Before I take a stab at the questions from the posts above, let me clearly state I am NO expert and I didnt stay at a holiday Inn last night.
1. The biggest cost in a homebrew caller is the wireless microphone be it a NADY or an AZDEN, The middle caller with the TOA610, Nady351, canuck 193 amp, batteries in series for 18VDC to really drive the AMP, plus MP3 player would cost close to the price of a spitfire, but would have the clarity and volume of a CS24-10watt... and I know this because I own a CS24 10watt.
2. The AMPS are both under 20 dollars and if you are asking for my choice I am very partial to the Canuck 193, its loud, clear and it has built in over voltage protection, don't ask me how I learned about this feature..lol
3. I have used both Azden (cheaper) and Nady 351 wireless microphone both work well, I could easily get 50 yard reception with the caller on the ground, others posted better results I am only stating the distance I got. Another note if your really into Feq response, the Nady has a higher Feq response then the cheaper Azden for what its worth.
4. I picked pelican cases or their knock offs due to the easy to carry and the fact I could carry the transmitter, wire, mp3 player and spare batteries inside the caller so everything stayed in one neat package in the vehicle and going to and from the stand.
5. When I got into building homebrew Ecallers, I learned a lot from Lionho and doggin coyotes,, if your serious about building a quality ecaller it is well worth the effort to go back and search and read their posts.
