amt   magnetostat   Woofer   no longer sold  

Audiopur

Audiopur delivers planar tweeters and air motion transformers with excellent price to performance ratio.

To our kits with Audiopur loudspeakers.
 


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Audiopur AMT9M       order no. ap-amt90ti       EUR 55,00 excl. VAT: € 46.22 / $ 55.00
air motion transformer. The magnet system is based on Neodymium technology. The speaker has a 4 mm solid metal front plate.
  • power handling (continuous/programme) = 15 W
  • frequency range = 2500-22000 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 94 dB (2,83V; 1m)
  • mounting diameter d = 65 mm
  • overall diameter d = 89,5 mm
  • mounting depth (not countersunk) t = 21 mm
PDF data sheet

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Audiopur AMT13M       order no. ap-amt130ti95       EUR 111,00 excl. VAT: € 93.28 / $ 111.00
air motion transformer. The magnet system is based on Neodymium technology. The speaker has a 5 mm solid metal front plate.
  • power handling (continuous/programme) = 25 W
  • frequency range = 1900-18000 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 96 dB (2,83V; 1m)
  • DC resistance Re = 3,4 Ohm
  • effective piston radiating area Sd = 32,8 cm2
  • mounting diameter d = 114x69 mm
  • overall diameter d = 130x95 mm
  • mounting depth (not countersunk) t = 23 mm
PDF data sheet

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Audiopur MAG8M       order no. ap-mag85ti60       EUR 33,00 excl. VAT: € 27.73 / $ 33.00
ribbon tweeter. The magnet system is based on Neodymium technology. The speaker has a 5 mm solid metal front plate.
  • power handling (continuous/programme) = 15 W
  • frequency range = 3000-18000 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 95 dB (2,83V; 1m)
  • DC resistance Re = 3,4 Ohm
  • effective piston radiating area Sd = 8,1 cm2
  • mounting diameter d = 73x41 mm
  • overall diameter d = 85x60 mm
  • mounting depth (not countersunk) t = 20 mm
PDF data sheet

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Audiopur MAG11M       order no. ap-mag114ti72       EUR 52,00 excl. VAT: € 43.70 / $ 52.00
ribbon tweeter. The magnet system is based on Neodymium technology. The speaker has a 4 mm solid metal front plate.
  • power handling (continuous/programme) = 15 W
  • frequency range = 2800-16000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 100 dB (2,83V; 1m)
  • DC resistance Re = 5,4 Ohm
  • effective piston radiating area Sd = 19,5 cm2
  • mounting diameter d = 92x60 mm
  • overall diameter d = 114x72 mm
  • mounting depth (not countersunk) t = 15 mm
PDF data sheet

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Audiopur MAG17P       order no. ap-mag170ti96       - not available
ribbon tweeter. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 30 W
  • frequency range = 1800-18000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 96 dB (2,83V; 1m)
  • DC resistance Re = 4,7 Ohm
  • effective piston radiating area Sd = 26,5 cm2
  • mounting diameter d = 156x65 mm
  • overall diameter d = 170x96 mm
  • mounting depth (not countersunk) t = 20 mm
PDF data sheet

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Audiopur MAG20M       order no. ap-mag200ti89       EUR 54,00 excl. VAT: € 45.38 / $ 54.00
ribbon tweeter. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 30 W
  • frequency range = 200-18000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 94 dB (2,83V; 1m)
  • DC resistance Re = 5,9 Ohm
  • effective piston radiating area Sd = 59,5 cm2
  • mounting diameter d = 174x65 mm
  • overall diameter d = 200x89 mm
  • mounting depth (not countersunk) t = 1 mm
PDF data sheet

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Audiopur MAG100M       order no. ap-1016ti110       EUR 828,00 excl. VAT: € 695.80 / $ 828.00
ribbon tweeter. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 50 W
  • frequency range = 180-18000 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 85 dB (2,83V; 1m)
  • DC resistance Re = 3,3 Ohm
  • effective piston radiating area Sd = 280 cm2
  • mounting diameter d = 1016x88 mm
  • overall diameter d = 1016x110 mm
  • mounting depth (not countersunk) t = 12 mm
PDF data sheet

 

Woofer


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recommended cabinet 1:
closed cabinet with 8,1 L volume
from 91/57 Hz (-3dB/-8dB)
 
recommended cabinet 2:
23 L volume bass reflex cabinet
with HP70 reflex tube, 17 cm long.
from 51/39 Hz (-3dB/-8dB).

Audiopur W254       order no. nu-w254       EUR 59,00 excl. VAT: € 49.58 / $ 59.00
26 cm bass driver with high quality cone.
  • power handling (continuous/programme) = 100/200 W
  • frequency range = 30-1500 Hz
  • resonance frequency fs = 33 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 88 dB (2,83V; 1m)
  • DC resistance Re = 3,2 Ohm
  • force factor BL = 11,47 N/A
  • voice coil inductance L = 1,4 mH
  • effective piston radiating area Sd = 346 cm2
  • effective mechanical mass incl. air load mms = 53 g
  • equivalent volume of compliance Vas = 63,4 l
  • total Q factor Qts = 0,28 (Qms=3,3, Qes=0,31)
  • maximum peak linear excursion vibration xlin = +/- 6 mm
  • mounting diameter d = 232 mm
  • overall diameter d = 282 mm
  • mounting depth (not countersunk) t = 118 mm
PDF data sheet

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Audiopur MAG17M       order no. ap-mag170ti96mf       - not available
ribbon tweeter. The magnet system is based on Neodymium technology. The speaker has a 6 mm solid metal front plate.
  • power handling (continuous/programme) = 30 W
  • frequency range = 1800-22000 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 95 dB (2,83V; 1m)
  • DC resistance Re = 4,7 Ohm
  • effective piston radiating area Sd = 26,5 cm2
  • mounting diameter d = 156x65 mm
  • overall diameter d = 170x96 mm
  • mounting depth (not countersunk) t = 20 mm
PDF data sheet
amt   magnetostat   Woofer   no longer sold  
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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© Copyright 2012 Iris Strassacker; All rights reserved. - errors and omissions excepted