• Markaudio CHP-70-P  4" Full Range Paper Woofer Natural Matched Pair
  • Markaudio CHP-70-P  4" Full Range Paper Woofer Natural Matched Pair

Markaudio CHP-70-P 4" Full Range Paper Woofer Natural Matched Pair

The MarkAudio CHP-70A driver is designed to make a semi-vintage classic sound similar to the smaller full range driver designs from the 1950ʼs. Its middle-high range output has been made to "roll-off" from 7-kHz up.
Article number:
CHP-70-N
Delivery time:
Depends per country, see shipping page
Availability:
In stock (4)
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The MarkAudio CHP-70A driver is designed to make a semi-vintage classic sound similar to the smaller full range driver designs from the 1950ʼs. Its middle-high range output has been made to "roll-off" from 7-kHz up.

 

Highlights

  • Synthetic rubber surround
  • Nomex spider
  • Improved voice coil former
  • Sold as matched pairs

 

Product Details

Markaudio CHP-70-P 4" Full Range Paper Woofer Natural Matched Pair

 

This updated (Gen. 2) CHP-70A driver is designed to make a semi-vintage classic sound similar to the smaller full range driver designs from the 1950ʼs. Its middle-high range output has been made to "roll-off" from 7-kHz up. This helps to keep the high range sounding smooth and warm. This driver makes the singers voice sound very natural, a little warm, pleasing for many hours of listening.

 

The CHP-70A Gen. 2 will assist in the control of sharp or hard sounding compressed music (digital). This CHP delivers a tone that appeals to classic music enthusiasts using smaller amplifiers. The off-axis and sound-spread of the CHP-70 is excellent. This driver can fill a room environment with an "easy listening" experience, especially for human voice. The bass response from the CHP-70 Gen. 2 in a properly tuned box is excellent for this smaller sized driver. Typically, in a Bass-Reflex or Vented box, lower responses close to 40Hz can be obtained.

 

Several technical improvements have been done, such as: 1 - Improved stiffer frame. 2 - New cap design with new improved fitting method. 3 - New Japanese designed coil. 4 - New spider for improved bass.

 

The CHP-70A Gen. 2 is an excellent "classic" and "natural" sound driver.

The CHP-70A Excursion Arrestor will make a sound when exceeding the driver’s excursion limits.

 

PRODUCT SPECIFICATIONS

Nominal Diameter

4"

Power Handling (RMS)

20 Watts

Power Handling (max)

- Watts

Impedance

8 ohms

Frequency Response

- to - Hz

Sensitivity

86.5 dB 2.83V/1m

Voice Coil Diameter

0.78"

 

THIELE-SMALL PARAMETERS

Resonant Frequency (Fs)

50.2 Hz

DC Resistance (Re)

7.2 ohms

Mechanical Q (Qms)

2.3

Electromagnetic Q (Qes)

0.76

Total Q (Qts)

0.52

Compliance Equivalent Volume (Vas)

0.16 ft.³

Mechanical Compliance of Suspension (Cms)

1.31 mm/N

BL Product (BL)

4.2 Tm

Diaphragm Mass Inc. Airload (Mms)

3.7g

Maximum Linear Excursion (Xmax)

4 mm

Surface Area of Cone (Sd)

50.2 cm²

 

MOUNTING INFORMATION

Overall Outside Diameter

-"

Baffle Cutout Diameter

-"

Depth

-"

# Mounting Holes

-

 

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