Ribbon Tweeter   Full Range  

 

Fountek Ribbon Tweeter, Full Range and Woofer

Fountek is an innovative far east manufacturer of ribbon tweeters. The product quality (even mechanical details like the neat rear damping coat of the front plate), the powerful Neodym magnets, the high efficiency and the flat frequency response convinced us. Therefore, selected pairs of ribbon tweeters with metal front plate (Fountek also supplies common types with plastic front plate) are available under the name Audaphon/Fountek.

The following ribbon tweeters are so-called real ribbons, with built-in transformer, since ribbons of around 0.02 Ohm have a too low resistance to be wired up directly.

There are two different materials for ribbons: 0.009 mm aluminium foil, like the JP ribbons These ribbons show an incredible airiness; they need, however, to be protected carefully against low frequencies, by means of 18 dB crossover and should never be connected directly (without capacitor) to a measuring device.

The next type of ribbon is the Neo range with a stronger ribbon that is roughly 50% heavier and has with a 0.020 mm gauge double the thickness. These could be used in conjunction with 12 dB crossovers.

Particularly impressive is the Neo 5i ribbon, equipped with 4 high power Neodym magnets, totalling a weight of 2.7 kg.


 

Ribbons

Fountek Neo CD 3.0       order no. fo-cd30       EUR 92,00 excl. VAT: € 77.31 / $ 67.82
ribbon tweeter.
  • frequency range = 1400-40000 Hz
  • resonance frequency fs = 400 Hz
  • impedance R = 7 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 7 Ohm
  • effective piston radiating area Sd = 4,8 cm2
  • effective mechanical mass incl. air load mms = 0,018 g
  • mounting diameter d = 90 mm
  • overall diameter d = 110 mm
  • mounting depth (not countersunk) t = 68 mm
PDF data sheet

Fountek Neo CD 2.0       order no. fo-cd20       EUR 114,00 excl. VAT: € 95.80 / $ 84.03
ribbon tweeter.
  • frequency range = 1200-40000 Hz
  • resonance frequency fs = 350 Hz
  • impedance R = 7 Ohm
  • sound pressure level SPL = 92 dB (2,83V; 1m)
  • DC resistance Re = 7 Ohm
  • effective piston radiating area Sd = 9,6 cm2
  • effective mechanical mass incl. air load mms = 0,034 g
  • overall diameter d = 164 x 70,4 mm
  • mounting depth (not countersunk) t = 70 mm
PDF data sheet

Fountek JP 2.0       order no. fo-jp20       EUR 175,00 excl. VAT: € 147.06 / $ 129.00
ribbon tweeter.
  • frequency range = 1700-40000 Hz
  • resonance frequency fs = 370 Hz
  • impedance R = 7 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 7 Ohm
  • effective piston radiating area Sd = 9,6 cm2
  • effective mechanical mass incl. air load mms = 0,025 g
  • overall diameter d = 164 x 70,4 mm
  • mounting depth (not countersunk) t = 70 mm

Fountek Neo Pro 5i       order no. fo-pro5i       EUR 279,00 excl. VAT: € 234.45 / $ 205.66
ribbon tweeter.
  • frequency range = 650-40000 Hz
  • resonance frequency fs = 200 Hz
  • impedance R = 7 Ohm
  • sound pressure level SPL = 96 dB (2,83V; 1m)
  • DC resistance Re = 5,15 Ohm
  • effective piston radiating area Sd = 21,75 cm2
  • effective mechanical mass incl. air load mms = 0,088 g
  • overall diameter d = 190 x 115 mm
  • mounting depth (not countersunk) t = 99 mm
PDF data sheet

open a bigger photo

Fountek NeoCD1.0       order no. fo-cd10       - not available
ribbon tweeter. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 12/25 W
  • frequency range = 2000-40000 Hz
  • impedance R = 5 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 0,02 Ohm
  • effective piston radiating area Sd = 3,04 cm2
  • effective mechanical mass incl. air load mms = 0,10 g
  • mounting depth (not countersunk) t = 70 mm
  • mass m = 0,41 kg
PDF data sheet

open a bigger photo

recommended cabinet 1:
closed cabinet with 0,47 L volume
from 198/125 Hz (-3dB/-8dB)
 
recommended cabinet 2:
1,9 L volume bass reflex cabinet
with HP35 reflex tube, 11 cm long.
from 91/77 Hz (-3dB/-8dB).

