Voice-over actor. Chain: RODE nt1 to dbx 386s to Tascam dr-40 w input gain at 1. Room: 3x4 closet w acoustic foam. Not using computer to save space, eliminate fan noise. Results are quiet (no hiss or hum) but VOs sound brittle and tinny. Is AD conversion compromised greatly by Tascam? Is there a sub $1K recorder that would improve results?