Hey guys
tonight i acquired a pair of my dads old speakers. Back in the day he bought these speakers to match his Luxman l-200 amplifier but he had problems with the speakers so gave them to a friend. Now i have them back one of the units is missing the woofer completely while the other has a cheap replacement. what i want to do is restore and buy new 6" drivers that can match or even better the sound these things used to produce. so the real question here is can anyone inform me on the drivers these speakers used to have? or even a suitable replacement?
Thankyou in advance
tonight i acquired a pair of my dads old speakers. Back in the day he bought these speakers to match his Luxman l-200 amplifier but he had problems with the speakers so gave them to a friend. Now i have them back one of the units is missing the woofer completely while the other has a cheap replacement. what i want to do is restore and buy new 6" drivers that can match or even better the sound these things used to produce. so the real question here is can anyone inform me on the drivers these speakers used to have? or even a suitable replacement?
Thankyou in advance
Most old speakers are pretty terrible, using overly simplistic crossovers and cheap drivers. Re-engineering is always an interesting project:
http://www.diyaudio.com/forums/multi-way/203461-restoring-monitor-audio-r300-bookshelf-speakers-3.html#post3593559
Measure your boxes cutouts and volume and we can see what might be doable. 6" plus 1" is about the easiest combination around.
Drivers / Accessories
SEAS PRESTIGE
I have done some of YOUR homework for you already. That looks like acoustic suspension driver with auxiliary bass radiator. But any old 6" reflex driver will probably work. I'd reckon you can fit any tweeter that fits the cutout too. I use a soft dome tweeter here.
Typically a 6" driver needs a notch or tank around 4-5kHz for phase alignment.
http://www.diyaudio.com/forums/multi-way/203461-restoring-monitor-audio-r300-bookshelf-speakers-3.html#post3593559
An externally hosted image should be here but it was not working when we last tested it.
Measure your boxes cutouts and volume and we can see what might be doable. 6" plus 1" is about the easiest combination around.
Drivers / Accessories
SEAS PRESTIGE
I have done some of YOUR homework for you already. That looks like acoustic suspension driver with auxiliary bass radiator. But any old 6" reflex driver will probably work. I'd reckon you can fit any tweeter that fits the cutout too. I use a soft dome tweeter here.
Typically a 6" driver needs a notch or tank around 4-5kHz for phase alignment.
Attachments
Dear Steve,
If I may be so bold to ask: what makes you assume the Epicure 6" behaves, both in SPL and impedance, like the Visaton W170S without making any measurements of the Epicure unit?
Kind Regards,
Eelco
If I may be so bold to ask: what makes you assume the Epicure 6" behaves, both in SPL and impedance, like the Visaton W170S without making any measurements of the Epicure unit?
Kind Regards,
Eelco
It's a good question, but if we don't do a bit of guessing, the problem of replacing drivers is insoluble...😀
With a Visaton W170S, I'd set the notch at 5khZ to tame that peak of cone breakup:
W 170 S - 8 Ohm
With a SEAS ER18RNX, the peak is at 4.5kHz, so the notch capacitor should be 6uF.
H1456-08 ER18RNX
The standard tweeter filter has a red resistor for level that is select on test. THe Zobel is based on a 0.05mH tweeter Le. Easy enough really. Got a better idea? 🙂
With a Visaton W170S, I'd set the notch at 5khZ to tame that peak of cone breakup:
W 170 S - 8 Ohm
With a SEAS ER18RNX, the peak is at 4.5kHz, so the notch capacitor should be 6uF.
H1456-08 ER18RNX
The standard tweeter filter has a red resistor for level that is select on test. THe Zobel is based on a 0.05mH tweeter Le. Easy enough really. Got a better idea? 🙂
Hi,
Replacement 6" woofers are available :
https://www.humanspeakers.com/cgi-bin/price.pl?brand=e
HUMAN Speakers: Epicure 14 information
Not the worlds most complicated crossover.
So you can restore them back to similar to the original for ~ $110.
rgds, sreten.
Whether that is a good idea or not is debatable.
Replacement 6" woofers are available :
https://www.humanspeakers.com/cgi-bin/price.pl?brand=e
HUMAN Speakers: Epicure 14 information
Not the worlds most complicated crossover.
So you can restore them back to similar to the original for ~ $110.
rgds, sreten.
Whether that is a good idea or not is debatable.
Fair 'nuff... It certainly helps.
The better idea would be to have the OP build the x/o as suggested, then download the free demo version of ARTA, get a 5 Euro EC mic, measure and correct if necessary etc...
Kind regards,
Eelco
The better idea would be to have the OP build the x/o as suggested, then download the free demo version of ARTA, get a 5 Euro EC mic, measure and correct if necessary etc...
Kind regards,
Eelco
Ah, that crossover IS interesting, sreten. Usual hopelessly oversimplified stuff, just like I predicted. 😀
That is a "Little girl with a guitar" speaker, which sounds OK with acoustic Jazz, but falls into harshness with anything more complex. In fact I have something similar myself for future experimentation, the Sony E44 with nothing more than a 2.2uF capacitor on the mylar tweeter. Truly horrible speakers with dreadful cone breakup from the bass. I have a better crossover and tweeter in mind. I think I can do something with a woofer like that, which should at least have low stored energy.
That is a "Little girl with a guitar" speaker, which sounds OK with acoustic Jazz, but falls into harshness with anything more complex. In fact I have something similar myself for future experimentation, the Sony E44 with nothing more than a 2.2uF capacitor on the mylar tweeter. Truly horrible speakers with dreadful cone breakup from the bass. I have a better crossover and tweeter in mind. I think I can do something with a woofer like that, which should at least have low stored energy.
Attachments
Hi,
Or spend around $100 on this :
X-LS Classic kit
And try reusing the ABR's (possibly add some mass) instead of a port.
rgds, sreten.
Or spend around $100 on this :
X-LS Classic kit
An externally hosted image should be here but it was not working when we last tested it.
And try reusing the ABR's (possibly add some mass) instead of a port.
rgds, sreten.
Thank you so much for all the help i have received
It gives me piece of mind knowing that i can get original replacement woofers for these speakers but i don't even dare to look at the shipping costs to here in Australia. So as i was looking through different options here in Australia i came across this speaker:
SB Acoustics :: 6" SB17NRXC35-8
Any thoughts?
It gives me piece of mind knowing that i can get original replacement woofers for these speakers but i don't even dare to look at the shipping costs to here in Australia. So as i was looking through different options here in Australia i came across this speaker:
SB Acoustics :: 6" SB17NRXC35-8
Any thoughts?
Wouldn't touch it with a bargepole, my friend! It's not your regular driver, underdamped and low inductance and extended response to HF.
I was thinking more like this:
CA18RLY/22TAF-G
Slot the SEAS 22TFF soft dome if you like too. Sounds more natural.
Morel drivers are things of great beauty and smoothness too. From the polycones to the tweeters like the CAT 298. Filters are easy too with polycones.
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