The all–new CHR–70 has one of the
largest stable excursions in its class, a high total Q and a
resonance of 70Hz. It is capable of generating authentic musical
pleasure in a wide selection of enclosure designs for custom–build
projects. OEM, commercial and media applications can also take
advantage of CHR-70's durability, excellent performance and styling.
Features
The CHR-70 shares the custom build
heritage of Markaudio's high-end Alpair driver family. The CHR-70's
cone and cap employ all-new profiles on a new aviation grade
aluminium alloy. Used together with Markaudio's coating technology,
the CHR-70 delivers one of the best overall performances in its
class.
Colours
The CHR-70 has clean styling and a
choice of either cool-grey or rich-gold colours. The blend of style
and colour choices with class-leading performance and professional
design makes the CHR-70 is an excellent lower-cost, high-value audio
driver.
CHR-70 Chassis
The chassis (frame) is a new one–piece
injection moulded unit employing a double polymer mix to deliver the
required rigidity without the ringing interference frequencies
generated by some pressed metal and die–cast frames.
Performance
Very wide frequency range.
Large stable Xmax.
Excellent off-axis performance.
100% custom designed and made.
Available in middle gold and grey
colours.
What's New?
Multiform Cones and Caps
Metal cones are traditionally made by
spinning the metal sheet as the material is pushed on to a former by
hand. This can cause unwanted variations in the cone surface. A new 7
stage CNC controlled production process now manages the cutting,
forming and shape adjustment for the new multiform CHR70 cones and
caps. The driver has a tighter fit of cap to cone and improved
smoothness of the it's contours.
Revised Spider
A reshaped spider improves LF
oscillation and lowers the Fo. The main benefit of the improved
spider is in the production tolerance. The old spider was made to a
stiffness rating of 1.3/50g @ ±1.5, which was already better than
most commercial drivers. Now they are nade to 1.4/50g @ ±1.2. All of
our spiders can now be much more closely matched. Tests show spiders
now being within ±3Hz Fo of each other.
Easy Installation
The CHR-70 is supplied with high
quality hex drive M4 size black, powder coated wood screws and a 2mm
PVA cabinet seal for easy installation.
Mounting Holes
Larger mounting holes (now 4.1mm) are
suitable for M4 wood screws. The CHR70 are now supplied with black
powder-coated M4 Hex wood screws. Once you’ve made the driver
cut-out in your cabinet, offer up the driver and use a 4mm drill bit
in each hole to mark the centre only. Having marked the drill point,
remove the driver and drill with a 2.8mm wood bit for a perfect fit.
The supplied seals now have an increased thickness of 2mm.
This product was added to our catalog on Sunday 25 July, 2010.
