There is an 3.5mm adaptor bundled with UD-10 for you to plug the adaptor to the HEADPHONE out and use a interconnect cable to TA-10 directly.Since your speakers has 92dB, that's great for this relatively low power amp. TA-10 does work in 4ohm speakers. Current strain is not problem. But, if you are a DIYer, you still can do some minor modification to perfect match the impedance. Just replace several capacitors. If you want, just send your details to [email protected]
. we can tell you which and how.