Dear Troels
Thank so much for your hard work and sharing your years of loudspeaker
design experience with the DIY Hi-Fi community.
To fund this second pair of speakers I sold my TQWT MK II to
another enthusiast on one of the UK Hi-Fi Forums. I plan to share more
details about the build on the HiFi Wigwam site soon.
Before deciding which speakers to build next I read all of your articles
and settled on the Ekta Mk II. The sides, rear, and top panels are made
from MDF with a walnut veneer. The front baffle is a double layer of
eighteen-millimetre moisture resistance MDF. I rebated all the cabinet
edges which significantly added to the time taken to build. All panels
glued with structural glue called Cascamite by Polyvine.
The walnut veneer was treated with a simple brush on acrylic finish
however the front panels took a long time to spray with car paint.
I decided to upgrade the series capacitors in the cross over to Alumen Z
for the mid driver. For the bass, I chose the Superior Z. The internal
wires from driver to crossover are pure silver in Teflon sleeves.
The bitumen pads and ten millimeters grey felt is needed as that bass
driver goes deep!
After some deliberation, I decided to make a set of protective grills.
While this obviously keeps the dust of them, more importantly, it should
protect the drivers when my family walks past every day.
Once the drivers and cables had burned in I could really start to
appreciate what a fine sounding design these are. My speakers are
connected to a pair of Hypex NC400 mono power amps. The sound
stage seems wider compared to the last set I made. The bass driver goes
deeper to the point that I may delay building a subwoofer. While
those tweeters are from the ScanSpeak Discovery range they are perfectly
capable of playing modern digital high-resolution recordings. The
midrange is fast and clear with all voices and instruments. I highly
recommend others consider building these three-way speakers.
Best regards
Steve
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