west wrote:

Can you send me some pixs of your chassis with the dimensions? Maybe we can
do some business, if they're for sale.
Cordially,
west

I have a dozen or more monobloc chassis of two sizes to
suit my future production.
At this point they are not for sale because to get the good price
from the automated metal worker I had to order several grand's
worth of chassis.

If I sell some off in small numbers, I am selling my livelihood off way to
cheap
without value adding by fitting out the amp with
some decent parts.

Better you get a metal worker near you to make you up a chassis
or two, or three, if there is to be a pre-amp, and then do all the
hole cutting yourself.
There are bolt up type hole cutters to do all the tube sockets etc.

Don't be afraid of 2mm steel; its good because you can tap if for machine
screws,
and its very rugged.

For one off the best thing if you don't fancy bending thick metal
is to source some Al or Fe channel, mitre 4 peices tother very neatly by
filing the saw cuts, then drill and bolt angles into each corner internally,
and use silicon with the bolts, or machine screws with C/S heads.
Just add Al or Fe flat sheet for the top and bottom, and all this svaes
having to bend up metal at home.

I have done a lot of home bending.

Best way without a press is to make a block of wood or plywood
exactly the internal size of the chassis, and then cramp the sheet cut to size
on the bench and bend the sheet around the block to ensure the bends are
parallel
and square.
You need good wood working tools to make the wood formers.
The problem with home bending is that it always looks like the work of an
amateur
unless you put all the time and effort in with the tools, and you have a
workshop.

The problem with wanting just 3 chassis from a metal worker is that he also has
to
make just a small run, and the guy working with a gullitine and bender can do a
good job,
if you go to the right bloke, and I suggest someone who makes stainless steel
kitchen
sings, and benches; I have had guys like this make brass plate chassis in an
hour, including
mig welding the corners and polishing it up to a professional standard.
The last one for a stereo 5050 integrated amp cost me about today's aud$200,
worth it for
something that will last a long time.
But often they are not interested in small jobs when they are making squillions
from commercial
kitchen fit outs, and they make you wait for-ever if they accept the job.
But usually there is someone who makes metal articles near you someplace,
and a chassis is dead easy, really.

Talk to the guys, visit them at their workplace, take a sample.......

Patrick Turner.