Vifa

JammyBStard · 23rd January 2010, 09:19 PM

Can anyone help me find a datasheet for the drivers I have? they were taken from a paire of Heybrook HB1's;

They are both Vifa;
Main = M21WG-09 8ohm,
Tweet = D26TF-05 6ohm,

I want to design an enclosure for them but I cant find the data; I've found similar but not exact matches in the Tymphany Archives.

Any help apriciated

rabbitz · 24th January 2010, 06:32 AM

There are some old Vifa driver PDFs here but no exact match.

Vifa PDF

This is the only info I could find on the M21WG-09-08 and would be enough to design an enclosure. You could compare that to a PDF that's close from the above site.

Qts 0.70
Qms 4.9
Qes 0.82
Vas 81 litres
Fs 38Hz
Re 5R6
Le 0.9mH
Xmax 3mm
Z 8R
SPL 90dB
Pe 50W
Sd 231cm²
Bl 5.2

Couldn't find the tweeter but the "F" means a different motor (smaller magnet) to the more common "G" versions.

JammyBStard · 24th January 2010, 09:20 AM

Cheers R, It's a start.

JammyBStard · 24th January 2010, 11:38 PM

Guy at Pure-sound sorted me out with the Tweeter:

D26TF-05 6ohm

* Fabric Diaphram
* "Butterfly" VC Assembly
* Magnetic Fluid
* Prepared for customised front
* Uncoloured sound

Nominal Impedance 6 Ohm
Nominal Power (IEC 268-5) 90W
Frequency range 3-30kHz
Sensitivity 88dB
Effective Diaphram 7.1 cm2
Voice Coil Resistance 4.6 Ohm
Operating power 6.4W
Voice coil Diameter 26mm
Voice coil Height 1.6mm
Air gap height 2mm
Free air resonance 1500 Hz
Moving Mass 0.27g
Force factor 2.3 Txm
Magnet weight 104g

23rd January 2010, 09:19 PM	#1
JammyBStard diyAudio Member Join Date: Feb 2008 Location: York, UK	Vifa Can anyone help me find a datasheet for the drivers I have? they were taken from a paire of Heybrook HB1's; They are both Vifa; Main = M21WG-09 8ohm, Tweet = D26TF-05 6ohm, I want to design an enclosure for them but I cant find the data; I've found similar but not exact matches in the Tymphany Archives. Any help apriciated

24th January 2010, 06:32 AM	#2
rabbitz diyAudio Member Join Date: Jul 2003 Location: Newcastle, Australia	There are some old Vifa driver PDFs here but no exact match. Vifa PDF This is the only info I could find on the M21WG-09-08 and would be enough to design an enclosure. You could compare that to a PDF that's close from the above site. Qts 0.70 Qms 4.9 Qes 0.82 Vas 81 litres Fs 38Hz Re 5R6 Le 0.9mH Xmax 3mm Z 8R SPL 90dB Pe 50W Sd 231cm² Bl 5.2 Couldn't find the tweeter but the "F" means a different motor (smaller magnet) to the more common "G" versions. __________________ No longer DIY active

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24th January 2010, 09:20 AM	#3
JammyBStard diyAudio Member Join Date: Feb 2008 Location: York, UK	Cheers R, It's a start.

24th January 2010, 11:38 PM	#4
JammyBStard diyAudio Member Join Date: Feb 2008 Location: York, UK	Guy at Pure-sound sorted me out with the Tweeter: D26TF-05 6ohm * Fabric Diaphram * "Butterfly" VC Assembly * Magnetic Fluid * Prepared for customised front * Uncoloured sound Nominal Impedance 6 Ohm Nominal Power (IEC 268-5) 90W Frequency range 3-30kHz Sensitivity 88dB Effective Diaphram 7.1 cm2 Voice Coil Resistance 4.6 Ohm Operating power 6.4W Voice coil Diameter 26mm Voice coil Height 1.6mm Air gap height 2mm Free air resonance 1500 Hz Moving Mass 0.27g Force factor 2.3 Txm Magnet weight 104g

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