Yes although 20 is too weak through Line-In i have to max it out to 30 so when i amplify there isnt such a significant noise issue. Yep i just bought new batteries. I emailed them this > hi i have a sony NH700 hi-MD and i found that i am unable to record with > your CSB's(with the battery box) through line-in, also if i do not plug the > battery box to the mics when i use mic-in i also receive no sound. is this > suppose to happen? > > If i get another battery box and plug it between the battery box and line-in > would i then be able to use line-in? thankyou. response was The battery box is required to power the CSBs. The battery box is not a microphone pre-amp -- it only powers the microphones. If you NH-700 doesn't have a microphone pre-amp input, it is unsuitable for recording from microphones unless you are recording an exceedingly loud sound source. We strongly recommend that you get a recorder that is designed to accept signals from microphones. You could also buy a microphone pre-amp, but a good one will cost more than a new MD recorder. We can't recommend the inexpensive microphone pre-amps. Feel free to ask more questions. ........................................end of email With the low cost ones they can be powered without the battery box through mic-in so the battery box would amplify the signal? thats the way i interpreted as CSB's need the battery box outright. yes mic-in works fine with battery box although i havent tested it with loud sound sources without the battery box so im not sure if it records just on a very low level or not. i think mine starts automatically on high sensitivity will have to try low sensitivity sometime(suggested for loud source recordings?). yea i purchased your arrangement because of the lack of noise issues through line in (removing noise after a recording seems to distort the recording a bit weird) and it seems significantly louder without amplification. the concert im going to will have three consecutive shows, i only need one decent recording, i would just go mic-in but the artist varies abit between songs but then line-in gives a weak signal, when amplified sounds fine sometimes a bit bassy but has the noise issue. i will also be directly in front of the stage for all 3 if i dont get a decent recording on the first 2. Thankyou for your help.