Hi everyone,
I’m currently working on a small 3-way based around the KEF SP1632 co-axial driver paired with dual SB Acoustics 5” mid-woofers.
The design is called Concentric Three – M5 and I thought I should share the construction progress for those who are interested.
The KEF SP1632 is a great sounding little driver with several nice features like a braced aluminium/magnesium mid-range cone for suppression of cone break-ups as well as a wave-guide like feature for the aluminium tweeter dome.
Here are more details on the construction as well as detailed measurements on the driver units:
Concentric Three – M5 Construction!
KEF SP1632 Measurements!
SB Acoustics SB15NRXC30-8 Measurements!
Note! The KEF SP1632 driver isn’t generally available to DIY:ers. Either it has to be stripped from a loudspeaker in the “R Series” or ordered as a spare part, but this requires a valid “R Series” serial number in order to be able to obtain the driver.
Regards
/Göran
I’m currently working on a small 3-way based around the KEF SP1632 co-axial driver paired with dual SB Acoustics 5” mid-woofers.
The design is called Concentric Three – M5 and I thought I should share the construction progress for those who are interested.
The KEF SP1632 is a great sounding little driver with several nice features like a braced aluminium/magnesium mid-range cone for suppression of cone break-ups as well as a wave-guide like feature for the aluminium tweeter dome.
Here are more details on the construction as well as detailed measurements on the driver units:
Concentric Three – M5 Construction!
KEF SP1632 Measurements!
SB Acoustics SB15NRXC30-8 Measurements!
Note! The KEF SP1632 driver isn’t generally available to DIY:ers. Either it has to be stripped from a loudspeaker in the “R Series” or ordered as a spare part, but this requires a valid “R Series” serial number in order to be able to obtain the driver.
Regards
/Göran
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