Yes, ditto on the ME60, 1/3 octive from 25hz to 20K. I picked one up a few years back to replace my ailing Altec 729A Acousta Voicette, that I had in continous service for 30 years. After Iratec brought the 729A back up to spec, along with a couple upgrades, I've gone back to it. 1/3 octive from 63hz to 12500. I like that it takes out, and does not boost, then compensates with a broadband reinsertion gain. BUT, just try to find one of those in good operating condition.