killerisme

I have Sony ECM-DS70P Single-point stereo T-mic, Sony MZ-R700, and SP-SPSB-7 SUPER BATTERY MODULE WITH MIC PREAMP OPTION. I use Line-In with manual volume to record, but the volume and quality isn't what I expected. It sounds muffelled to me. I've download other recordings with way better sound and would like to get those results. Is the T-mic just not good enough or is there something I'm missing or doing wrong?