The ZEQD-Pre has an EF86 pentode just like Dr Z's sweet high-end amps, and it might just give your rig the analogue warmth, ...

Much like vinyl records, tube amplifiers are still prized for their perceived sound qualities, even though both technologies have been largely replaced otherwise. The major drawback to designing ...

Swap preamp modules in and out and pair them with onboard American-style clean channel for a compact three-channel powerhouse for stage and studio When you purchase through links on our site, we may ...

A conventional tube amplifier has a circuit whose fundamentals were well in place around a hundred years ago, so there are few surprises to be found in building one today. Nevertheless, building one ...

To continue our coverage of AXPONA (you did read part one, didn’t you?), we will look at some of the amplifiers, preamplifiers, DACs, and other assorted electronics sitting between the source and the ...