MarkAudio CHR-70 Silver (4 inch driver) – Pair
Product Description:
The CHR-70A (Gen. 3) is now up-dated 4 times since the first model was launched 4 years ago. Its usable frequency range is class leading. Depending on enclosure design, its capable of operation from 40Hz to 25-kHz.
2 developments further improve the design. An excursion limiter (arrestor) has now been fitted inside the motor sub-assembly, significantly reducing the risk of over-driving damage. The CHR is now capable of being driven at higher loads making it suitable for more audio applications. Colour coded custom locking connectors are now included in this design. Both these features are illustrated in the following page.
The driver has medium efficiency of 85.5dB at 8 Ohms making it easy to use on nearly all small to medium power amplifiers.
Many technical improvements has been done.Many technical improvements has been done.
- Many technical improvements has been done.
- Improved stiffer frame.
- New cap design with new improved fitting method.
- New Japanese deigned coil.
- New spider for improved bass.
- 2 colour choice (champagne gold and and brush look metal cones)
- Built-in overload protection (arrestor in motor sub-assembly)
- Dedicated custom colour coded connectors
The new CHR-70 Gen. 3 is an excellent high-end and multi-purpose driver. Its also suitable for many computer, Home Theatre, TV, and commercial A/V applications.
Features:
- 4in silver or champagne coloured magnesium alloy cone
- Operating range to 25KHz
- Low-profile multiform cone –broad directivity pattern
- Long-stroke suspension with arrestor
- Self-damping polymer basket
Specifications:
REVC | 7.2 Ohm |
Fo | 65.40 Hz |
Sd | 5.02 K mm/2 |
Vas | 5.17 Ltrs |
Cms | 1.44 uM/N |
Mmd | 3.90 g |
Mms | 4.10 g |
BL | 4.20 T*M |
Qms | 2.66 |
Qes | 0.69 |
Qts | 0.55 |
Levc | 32.44 uH |
No | 0.002 |
Spl | 85.4 dB |
Pwr | 20w Nom |
X max | 4.3-mm 1 way |
Coil Dia | 20-mm |
Main tolerance | +/- 2.5 hz |
Enclosure Plans:
Classic Golden Ratio resistively vented standmount
CHR70.3 Twin Driver Ambiance Channel
Fenlon 70CHR simple vented box
CHR70.3 Compact Series Multichamber
Note: Price is for a Pair
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