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Hi I have posted some pics of my amp at the following website: http://chywnaa.zoto.com I have put 4 amp modules in one box and 2 in another.  That way I have a poratable (20kg!) stereo amp. The speaker boxes were made by a carpenter but I spraypainted them and put the drivers in. You can...

This is how I am building my surround system. I bought 6 amps at 250W RMS each! They are very good amps for the price.  I have built Hi Fi type speakers from RSE and they are good quality. Pete

There is a very nice little shop called RSE (lectronics). They have a lot of different kits for hobbists like us. They are just off the Mooi street offramp by Mantech electronics. If you want to know more, let me know. Pete

I just had a look at the Sharc specs... WOW!  I had no idea that they were so powerful. :shock: Now I have to rethink my design! Pete

Hi I am going to do the signal processing for all 6 channels!  The way I am going to do it is to design a generic module for stereo inputs and outputs and build three of them!  I will control the whole thing with another PIC.  It sounds like a bit of a waste I know but I have free samples so it...

Hi I did follow that very well.  You are basically making a low pass filter to block out the noise. Board ideas are great.  What do you use to design you boards?  I have been using eagle.  Is it any good? I have a crappy wharfdale DVD player.  :gah: I want the A/D because I also want to...

All of the components run off 5V. What do you guys use for a 5V power suply and what caps do you use? I was going to use a LM7805 with a 220uF and 0.1uF. Thanks Pete

Love the iPod, not hate it!

I wish I could!  It looks very cool. I'll wait till the price comes down. Pete

I will need to check whether that is alright with the university because there might be copyright issues. If they alow it I am sure I can do that. I don't know how good the lecture will be though. Pete

I will be talking about Digital Signal Processing using microprocessors. I am going to tell them about the amp I am building and how I am going to use ADCs, DACs and DSPs (see DIY forum).  I am sure that most of DIY signal processing is done for audio and video applications. Hopefully I can...

Alright children! Any advice on the DACs? Pete

I might be doing a guest lecture at WITS. I will tell the people about the forum and I will see what the response is! Pete

Pitty about those speakers. Does anyone have any advice for building DAC circuits?  What are the rules of thumb? Pete

Hi Last year, for my final year electrical engineering project, I built a robot to balance a glass of beer on a platform in a car.  I used a DSP to control the system.  That is about the extent of my practical DSP knowledge.  What I do know is the theory of how to program the DSP and why they...

Hi I built the system to be compatible with the Dolby 5.1 system (6 channels).  I have 6 amplifiers running independently.  My DVD player has 5.1 output so I will plug it into the amplifier directly. I want to be able to set the volumes of each channel independently as well as adjust the...

Hello I am trying to build a surround system for home theater. I bought 6x250W RMS amps from RSE(lectronics) and have put them into two boxes (because they are so heavy you can't fit them into one box!).  I have built speakers and tested the system.  It is pretty powerful. I want to do some...

Yo Have you tried talking to the major Universities of SA?  There is big potential there. Pete