The difference uis that 1010LT is fully unbalanced and has a breakout cable that terminates in RCA (phono) connectors. The full 1010 has a 19" rack breakout box and outputs are on 1/4" balanced wired jacks. The 1010 is not strictly speaking balanced but it operates at balanced level and accepts balanced inputs so is close enough for most stations.

1010TL is also a fair bit cheaper. We sell 1010Lt at £169+VAT where as 1010 has recently gone up to around £400.

Hope this helps.