the AES sixpacs do
It appears that both the Rocket 88 and the SLM-100, while sold stock with 6550's, can accomodate EL-34's. I've just purchased an SLM-100, which will provide about 120w in push-pull and 60w in triode mode using EL-34's, per communication with Cary. I plan on using it in triode mode with EL-34's to power Quad 988's. I don't know if it will need any tweaking/modding to optimize its performance with EL-34's, but if so, I will work with a local audio engineer and Cary for advise on mods. It was already modded by Cary to add an external pushpull/trilinear switch and oil filled caps. Any other suggestions to optimize its performance with EL-34's?