Visaton BG17 Fullrange

[350650]

I wanted cheap full range drivers and i came across these drivers on the internet the visatons bg17 6.5" impedance-8ohms. I am interested in using them in OB [open baffle] configuration. I would like your opinion regarding the driver and please help me and suggest if i can do some modifications to the driver [like phase plug as suggested by Mr. T.antony in my previous post regarding the diy fullrange boltons but i was afraid of doing it coz they are no more available ] and crossover The technical specifications of the driver are as follows:
http://http://www.europe-audio.com/Product.asp?Product_ID=772

Technical Data:
Nominal power handling 40 Watt
Peak power handling 60 Watt
Nominal impedance 8 Ohm
Frequency response (-10 dB) 80 - 20000 Hz
Mean sound pressure level 93 dB (1W/1m)
Maximum cone displacement 4 mm
Resonance frequency fs 110 Hz
Magnetic induction 1,0 Tesla
Magnetic flux 250 Weber
Height of front pole-plate 4 mm
Voice coil diameter 20 mm
Height of winding 7 mm
Cutout diameter 146 mm
Net weight 0,72 kg
D.C. resistance Rdc 6,5 Ohm
Mechanical Q factor Qms 2,87
Electrical Q factor Qes 0,83
Total Q factor Qts 0,64
Equivalent volume Vas 9,7 l
Effective piston area Sd 143 cm2
Dynamically moved mass Mms 6,5 g
Force factor Bxl 5,7 T m
Inductance of the voice coil L 0,7 mH

 

[t.antony]

Fs seems too high for full range use. If you are looking for a single driver OB setup, Visaton B200 has a good reputation

6moons audio reviews: RoadTour Exit 5 with Michael Lavorgna

 

[350650]

My pocket doesnt allow me to go for a pair of b200 [230].:sad:
What about bg20 [44] the fs is down to 38hz.
The specifications are as follows:
Technical Data:
Rated power 40 W
Maximum power 70 W
Nominal impedance Z 8 Ohm
Frequency response fu18000 Hz
(fu: Lower cut-off frequency depending on cabinet) .
Mean sound pressure level 92 dB (1 W/1 m)
Opening angle (-6 dB) 45/4000 Hz
Excursion limit +/?4 mm
Resonance frequency fs 38 Hz
Magnetic induction 1,2 T
Magnetic flux 380 Wb
Height of front pole-plate 4 mm
Voice coil diameter 25 mm
Height of winding 8 mm
Cutout diameter 184 mm
Net weight 1,3 kg
D.C. resistance Rdc 6,2 Ohm
Mechanical Q factor Qms 3,47
Electrical Q factor Qes 0,51
Total Q factor Qts 0,44
Equivalent volume Vas 110 l
Effective piston area Sd 214 cm
Dynamically moved mass Mms 10 g
Force factor Bxl 6,1 Tm
Inductance of the voice coil L 0,8 mH
Temperature range ?25 ... 70 C

 

[t.antony]

As a rule of thumb high Qts drivers (0.8 to 1.5) work well in OB. Lower Qts will rolloff faster in an OB resulting in reduced bass extension. However some low Qts low Fs drivers like the B200 can also be good OB perfomers - as people reports from their experience. The BG20 doesn't seem to have any such reputation.

The Boston Acoustics (Philips) 8 inch fullrange works well in OB, it's got better high frequency response than the Boltons and cheaper as well.

 

[GeorgeO]

Why not consider one of the Fostex drivers?

 

[soundofmusic]

The Boston Acoustics (Philips) 8 inch fullrange works well in OB, it's got better high frequency response than the Boltons and cheaper as well.[/QUOTE]


@ T.Antony : I too saw a Boston Acoustics FR speakers in one of the electronics shops in Coimbatore for Rs.300/ speaker. Is it the Original Boston Acoustics. i could not find any information about these FR speakers in the boston acoustics website.

thanks in advance.

 

[t.antony]

@ T.Antony : I too saw a Boston Acoustics FR speakers in one of the electronics shops in Coimbatore for Rs.300/ speaker. Is it the Original Boston Acoustics. i could not find any information about these FR speakers in the boston acoustics website.
thanks in advance.

There are many fakes available so buy from genuine dealers only. In Bangalore you can try Globe Industries in SP road.

Here is link to one Boston Acoustics (India) catalogue - D&M Premium Sound Solutions

 

[350650]

The problem is i am not getiin the philips 8" full range driver here in delhi. I tried at lajpat rai mkt. philips spares shop no. 402&406 but they also don't have the drivers. Is there any way i can get those drivers in delhi or if anyone can possibly courier them here.

 

[Danieljohn]

The problem is i am not getiin the philips 8" full range driver here in delhi. I tried at lajpat rai mkt. philips spares shop no. 402&406 but they also don't have the drivers. Is there any way i can get those drivers in delhi or if anyone can possibly courier them here.

rajdeepelectronics.com offer upto 12" Philips Fullrange Drivers