I have been offered these two speakers, both in good condition. Does someone have any further info on them? Any suggestions for suitable enclosures?
cheers
A
cheers
A
Last edited:
Hi,
My best advice is break up into parts and move them all on.
The vintage market is as such that playing with old drivers
is not remotely cost effective, unless you are that market.
Vintage drivers generally sell for pretty silly money IMO.
rgds, sreten.
My best advice is break up into parts and move them all on.
The vintage market is as such that playing with old drivers
is not remotely cost effective, unless you are that market.
Vintage drivers generally sell for pretty silly money IMO.
rgds, sreten.
Last edited:
Hi,
£80 to £160 is the going rate for a Goodmans Audiom 60.
(may depend on the drivers impedance as to value).
$150 to $200 for the Wharfedale W15/CS.
rgds, sreten.
£80 to £160 is the going rate for a Goodmans Audiom 60.
(may depend on the drivers impedance as to value).
$150 to $200 for the Wharfedale W15/CS.
rgds, sreten.
Last edited:
Vintage Wharfedale W15CS
The advice given here by one other is worthy of consideration. However, if you, like me, have an attachment to vintage speakers, may I make the following suggestion(s)?
First and foremost, these speakers WILL NOT handle the power that most modern speakers can. These vintage units were quite efficient; they had to be considering that in the 50's, 30 watts was considered to be an arc welder. With that in mind, conduct yourself accordingly. Common sense prevails.
While the cloth annulus will hold up, (the earlier foam didn't) as will the spider, the adhesives are 50 plus years old. I overdrove a pair of Wharfedale Co-axials with a 30 watt EICO tube amp and the voice coils unraveled in short order. Being aluminum wire, removing the twisted mess from the magnet gap was impossible so I had to rewind them with copper which was an arduous task since the tweeters are wired to the 12 inch cone, also with aluminum wire which, at the time, I had no way to solder it, if broken. That problem has recently been remedied with the acquisition of aluminum solder and flux.
Another unit, a refoamed W15FS, lifted the spider off the frame; the glue failed. Fortunately, the coil wasn't damaged. It now works.
I could go on, ad nauseum, but below are the Theile/Small parameters for a perfectly good working W15CS. The vents have been normalised for 0.75 inch, the thickness of the front panel. While small by some standards, this will apply the brakes, so to speak, to the diaphragm at large excursions. In the unit I still use, diaphragm excursions approaching 2mm will rattle anything that isn't nailed down. I used the 9.25 ft^3 alignment because I still have and use the Briggs' three way a half brother built in 1957 anong with the EICO HF60 preamp and HF-30 power amp, both restored.
Assuming a power input of 30 watts, the maximum acoustic power at 1m with a 4mm excursion is 113 dB. From there, it falls to a minimum of 105 dB at 34 hz. That's assuming a 4mm excursion. With a 2mm excursion, those figures are decreased by 6 dB. A corner placement is recommended as is internal bracing. The W15 doesn't lend itself to front loading very easily so I would recommend moving the front baffle back an extra 0.75 inch and rear mount the speaker onto a removable plate. Use T-nuts. As for the internal bracing, three pieces of wood (NOT plywood or MDF) about 1.5 inches square, glued and screwed to the inside panels and mutually perpendicular, so all 3 can be glued and/or bolted together at the intersection.
Here's the numbers and the alignments for both cabinet volumes.
Driver PropertiesName: W15CSD
Type: Standard one-way driver
Company: Wharfedale
Comment: Yasumasa
No. of Drivers = 1
Fs = 24.02 Hz
Qms = 5.998
Vas = 551.6 liters
Cms = 879.6 µm/N
Mms = 49.92 g
Rms = 2.769 lb/s
Xmax = 4 mm
Xmech = 0.236 in
P-Dia = 11.45 in
Sd = 0.0665 sq.m
P-Vd = 0.00939 cu.ft
Qes = 0.334
Re = 9.8 ohms
Z = 11.76 ohms
BL = 14.88 Tm
Pe = 50 watts
Qts = 0.316
no = 2.188 %
1-W SPL = 95.6 dB
2.83-V SPL = 94.72 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box
Shape: Prism, square (optimum)
Vb = 6 cu.ft
Fb = 29.6 Hz
QL = 5.696
F3 = 40.73 Hz
Fill = minimal
No. of Vents = 1
Vent shape = round
Vent ends = one flush
Dv = 2.973 in (3")
Lv = 0.75 in
Driver Properties
Name: W15CSD
Type: Standard one-way driver
Company: Wharfedale
Comment: Yasumasa
No. of Drivers = 1
Fs = 24.02 Hz
Qms = 5.998
Vas = 551.6 liters
Cms = 879.6 µm/N
Mms = 49.92 g
Rms = 2.769 lb/s
Xmax = 4 mm
Xmech = 0.236 in
P-Dia = 11.45 in
Sd = 0.0665 sq.m
P-Vd = 0.00939 cu.ft
Qes = 0.334
Re = 9.8 ohms
Z = 11.76 ohms
BL = 14.88 Tm
Pe = 50 watts
Qts = 0.316
no = 2.188 %
1-W SPL = 95.6 dB
2.83-V SPL = 94.72 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box
Shape: Prism, square (optimum)
Vb = 9.25 cu.ft
Fb = 26.42 Hz
QL = 5.696
F3 = 37.73 Hz
Fill = normal
No. of Vents = 1
Vent shape = round
Vent ends = one flush
Dv = 3.651 in (3 5/8")
Lv = 0.75 in
The advice given here by one other is worthy of consideration. However, if you, like me, have an attachment to vintage speakers, may I make the following suggestion(s)?
