I had the 15ohm Rodgers LS35a as ell as the esl-63s. If you are looking for similar sound but more frequency extension, the Harbeths are a very good choice.
As you already have a large speaker (esl-63) I suggest that the Harbeth 40 is the model that would make a significant difference. Sonically the 30.1 is smaller; to put it simply, a concerto for string orch will sound slightly larger with yr 63 than with the 30...
BUT, both Harbeths need amplification I don't think you have at this moment. IIRC the Paoli mono's excel in high frequency reproduction -- but they don't have much power.
Try a Mahler 2 5 or 8 on the Harbeth 40 driven by any top quality, medium powered SS amp (100+W, or ~50W class A) and you will be pleasantly surprised I think.
I suggested a good SS amp as there are many more of these around and they are usually cheaper, than tubes...
As you already have a large speaker (esl-63) I suggest that the Harbeth 40 is the model that would make a significant difference. Sonically the 30.1 is smaller; to put it simply, a concerto for string orch will sound slightly larger with yr 63 than with the 30...
BUT, both Harbeths need amplification I don't think you have at this moment. IIRC the Paoli mono's excel in high frequency reproduction -- but they don't have much power.
Try a Mahler 2 5 or 8 on the Harbeth 40 driven by any top quality, medium powered SS amp (100+W, or ~50W class A) and you will be pleasantly surprised I think.
I suggested a good SS amp as there are many more of these around and they are usually cheaper, than tubes...