Fountek FE85       order no. fo-fe85       - not available
7 cm full range driver with aluminium cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 12 W
  • frequency range = 100-25000 Hz
  • resonance frequency fs = 125 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 85,7 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 3,71 N/A
  • effective piston radiating area Sd = 27 cm2
  • effective mechanical mass incl. air load mms = 2,07 g
  • equivalent volume of compliance Vas = 0,85 l
  • total Q factor Qts = 0,51 (Qms=2,13, Qes=0,67)
  • voice coil diameter = 20 mm
  • maximum peak linear excursion vibration xlin = +/- 1,5 mm
  • mounting diameter d = 70 mm
  • overall diameter d = 83,5 mm
  • mounting depth (not countersunk) t = 43,7 mm
  • mass m = 0,47 kg
PDF data sheet

open a bigger photo

Fountek FE87       order no. fo-fe87       EUR 14,00 excl. VAT: € 11.76 / $ 10.32
7 cm full range driver with aluminium cone. The driver is magnetically shielded.
  • power handling (continuous/programme) = 13 W
  • frequency range = 100-25000 Hz
  • resonance frequency fs = 101 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84 dB (2,83V; 1m)
  • DC resistance Re = 6,776 Ohm
  • force factor BL = 3,1 N/A
  • effective piston radiating area Sd = 27,34 cm2
  • effective mechanical mass incl. air load mms = 2,073 g
  • equivalent volume of compliance Vas = 1,254 l
  • total Q factor Qts = 0,73 (Qms=3,381, Qes=0,939)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 1,0 mm
  • mounting diameter d = 76,5 mm
  • overall diameter d = 79 mm
  • mounting depth (not countersunk) t = 52,7 mm
  • mass m = 0,56 kg
PDF data sheet

open a bigger photo

Fountek FR88       order no. fo-fr88       EUR 18,00 excl. VAT: € 15.13 / $ 13.27
8 cm full range driver with aluminium cone.
  • power handling (continuous/programme) = 15 W
  • frequency range = 105-25000 Hz
  • resonance frequency fs = 105 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 85 dB (2,83V; 1m)
  • DC resistance Re = 6,3 Ohm
  • force factor BL = 3,152 N/A
  • effective piston radiating area Sd = 27,34 cm2
  • effective mechanical mass incl. air load mms = 2 g
  • equivalent volume of compliance Vas = 1,2 l
  • total Q factor Qts = 0,6 (Qms=2,568, Qes=0,777)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 1 mm
  • mounting diameter d = 73,9 mm
  • overall diameter d = 88,4 mm
  • mounting depth (not countersunk) t = 48,1 mm
  • mass m = 0,58 kg
PDF data sheet

open a bigger photo

recommended cabinet 1:
closed cabinet with 0,58 L volume
from 160/101 Hz (-3dB/-8dB)
 
recommended cabinet 2:
2,4 L volume bass reflex cabinet
with 2cm-Rohr reflex tube, 5 cm long.
from 75/63 Hz (-3dB/-8dB).

Fountek FR88EX       order no. fo-fr88EX       EUR 36,00 excl. VAT: € 30.25 / $ 26.54
8 cm full range driver with aluminium cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 15 W
  • frequency range = 95-20000 Hz
  • resonance frequency fs = 95 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 84,3 dB (2,83V; 1m)
  • DC resistance Re = 6 Ohm
  • force factor BL = 3,313 N/A
  • effective piston radiating area Sd = 27,34 cm2
  • effective mechanical mass incl. air load mms = 2,356 g
  • equivalent volume of compliance Vas = 1,269 l
  • total Q factor Qts = 0,47 (Qms=1,96, Qes=0,622)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 3 mm
  • mounting diameter d = 73 mm
  • overall diameter d = 88,4 mm
  • mounting depth (not countersunk) t = 38 mm
  • mass m = 0,35 kg
PDF data sheet

open a bigger photo

recommended cabinet 1:
closed cabinet with 0,48 L volume
from 167/105 Hz (-3dB/-8dB)
 
recommended cabinet 2:
1,9 L volume bass reflex cabinet
with 2cm-Rohr reflex tube, 6 cm long.
from 79/65 Hz (-3dB/-8dB).

Fountek FR89EX       order no. fo-fr89EX       EUR 44,00 excl. VAT: € 36.97 / $ 32.43
8 cm full range driver with aluminium cone. The magnet system is based on Neodymium technology.
  • power handling (continuous/programme) = 25 W
  • frequency range = 70-2000 Hz
  • resonance frequency fs = 97 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 83,6 dB (2,83V; 1m)
  • DC resistance Re = 5,7 Ohm
  • force factor BL = 3,781 N/A
  • effective piston radiating area Sd = 27,34 cm2
  • effective mechanical mass incl. air load mms = 2,611 g
  • equivalent volume of compliance Vas = 1,111 l
  • total Q factor Qts = 0,47 (Qms=1,642, Qes=0,652)
  • voice coil diameter = 25 mm
  • maximum peak linear excursion vibration xlin = +/- 5 mm
  • mounting diameter d = 73 mm
  • overall diameter d = 88,4 mm
  • mounting depth (not countersunk) t = 46,9 mm
  • mass m = 0,525 kg
PDF data sheet
Ribbon Tweeter   Full Range  
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.

Home  
 
© Copyright 2010 Iris Strassacker; All rights reserved. - errors and omissions excepted