Akai 747 w/DBX question

I own a 224, but haven’t used it in a while. It’s compatible with any line level deck. 

Yes the 224 will but not sure about the Dolby A

The Dolby A seems to be more of a console device. 

I would take a pass on the dbx unit. If you really feel you need noise reduction would look at one of the pro units, dolby A 363, or a Dolby SR unit.

Other three options would be
1. get a set of half track heads for your 747
2. install a Vishay foil resistor at the loading position on the PCB where the signal from the head first goes to the board.
3. replace the wire from the head to the PCB with Mogami Console wire.

items 1-3 above will each reduce (increase S/N ratio) by a few db at 7.5 ips tape speed. 

@johnss

i have ave heard of the Doing the Vishay. Have not pushed it however. I’m not having a problem with much noise since I have been recording at 7.5. At the faster speed my recordings sound much much better. I was interested in the DBX mainly to get the bump on dynamic range which also by proxy reduces the noise however like I said the faster recording speed definitely improves things for sure. The Dolby A I think would improve the highs. The lower octaves are fine. I am also considering having re-capping the deck. It’s probably time since they have never been replaced or st least not since I have had the unit. I just feel that the highs have dropped off a bit. Not really a fan of demagnetization. There are two camps on that topic and it seems to be a little dangerous for me to try it myself even though I do have a demagnetislzer. Your thoughts on that.