It's not modeled for any TL effects (a bit short perhaps). Driver is on the vertical CL and is centered perhaps 8 to 10 inches from the top. It's a wide baffle, shallow depth design similar to the Poor Man's Stradivarius.
I like the port to be about 6 inch from the bottom, but shouldn't be too critical. Straight BR.
I again emphasize that this is based on measured parameters from my 2010 dated BetsyK's. They were run in for about 24 hours before the final measurements.
I like the port to be about 6 inch from the bottom, but shouldn't be too critical. Straight BR.
I again emphasize that this is based on measured parameters from my 2010 dated BetsyK's. They were run in for about 24 hours before the final measurements.
My 2010 are greenish as well. You can always build the box a bit taller and put a false bottom in. I often either mount a crossover in the bottom or add ballast.
Here are the average measurements after 24 hours of break in:
Re = 5.8079 ohms
Fs = 49.8064 Hz
Zmax = 35.7954 ohms
Qes = 0.5695
Qms = 2.9404
Qts = 0.4771
Le = 0.4154 mH (at 1 kHz)
Diam = 168.2750 mm ( 6.6250 in )
Sd =22239.7074 mm^2( 34.4716 in^2)
Vas = 66.5831 L ( 2.3514 ft^3)
BL = 5.8642 N/A
Mms = 10.7753 g
Cms = 947.6355 uM/N
Kms = 1055.2581 N/M
Rms = 1.1468 R mechanical
Efficiency = 1.3573 %
Sensitivity= 93.3448 dB @1W/1m
Sensitivity= 94.7355 dB @2.83Vrms/1m
Krm = 1.089E-03 ohms Freq dependent resistance
Erm = 804.593E-03 Rem=Krm*(2*pi*f)^Erm
Kxm = 15.047E-03 Henries Freq dependent reactance
Exm = 609.473E-03 Xem=Kxm*(2*pi*f)^Exm
BTW, while I haven't put them in a box yet, they do sound pretty appealing just sitting in free air.
Here are the average measurements after 24 hours of break in:
Re = 5.8079 ohms
Fs = 49.8064 Hz
Zmax = 35.7954 ohms
Qes = 0.5695
Qms = 2.9404
Qts = 0.4771
Le = 0.4154 mH (at 1 kHz)
Diam = 168.2750 mm ( 6.6250 in )
Sd =22239.7074 mm^2( 34.4716 in^2)
Vas = 66.5831 L ( 2.3514 ft^3)
BL = 5.8642 N/A
Mms = 10.7753 g
Cms = 947.6355 uM/N
Kms = 1055.2581 N/M
Rms = 1.1468 R mechanical
Efficiency = 1.3573 %
Sensitivity= 93.3448 dB @1W/1m
Sensitivity= 94.7355 dB @2.83Vrms/1m
Krm = 1.089E-03 ohms Freq dependent resistance
Erm = 804.593E-03 Rem=Krm*(2*pi*f)^Erm
Kxm = 15.047E-03 Henries Freq dependent reactance
Exm = 609.473E-03 Xem=Kxm*(2*pi*f)^Exm
BTW, while I haven't put them in a box yet, they do sound pretty appealing just sitting in free air.
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Thanks!
FWIW, placing the driver at MJK’s [L*0.349] works well enough and vents tend to work best overall at around [L*0.8].
Plugging your numbers into the MLTLs I’ve posted show barely discernible differences in a sim, so are good to go as is, though of course some vent tuning is often required to get the best overall in room response same as any vented alignment.
GM
FWIW, placing the driver at MJK’s [L*0.349] works well enough and vents tend to work best overall at around [L*0.8].
Plugging your numbers into the MLTLs I’ve posted show barely discernible differences in a sim, so are good to go as is, though of course some vent tuning is often required to get the best overall in room response same as any vented alignment.
GM
Currently a 2008 Triumph Tiger. 2003 Ducati Monster before that. I got the nickname in '95 when I would occasionally ride with a local Harley Owners Group. Had a 95 Ducati Monster then. First ride with the group, we were merging onto the interstate and I hit it to get up to speed. Unbeknown to me, behind me was a guy w/ a rep for a fast Harley and he was way way behind. After that, the group took to calling me Fastbike. Worked for me.
46 years of riding this year.
46 years of riding this year.
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