Building a Miniature 300W Speaker Simulator

RE: Building a Miniature 300W Speaker Simulator

nobble — Fri, 08 Feb 2019 01:30:45 GMT

Very nice project! I like how intricate it is inside such a small case!

RE: Building a Miniature 300W Speaker Simulator

barsznica — Mon, 21 Jan 2019 08:03:48 GMT

Great idea and implementation!

RE: Building a Miniature 300W Speaker Simulator

michaelkellett — Sun, 13 Jan 2019 10:26:42 GMT

Nice load, Shabaz.

In case you ever wondered what would happen if you used one of those nice 200W extruded aluminium resistors without a heat sink for a quick test:

[View:/resized-image/__size/620x465/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-af1c0782-6fa8-42c2-aa95-1314bdecf9ec/0285.contentimage_5F00_189809.jpg:620:465]

It serves as a useful reminder, did it several years ago.

RE: Building a Miniature 300W Speaker Simulator

Gough Lui — Sun, 13 Jan 2019 02:21:08 GMT

and then carefully lift off the shape/stencil without sneezing.

Great advice [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-af1c0782-6fa8-42c2-aa95-1314bdecf9ec/2376.contentimage_5F00_1.png:16:16].

- Gough

RE: Building a Miniature 300W Speaker Simulator

neilk — Sat, 12 Jan 2019 17:22:53 GMT

Great project, shabaz, and, as always, superbly written and illustrated! [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-af1c0782-6fa8-42c2-aa95-1314bdecf9ec/5822.contentimage_5F00_1.png:16:16]

Neil

RE: Building a Miniature 300W Speaker Simulator

jw0752 — Fri, 11 Jan 2019 21:03:14 GMT

Hi Shabaz,

This is a really cool project and an excellent example of doing something right. A small piezo element could be introduced to let you hear the energy being dissipated. If you call the center connection 0 and parallel the outer connectors you also have the option of a 2 Ohm load.

John

RE: Building a Miniature 300W Speaker Simulator

14rhb — Fri, 11 Jan 2019 20:50:18 GMT

As always from Shabaz, a super-detailed blog post on an indispensable piece of test kit. Great photos including the 'dremel' action shot.

For anyone without a Dremel, M3 bolts cut quite easily in the cheap crimp tools like this one https://uk.farnell.com/duratool/8pk-033-f/crimp-tool-wire-stripper/dp/3127424 and just need a quick easing with a needle file to remove the edge.

Rod

RE: Building a Miniature 300W Speaker Simulator

stevesmythe — Fri, 11 Jan 2019 19:32:01 GMT

So, can you dry your hair with it? [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-af1c0782-6fa8-42c2-aa95-1314bdecf9ec/contentimage_5F00_1.png:16:16]

RE: Building a Miniature 300W Speaker Simulator

DAB — Fri, 11 Jan 2019 19:29:55 GMT

Great project and useful design.

DAB

RE: Building a Miniature 300W Speaker Simulator

fmilburn — Fri, 11 Jan 2019 16:53:04 GMT

Very impressive project Shabaz! I like the way you researched the problem and thought about how it might be solved differently and improved. Great build and use of materials also.

Frank

RE: Building a Miniature 300W Speaker Simulator

Jan Cumps — Fri, 11 Jan 2019 16:08:31 GMT

I spotted this album in the aluminium housing reflection:

[View:/resized-image/__size/220x220/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-af1c0782-6fa8-42c2-aa95-1314bdecf9ec/contentimage_5F00_189808.jpg:220:220]

RE: Building a Miniature 300W Speaker Simulator

rsc — Fri, 11 Jan 2019 16:06:28 GMT

Cool project. Can you hear the sound through the hot wires when it's operating on a radio?

Scott