Markaudio CHR-70 A Generation 3 champangne

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recommended cabinet 1:
closed cabinet with 3,7 L volume
from 96/61 Hz (-3dB/-8dB)
 
recommended cabinet 2:
15 L volume bass reflex cabinet
with HP50 reflex tube, 11 cm long.
from 43/37 Hz (-3dB/-8dB).

Markaudio CHR-70 A Generation 3 champangne       order no. ma-chr70a-g3-cham       EUR 69,90 excl. VAT: € 58.74 / $ 69.31
11 cm full range driver with metal cone. A pair of speakers is delivered (the price is for one pair). The rubber surround is invers. The speaker has soldering lugs / faston terminals.
  • power handling (continuous/programme) = 20 W
  • frequency range = 60-30000 Hz
  • resonance frequency fs = 65,4 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 85,4 dB (2,83V; 1m)
  • DC resistance Re = 7,2 Ohm
  • force factor BL = 4,2 N/A
  • voice coil inductance L = 0,032 mH
  • effective piston radiating area Sd = 50,2 cm2
  • effective mechanical mass incl. air load mms = 4,1 g
  • equivalent volume of compliance Vas = 5,17 l
  • total Q factor Qts = 0,55 (Qms=2,66, Qes=0,69)
  • voice coil diameter = 20 mm
  • maximum peak linear excursion vibration xlin = +/- 4,3 mm
  • mounting diameter d = 102 mm
  • overall diameter d = 124 mm
  • mounting depth (not countersunk) t = 56 mm
PDF data sheet
The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.

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