The price of B&W 802D3 is about $18,000 in Sweden.
Then I think these PM2As are worth the price. They are recommended for Hedlund horns.
Scott hasn’t done one for the Lowthers i would consider but we have talked about it. I may even have one tucked away forgotten.
dave
dave
Hi Dave, I sent you an email about phase plugs and also I'm interested in the enclosure for the PM6A.
There was a photo of the Big Fun horn in this thread. It is a relatively simple yet clever design, predating CAD, but could work very well if you have 2 corners which they need to shine.
If I had the living room space now, would like to try them with a modern fostex fe208ns or somesuch. Most important is the low qts. It should be acceptable in the lower frequencies. Maybe later - we may move out of Hong Kong eventually.
Same for the lowther academy. Would be cool to make it with top modern fostexes, possibly changing the plans a bit in case of different depth of the drivers.
I mentioned before that I once heard lowthers in a tp1 corner horn. Forgot the driver in it, but while an old design, it was perfectly musical.
If I had the living room space now, would like to try them with a modern fostex fe208ns or somesuch. Most important is the low qts. It should be acceptable in the lower frequencies. Maybe later - we may move out of Hong Kong eventually.
Same for the lowther academy. Would be cool to make it with top modern fostexes, possibly changing the plans a bit in case of different depth of the drivers.
I mentioned before that I once heard lowthers in a tp1 corner horn. Forgot the driver in it, but while an old design, it was perfectly musical.
Yes, whether it will do any bass is another question.
Let me have a quick check.
dave
PM2C… can’t find it at the Lowther site. I assume a ceramic magnet on a PM2A? Data?
PM2A, first approximation, fits a 9 litre miniOnken that has an estimated F6 of 90Hz, F10 80 Hz.
Besides not gong very low,fitting an 8” driver in a 9 litre box with vents could be tricky.
dave
PM2A, first approximation, fits a 9 litre miniOnken that has an estimated F6 of 90Hz, F10 80 Hz.
Besides not gong very low,fitting an 8” driver in a 9 litre box with vents could be tricky.
dave
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Hi,
The spec for pm2c
fs = 65.4 Hz
Re = 6.9 ohms
Qes = 0.31
Qms = 2.96
Qts = 0.28
Vas = 38.1 liters
BL = 9.13
SPL (1w 1m) = 97.2 dB
The spec for pm2c
fs = 65.4 Hz
Re = 6.9 ohms
Qes = 0.31
Qms = 2.96
Qts = 0.28
Vas = 38.1 liters
BL = 9.13
SPL (1w 1m) = 97.2 dB
Response is pretty decent based on those numbers.
F10 in the mid/low 40s, F6 low 50s. Really small box thou. 11 litres, could be a challenge to make the baffle big enuff.
Given how low and how small, sensitivity has to give by Hoffman’s Law. The frequency response is probably rising up to the 97dB number.
Response is similar to PM6 but in a third the volume.
dave
F10 in the mid/low 40s, F6 low 50s. Really small box thou. 11 litres, could be a challenge to make the baffle big enuff.
Given how low and how small, sensitivity has to give by Hoffman’s Law. The frequency response is probably rising up to the 97dB number.
Response is similar to PM6 but in a third the volume.
dave
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