From what I have found on that, it appears to be a level up from my A4010S which is also a 2 channel. Also, there are only 2 meters and usually 4 channel have 4 meters.
2 channels, 4 tracks. ( 2 for reverse play, 2 for forward play ). Records on the 2 record tracks only in forward. Nice older built-like-a-tank Teac deck though, if it's in decent shape.