Most AMPs that I know so far offer a full-size Balance Input and RCA - None offer 2 Single-Ended input.
Upgrade Path will Be once Zen CAN discarded : (Inside India)
(1) SMSL SH-9 (24999/-) <---- Cheapest THX Amp with lots of Goodies (Screen, Remote) but this contains not an actual Balance Circuit, Despite that, I have high hopes for this but the Heat Generation which leads to cut off the AMP is a serious flaw in my consideration.
(2) SMSL SH-8s (22999/-) <----- Why bother when SH-9 presents at the market...no Modern Features*
(3) Topping A30 Pro (29999/-) <------ One of the kind, most time refer as poor man's A90.....Highly recommended one if the user doesn't look at Modern Features*.
(4) Gustard H16 (39999/-) <------ Those who got seems pretty happy and contained with its performance.
*Modern Features = Screen/Display/Remote