First, Sea, SEARCH for this; I believe you'll find lots of info. I recommend the c-j Premier Eleven-A. At 70 WPC it has plenty of power. I had one and loved it but wanted triodes. I'm now driving my 989s in my fairly large room (21 x 19 x 9') with about 40 watts, and member Peter S is driving his 988s with 45-Watts-in-triode Cary SLM70s.
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