameter | 146 mm | |
| Mounting holes number | 4 | |
| Mounting holes diameter | 7 x 5 mm | |
| Mounting bolt diameter | 170 mm |
Materials
| Frame Material | Aluminium | |
|---|---|---|
| Voice Coil Former Material | Kapton | |
| Voice Coil Wire | Copper | |
| Cone Material | Doped paper | |
| Cone Shape | Exponential | |
| Surround Material | Doped foam | |
| Surround Shape | Flat | |
| Suspension Material | Doped Nomex fabric | |
| Magnet Type | Neodymium | |
| Magnet Weight | 170 g |
Thiele-small parameters
| Qms | 9.32 | |
|---|---|---|
| Qes | 0.42 | |
| Qts | 0.41 | |
| Fs | 147.40 Hz | |
| Re | 5.24 Ohm | |
| Mms | 11.58 g | |
| Cms | 0.10 mm/N | |
| Bl | 11.52 T*m | |
| Sd | 149.57 cm2 | |
| Vas | 3.16 liter | |
| u0 | 2.30 % | |
| XMax | 3 mm | |
| Le | 0.13 mH | |
| Rms | 1.15 Kg/s | |
| Efficiency Bandwidth | 348.10 |
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