Hi,
While I was trying to record some music in my Akai CS - M02 Deck I find the output which is getting recorded a bit subdued.I was recording from the FM Receiver and while the audio in FM is so clear and vibrant,the audio recorded in tape happens to be heavy on BASS and subdued.My head,pinch roller are all clean.
Can anyone suggest as what could be the issue here?
Well, its a common way for checking decks (even back in the old days). Record something and play back, if the deck is good, it would sound as good, if not better than the original. That's why I always advise to check out the recording before buying a deck.
The dullness can be attributed to many reasons. It could be the type of tape used, the age of the tape, a worn Record/playback head, it could be the pressure pad of your cassette tape, it could be the recording level setting on your deck, it could be the bias calibration of your deck (very important for recording), etc. If you are looking at it from a pure level perspective, then there can be differences as the line out of your cassette deck may be at a differential gain point when compared to your inbuilt tuner. In short there are many dependencies involved.
From my experience, TDK tapes produce some good results with recordings.
If you want to make your recordings sound bright, record with the dolby switch turned on and play back with the dolby switch turned off. Dolby boosts the highs during recording and rolls them off on playback. This is one way to make your recordings sound bright. You can also experiment with different recording levels (be careful not to overload your recordings). If your deck has an adjustable bias control on the panel, you can experiment with different bias settings.
From my experience, I have got a perfect replication (to my ears) of the source, while recording only on 2 machines I have come across. My NAK DR3 and a high end Grundig CF5500-2, 3-head deck.
Here is a pics of my NAK DR3 and the Grundig deck which I have referred to: