Search results

Next job was to assemble the midrange "triangle".  This is what will help keep all the ribs true and aligned. Step 1 - glue and clamp the center brace to the top: Step 2 - glue and clamp the divider to the center brace: Step 3 - check for square: Kind regards, Ian.

^^^ Thank you for your kind words everyone  :dop: That's great man - well done!  I have never heard these speakers - wouldn't mind having a listen sometime, especially when they come with such a stellar referral! I have been wondering what to do with all these little round bits.  Not a bad...

^^^ Thanks everyone  :thumbs:  I have been doing a lot of aluminium work of late with the amplifier build, and I tell you what: after doing some woodwork again for the first time in quite a while I find it rather relaxing and enjoyable.  Something about the smell of sawing a piece of wood and...

Time for an update! The next parts I milled were the front plates: TYPE M400 BALANCED POWER AMPLIFIER: Recess for the name / logo plate: This is where the power switch will go.  Recessed nicely so it doesn't stick out.  The two smaller holes below are where LEDs will go into.  They...

Hi guys! It's about time for an update on this project - I finally had some time to start cutting some wood  :) --- CLICK FOR LARGER IMAGES --- I start out laminating up 2 pieces of 15mm Birch ply for the baffles.  I do both baffles at the same time: After some saw work to trim the edges...

My home has 3 phase electricity which comes in pretty handy at times. Years ago I routed one of the phases to supply only the hifi room, so it has its own dedicated supply line with no fridges, electric fences, pool pump motors, etc on it.  Re-run the supply cables with 6mm copper all the way...

^^^  :giggle: Here are some pics of the back plate.  Still rough & needs to be de-burred, but you can get the idea. You can see the binding posts I was going to use in this pic, but decided since then to just bite the bullet and have ordered 4 pairs of nice WBT posts.  Not that I honestly...

Been a bit busy of late, but here are some more progress photos: Machining the amplifier chassis bottom plates.  You can see MountainMan is busy cutting the slots here: Next the machine setup is done for the side plates.  The final size of these plates are 230mm x 600mm: On the left...

Grounding is a very interesting topic, and can cause quite a bit of headache when Murphy is working against you. I am sure you know about this, but just in-case anyone out there doesn't - this article by Rod Elliott is a very good primer on the subject:  http://sound.whsites.net/earthing.htm...

Yip, you make a valid point as always.  Although from an electronics point of view the inline capacitor shouldn't cause any problems (if sized correctly), I have found that these capacitors do have a "signature" they impart to what I hear and because of that I don't want them there.  One of the...

These top plates have come a long way from the time I started on them - here is a quick timeline:

CNC machines are for lazy people like me - I get the feeling your are a hard worker  :thumbs: CNC machines are lovely, but I must tell you that the learning curve is steep, accidents happen rather often (especially if your concentration slips even for a second), and programming it can take much...

I would love to help you guys with a chassis kit but at this point it isn't viable from a time and cost point of view - it would end up so expensive that nobody would buy it.  But who knows - perhaps in the future at some point things may happen. In the meantime why don't you just buy some...

Construction work has officially started... Finally  :shh: (Click images to view larger size) The amplifiers will be monoblock design, so I start with machining the top plates for a set. 10mm structural grade aluminium plate loaded onto MountainMan.  The starting size of the plates are...

Well done  :2thumbs:  I didn't think it would make such a big difference.  I need to go back and review my calculations  :thinking: These amplifiers are as scarce as hen's teeth unfortunately - I think people are hesitant to build because of the complexity  :help:  As far as I know there are...

Hi Guys, I am fine tuning my circuit design for DC input protection on my big amplifier build.  The amplifier is fully DC coupled (obviously), so I reckon I will be clever and monitor for DC on the input, and if an excessive amount of DC is present, I will have the circuitry automatically...

Good work there Meneer! Neatly done point-to-point wiring has a very elegant look to it somehow  :thumbs: Out of interest, what's the specifications of this amplifier, and what will you be driving with it? Best of luck with your project - I am looking on with interest  :dop: Kind regards, Ian.

OK,  there are a number of things to consider: 1. The smaller the opening, the less easily air can move so you will build pressure. 2. The smaller the cross section of your line, the more you inhibit airflow, thus building pressure. 3. Any bends, folds, obstacles and daming material will cause...

The thermal conductivity of copper is better than aluminium, but not more than double. You need to consider volume here. Imagine your heatsink is 400mm wide x 150mm tall x 40mm thick, which is made up of 10mm back plate and 30mm fins. So, the back plate of the heatsink can be considered to be...

I find that I really enjoy designing electronic circuits for some unknowable reason. It definitely is fun building them too but the research and design part is what really gets me excited  ;D The PCB shown above will,be mounted to 2 heatsinks sitting side by side such that each row of...