I
have finished my pair of Triton MLTLs !
These
were designed originally as a standmounter by Jeff Bagby,
and then extended by Dr. Jim Griffin as a 'Mass Loaded Transmission
Line' design.
You
can see more here - DiyAudio
Forum Post - I call mine "Copper Reflections"
and
here are some photos -
The
carbon fibre on the front is called 'Copper reflections' ,
hence the name. And it ties in with the copper coloured dustcaps
of the CSS drivers.
My
'Resident Interior Designer' told me that speakers should
be nine inches wide ( I never knew that hi-fi rule ! ) and
so I thought I would put extra side panels onto the original
design.
Dr. Jim was extremely helpful and patient, as ever; and agreed
that a protruding baffle would help keep the 'baffle step
effect' in line with Jeff Bagby's crossover.
The
extra sides are then composed of 3/4 inch solid oak quadrant
in front of pre-veneered mdf panels. I can thoroughly recommend
the extra-thick panels;
another
step up in clarity and detail, due to less box colouration.
The top is also solid oak.
How
do they sound ? -
Superb.
- For a small room, it doesn't get much better. The midrange
is to die for, extremely good at vocals. And in fact, if I
go back to my B&G Radia 40's as a midrange, they suddenly
sound very 'metallic' , which I never noticed previously.
The cone material was invented at Leeds University, so it
must be good, right ? And
if its good enough for Wilson Benesch, its good enough for
me !
Jeff
Bagby reckons that the CSS tweeter ( LD25X ) is a gem, I haven't
heard any reason to argue.
The
bass sounds very similar to sealed bass, precise and detailed.
Jim's
design gives a very efficient speaker ( 92 dB ? ) , so the
speaker sounds relaxed, and the music can breathe. They seldom
need more than 15W per channel
I
used the slot port option ( hence 7.5" length, giving
F3 of 35Hz ). Lambswool stuffing kept clear of the rear of
the drivers using small plastic 'speaker grilles'.
I
must mention Wilmslow Audio, near Leicester, who CNC cut the
panels to my Autocad drawings.
Initially
the midrange is a bit forward in the mix, and has a coloration
to it. At ~ 100 hours run-in, this disappears, and you are
left with a very neutral well-integrated speaker.
At
200 hours, the bass comes up more, and at 300 hours is probably
'fully there'.
Item 1
Ground control to Major Tom
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Item 2
Put
your helmet on and grab your wetsuit.
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Item 3
I
think one week in the Bahamas will sort it.
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