Hi and good day to all DIyers of HFV.
For some good quality time I have been lurking around this forums DIY section keenly reading almost all threads with vast detailed posts. But somehow I felt that there is something missing for noobs who want to make their own stuff ( speaker for start ) as things go too much technical or are plain simple disheartening for excited first timers. So I would appreciate if technical inputs are kept simple or basic so that layman can understand it.
Stage one : Driver pairing
Need few advice for pairing different speaker drivers with each others that can have impact of final sound quality ( taking liberty to discard XO at this stage ) of speakers of different basic material for cone/domes like silk/aluminum/ferrite tweeter with paper cone or kevlar mid/woofers.
Drivers are from same manufacturer namely Peerless India and will be sourced from Jeetubhai Sir ( Mumbai ).
So here is my list of driver choice which I have selected :
1. M13NH 5.25 Paper cone Midbass/ Woofer
M13NH 5.25 Paper Cone T/S Parameters : Company Measured @ 1-4K Hz Freqs of Main (free air ) Only.
RMSE free - 0.93 Ohm
Fs - 69.54 Hz
Re - 3.25 Ohm
Res - 21.34 Ohm
Qms 2.76
Qes - .42
Qts - .36
L1 / L2 - 0.15 / 0.43 mH
R2 -3.76 Ohm
Vas (SD) 7.77 Liters
Mms(SD) 8.55 gms
Cms(SD) 612 uM/Newton
BL(SD) 5.37Tesla-M
SPLref (SD) 89.8 dB(Re)
Aub Index 0.00
Method: fixed-Mmd ( 8.038 gms )
Area(SD)- 95.05 sq cm
2. M13KH 5.25 Kevlar Midbass / Woofer
M13KH 5.25 Kevlar T/S Parameters : Company Measured
RMSE free 0.49 Ohms
Fs 58.97 Hz
Re 3.44 Ohm
Res 67.61 Ohm
QMS 8.15
Qes 0.41
Qts 0.39
L1 / L2 0.17 / 0.27 mH
R2 5.76 Ohm
Vas (SD) 10.76 Liters
Mms (SD) 8.59 gms
Cms (SD) 848 uM / Newton
BL (SD) 5.14 Tesla-M
SPLref (SD) 89.1 dB(Re)
Rub Index 0.01
Method Fixed-Mmd -8.07 gms
Area(SD) 95.05 sq cm
DCR Mode : Fixed 3.44 Ohm
3. Tweeter TL25AN 1 Aluminum
http://diyaudiocart.com/Raw%20Drivers/Peerless%20Fabrikkerne(I)%20Ltd./Peerless-25mm-Aluminum-Dome-Tweeter-TL25AN
4. Tweeter TL25SN 1 Silk Neo low fs
http://peerlessaudio.com/prod_details.asp?id=130
5. Tweeter TL25SG - 1" Ferrite low fs
http://www.peerlessaudio.com/prod_details.asp?id=134
For starter I have used company provided T/S parameters to select drivers for basic 2 way BS or 3 way FS. As time goes on based on suggestions of forum members about + / - ves of each drivers with intended XO at around 2.5K-3K ( approx not confirmed so open to discussion ) i will measure parameters after i get hold of drivers based on published T/S values( taking 10 deviation either side from company measured T/S values ).
I would really like to keep this thread in Stage Format with regular updates of suggestions for making speaker for first timers like me.
This is my first thread in fact first ever post so kindly pardon me for any mistakes.
Eagerly waiting for replies.
Thanks !
For some good quality time I have been lurking around this forums DIY section keenly reading almost all threads with vast detailed posts. But somehow I felt that there is something missing for noobs who want to make their own stuff ( speaker for start ) as things go too much technical or are plain simple disheartening for excited first timers. So I would appreciate if technical inputs are kept simple or basic so that layman can understand it.
Stage one : Driver pairing
Need few advice for pairing different speaker drivers with each others that can have impact of final sound quality ( taking liberty to discard XO at this stage ) of speakers of different basic material for cone/domes like silk/aluminum/ferrite tweeter with paper cone or kevlar mid/woofers.
Drivers are from same manufacturer namely Peerless India and will be sourced from Jeetubhai Sir ( Mumbai ).
So here is my list of driver choice which I have selected :
1. M13NH 5.25 Paper cone Midbass/ Woofer
M13NH 5.25 Paper Cone T/S Parameters : Company Measured @ 1-4K Hz Freqs of Main (free air ) Only.
RMSE free - 0.93 Ohm
Fs - 69.54 Hz
Re - 3.25 Ohm
Res - 21.34 Ohm
Qms 2.76
Qes - .42
Qts - .36
L1 / L2 - 0.15 / 0.43 mH
R2 -3.76 Ohm
Vas (SD) 7.77 Liters
Mms(SD) 8.55 gms
Cms(SD) 612 uM/Newton
BL(SD) 5.37Tesla-M
SPLref (SD) 89.8 dB(Re)
Aub Index 0.00
Method: fixed-Mmd ( 8.038 gms )
Area(SD)- 95.05 sq cm
2. M13KH 5.25 Kevlar Midbass / Woofer
M13KH 5.25 Kevlar T/S Parameters : Company Measured
RMSE free 0.49 Ohms
Fs 58.97 Hz
Re 3.44 Ohm
Res 67.61 Ohm
QMS 8.15
Qes 0.41
Qts 0.39
L1 / L2 0.17 / 0.27 mH
R2 5.76 Ohm
Vas (SD) 10.76 Liters
Mms (SD) 8.59 gms
Cms (SD) 848 uM / Newton
BL (SD) 5.14 Tesla-M
SPLref (SD) 89.1 dB(Re)
Rub Index 0.01
Method Fixed-Mmd -8.07 gms
Area(SD) 95.05 sq cm
DCR Mode : Fixed 3.44 Ohm
3. Tweeter TL25AN 1 Aluminum
http://diyaudiocart.com/Raw%20Drivers/Peerless%20Fabrikkerne(I)%20Ltd./Peerless-25mm-Aluminum-Dome-Tweeter-TL25AN
4. Tweeter TL25SN 1 Silk Neo low fs
http://peerlessaudio.com/prod_details.asp?id=130
5. Tweeter TL25SG - 1" Ferrite low fs
http://www.peerlessaudio.com/prod_details.asp?id=134
For starter I have used company provided T/S parameters to select drivers for basic 2 way BS or 3 way FS. As time goes on based on suggestions of forum members about + / - ves of each drivers with intended XO at around 2.5K-3K ( approx not confirmed so open to discussion ) i will measure parameters after i get hold of drivers based on published T/S values( taking 10 deviation either side from company measured T/S values ).
I would really like to keep this thread in Stage Format with regular updates of suggestions for making speaker for first timers like me.
This is my first thread in fact first ever post so kindly pardon me for any mistakes.
Eagerly waiting for replies.
Thanks !
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