Thank you for reply,   1894 chip is placed to check how much helpful it would be in eliminating noise from 8-bit DAC. There's also a software trick that makes 14-bit sound quality from such a sound source, which improves greatly noise level, but I'd like to get something independent. It's...

Hi,   I'm finishing my 2.1 speaker project and I've applied LM1894 noise reduction chip. I'm wondering what would be a difference if I use "FM application" mode (with coil which forms 19kHz filter for FM pilot) - instead of hook-up pins 8 and 9 with 47nF cap ?   Anybody here knows what...

Hello,   So I'm in progress of doing my 2.1 project. I've done few steps, some of them works, some of them need some rework. Today I need help with my amplifier "build" - it's done just to see how it works with my configuration (vintage computer + 12V + 4-10W speakers). Later it will be put...

BUMP.   OK, guys, I've done TDA1519C PCB project, but I'm still waiting for TDA to solder in :)   In the meanwhile I'd like to ask you does it have sense... comparing to my first picture LOL.. I'd like to get few things in one box (PCB): * 2 stereo sources mixer, * sound path split...

Hi again,   I'm crystallizing my idea to build internal speakers for some device.   So far I ended up with: * 2 x Visaton FRWS 5 (4 OHm, 4-10W) * 2 x custom bass (subwoofer, but I don't think so) speakers taken from Acer Aspire 5920 * 2 x TDA1519 (2x6 W each) - one for pair of...

Quote:   I'm sure as for PC desktop I wouldn't do it, but it's an Amiga, mate ;) Plastic case, not metal one - metal would be just speaker covers, with some anti-dust material that would avoid resonance, as I presume. Eventually I would consider some rubber - I've got some dampening...

It's gonna be internal build, not external one - so no woodworking. I'd mount speakers to metal cover attached to plastic computer case (my mod, not ready yet - it will look like my Yamaha PSR speakers in Amiga 1200). Google Amiga 1200, you'd see how much space is there ;-) So it forces speakers...

Hi,   Thanks for express reply ;)   This build is for computer which does have 2 RCA Audio out (Amiga). Sound depends on TV, or external speakers which Amiga is connected to - I'd like sound to be exactly the same in all cases. Of course - better sound quality means the better -...

Thank for quick reply, Avro_Arrow, but your response would be much valuable if it contained some advices, examples, explanations, or links.   As I wrote - I'm novice, total beginner - I even can't read such schemes (not mention about writing, which is some kind of magic for me, at this...

Hi,   I'm going to build internal sound system - 2.1 speakers for stereo system with real track separation (not channel only). It means I have to join bass to both left and right channels.   Does it look as it should ? I start from the scratch, I mean I have no knowledge how to start...

Hi,   I've bought above mentioned speaker to put it to my project: internal 2.1 speakers.   Now my question is: how to connect it ? It has got 5 wires, how to check which is what for ? I presume: 2 for speaker itself, 2 might be for additional power (?) and there's still one left.  ...

Hi,   I'm going to build own internal speaker system to mount inside a computer as I've grown to do something in my life ;-) You know, spare time, willing, curiosity etc.   Audio source: 2xRCA stereo output.   I'm starting to find out all "tech speaking", and I'm trying soldering, so...