First and foremost, these speakers WILL NOT handle the power that most modern speakers can. These vintage units were quite efficient; they had to be considering that in the 50's, 30 watts was considered to be an arc welder. With that in mind, conduct yourself accordingly. Common sense prevails.
While the cloth annulus will hold up, (the earlier foam didn't) as will the spider, the adhesives are 50 plus years old. I overdrove a pair of Wharfedale Co-axials with a 30 watt EICO tube amp and the voice coils unraveled in short order. Being aluminum wire, removing the twisted mess from the magnet gap was impossible so I had to rewind them with copper which was an arduous task since the tweeters are wired to the 12 inch cone, also with aluminum wire which, at the time, I had no way to solder it, if broken. That problem has recently been remedied with the acquisition of aluminum solder and flux.
Another unit, a refoamed W15FS, lifted the spider off the frame; the glue failed. Fortunately, the coil wasn't damaged. It now works.
I could go on, ad nauseum, but below are the Theile/Small parameters for a perfectly good working W15CS. The vents have been normalised for 0.75 inch, the thickness of the front panel. While small by some standards, this will apply the brakes, so to speak, to the diaphragm at large excursions. In the unit I still use, diaphragm excursions approaching 2mm will rattle anything that isn't nailed down. I used the 9.25 ft^3 alignment because I still have and use the Briggs' three way a half brother built in 1957 anong with the EICO HF60 preamp and HF-30 power amp, both restored.
Assuming a power input of 30 watts, the maximum acoustic power at 1m with a 4mm excursion is 113 dB. From there, it falls to a minimum of 105 dB at 34 hz. That's assuming a 4mm excursion. With a 2mm excursion, those figures are decreased by 6 dB. A corner placement is recommended as is internal bracing. The W15 doesn't lend itself to front loading very easily so I would recommend moving the front baffle back an extra 0.75 inch and rear mount the speaker onto a removable plate. Use T-nuts. As for the internal bracing, three pieces of wood (NOT plywood or MDF) about 1.5 inches square, glued and screwed to the inside panels and mutually perpendicular, so all 3 can be glued and/or bolted together at the intersection.
Here's the numbers and the alignments for both cabinet volumes.
Driver PropertiesName: W15CSD
Type: Standard one-way driver
Company: Wharfedale
Comment: Yasumasa
No. of Drivers = 1
Fs = 24.02 Hz
Qms = 5.998
Vas = 551.6 liters
Cms = 879.6 µm/N
Mms = 49.92 g
Rms = 2.769 lb/s
Xmax = 4 mm
Xmech = 0.236 in
P-Dia = 11.45 in
Sd = 0.0665 sq.m
P-Vd = 0.00939 cu.ft
Qes = 0.334
Re = 9.8 ohms
Z = 11.76 ohms
BL = 14.88 Tm
Pe = 50 watts
Qts = 0.316
no = 2.188 %
1-W SPL = 95.6 dB
2.83-V SPL = 94.72 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box
Shape: Prism, square (optimum)
Vb = 6 cu.ft
Fb = 29.6 Hz
QL = 5.696
F3 = 40.73 Hz
Fill = minimal
No. of Vents = 1
Vent shape = round
Vent ends = one flush
Dv = 2.973 in (3")
Lv = 0.75 in
Driver Properties
Name: W15CSD
Type: Standard one-way driver
Company: Wharfedale
Comment: Yasumasa
No. of Drivers = 1
Fs = 24.02 Hz
Qms = 5.998
Vas = 551.6 liters
Cms = 879.6 µm/N
Mms = 49.92 g
Rms = 2.769 lb/s
Xmax = 4 mm
Xmech = 0.236 in
P-Dia = 11.45 in
Sd = 0.0665 sq.m
P-Vd = 0.00939 cu.ft
Qes = 0.334
Re = 9.8 ohms
Z = 11.76 ohms
BL = 14.88 Tm
Pe = 50 watts
Qts = 0.316
no = 2.188 %
1-W SPL = 95.6 dB
2.83-V SPL = 94.72 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box
Shape: Prism, square (optimum)
Vb = 9.25 cu.ft
Fb = 26.42 Hz
QL = 5.696
F3 = 37.73 Hz
Fill = normal
No. of Vents = 1
Vent shape = round
Vent ends = one flush
Dv = 3.651 in (3 5/8")
Lv = 0.75 in
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