Bolton fullrange drivers

[sachu888]

Very nice Santosh

Regards
Sachin

 

[musiklava79]

Today's progress.

Hey, those look uncannily like the Wibaqs!!

I can see a panel behind the cabinet behind the open speaker cut-out. Is that a fold in the cabinet or something else? What are the reflectors used for and how many per cabinet?

May we have the line's length and the vent area please? Also, the internal dimensions of the box if you don't mind.

 

[sann]

Yes, they are looking like WIBAQ's, yes that panel is the fold. Reflectors are used to reflect the waves which are traveling at the top of the cab and direct them to the port. Line length is calculated based on the Fs of the driver which I didnt have in hand when the cab was being designed, I have used the length for AD9710 Fs.
External dimensions are around 1150x350x400 mm, panel thickness is 18mm.

 

[musiklava79]

Thank you for the information ........ Santosh! :clapping:

 

[Sumanta]

A basic query.
Explain reflector in your speaker design. I thought there is a cutout on the right (from viewer side) speaker top. Is that a reflector.
Cutout at base front are for air pass, right?
May be a photo of the back will explain things to me.
Sorry for the trouble.

 

[viki_v2]

I can Model a MLTL if you want.

 

[Krishnaaudiovideo]

I recently acquired Bolton 20BF22, 8" fullrange drivers.
There is no specification available on the web. Does anybody know / has measured their TS parameters? Also please suggest a cabinet design for them. Will TWQT be a good idea?
Regards,
~sann

 

[Krishnaaudiovideo]

They are 6oms at 40watts RMS

 

[Hari Iyer]

I can Model a MLTL if you want.

IMO an ML TL would not be good due to high Qtc of this driver. Can make a good OB though.

 

[Danieljohn]

I recently got these 12" Bolton Full range drivers. They are yet to reached me though.
Any info regarding these drives would be helpful:

Speakers reached ?
If so I'll inform you the details.

 

[Amateur_Audiophile]

I have one pair of Bolton 8 inches full range available, if anyone wants to put them in a enclosure.

 

[Danieljohn]

I have one pair of Bolton 8 inches full range available, if anyone wants to put them in a enclosure.

Thanks Dear "Big Heart" Amateur Audiophile,
for Gifting me not just Fullrange Speakers but Woofers & Dome Tweeters as well !

God Bless you abundantly !

Regards
Aaron Nikhil

 

[Danieljohn]

The Fullrange Speakers which I received from
"Big Heart" Amateur Audiophile are The Original 6.5" Fullrange Drivers (Accordian type suspension) which were copied & refined by Lii Audio by implementing inverted surround suspension so that bass could go down to 40 hz wher as The original's are limited to 50-60 hz but these Sound Lifelike when it comes to Mid Bass, Midrange & Mid highs !

Yes I'm interested if you let me know how soft the suspensions are by some data.

 

[sadik]

This thread seems to have galloped pretty long way and time..... I kind of get amused reading my own posts too.... !!!

Currently FR with dual woofers in H frame is banging the neighbors too ! Don't go by the looks. Its still experimental to pave way to final (hopefully) iteration of good looking OBs with dual 15" woofers. And it does sound awesome from 17K down to 38Hz of seamless integration in a 2 way ...... Those white cone FR are F6 by Lii Audio driven from SET. ( BTW there could be another group buy for F6, a few slots remaining. Landing price would be 7-8K each pair, all paid. Interested ? PM me )

View attachment 38001

This Setup looks like "THE WALL" ..

 

[sachu888]

I have the NOS Bolton 8" 4 Ohms Full range drivers. My friend had measured TS parameters for me. I am attaching a pic for the same.

 

[keith_correa]

Currently FR with dual woofers in H frame is banging the neighbors too !

Er, I have a dirty mind but what exactly do you mean by this?

 

[Sanjeev Kumar]

Rutcho's Loudspeaker System Projects

I hope all my friends will like it

 

[Sanjeev Kumar]

I have recently got same Hi Q driver. We have tested it in 40lt bass reflex design. It sounds very good. Experienced members here and another forums suggested TL for it.

Brother let me know where I can get these drivers .



I have another 6.5" Philips full range pair. They sound much better than Philips 8" but I could not get any info abut them.




Regards
Sachin

 

[Sanjeev Kumar]

Sachin,


I and Josh have the same Philips 8' FR drivers with brown cones.

regds,
shafic.

Joining the Philips full ranger parade - Loudspeakers - Lenco Heaven Turntable Forum

Joining the Philips full ranger parade. Hi everybody! The threads about full range drivers and especially the Philips 9710 made me go down memory lane. HISTORY: Philips entered Indian market during the late 1950s and in a few years

www.lencoheaven.net

 

[reubensm]

Anyone heard of Luxco speakers? This brand was also quite commonly used by local speaker manufacturers and DIY enthusiasts in the 1980s.