I'm a newbie at DIY speakers. I've built a couple OB designs but they were designed specifically for the drivers used. Im wondering about dropping the Lii 6" driver into the Madisound BK-16 folded horn enclosure?
thanks
thanks
That driver is not fit for backloaded horns like that BK16 due to the high QTS. They don't work well in horns. And the cabinet is build for a very specific set of parameters to fit. Not a good id i think.
The driver is ment for OB and will work in a sealed also (but won't go loww) or aperiodic ported. Not in a horn.
The driver is ment for OB and will work in a sealed also (but won't go loww) or aperiodic ported. Not in a horn.
I’m curious about the Lii Crystal 6”. How does Lii get such high sensitivity out of a metal cone? It seems too good to be true, but is the cost just the lack of anything below 200 Hz?
First, the BK16 isn’t a particularily well designed horn. It dates from a timr before real simulators.
I suspect this driver could be horn loaded, but the high Qts means it would need to be quite a bit larger than BK16.
Someone who knows what they are doing would need to design a horn for it.
dave
I suspect this driver could be horn loaded, but the high Qts means it would need to be quite a bit larger than BK16.
Someone who knows what they are doing would need to design a horn for it.
dave
Further. The design would have to assume the T/S data is close.
At least one specification is quite misleading.
Mean SPL: 98.5. People will assume that is the sensitivity.
But from their own chart, linked above, the climb to a near 10 dB peak above 2k greatly biases the mean. More like 92 dB, and the peak will need dealing in some way. Some assumptions need to be made since they have cropped the scale off the y-axis.
dave
At least one specification is quite misleading.
Mean SPL: 98.5. People will assume that is the sensitivity.
But from their own chart, linked above, the climb to a near 10 dB peak above 2k greatly biases the mean. More like 92 dB, and the peak will need dealing in some way. Some assumptions need to be made since they have cropped the scale off the y-axis.
dave
? - because Re is ~8ohm, 2.83V isn't enough for "1 watt" - but is a standard. 3.15v would be "1watt" into 10 ohms so a bit higher than below. FWIW for a warm balance it looks ok in one cubic foot tuned 41Hz. (low Z drive)
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For reference, based on the stated T/S values, standard calculation gives:
η0 = 0.446% [nearly]
SPL = 88.51dB 1m/w
SPL = 88.538dB 1m/2.83v
η0 = 0.446% [nearly]
SPL = 88.51dB 1m/w
SPL = 88.538dB 1m/2.83v
Thanks for the explanations on sensitivity. The stated number looked unlikely, but I don't know enough to show why.
