A collaboration between master Tele player Brad Paisley, and master amp builder Mike Zaite has given birth to the all new Prescription Extra Strength. The new "RX ES" is completely revised from the input jacks to the output jacks and shares no circuits with old RX.
The RX ES design structure is unique for a Z Amp as it uses an EF -86 pentode set up in a post EQ gain layout. This alignment yields a rich harmonic complexity and an almost active response from the tone stack. The RXs dual calibrated inputs allow for sustaining gain in the Hi input, and a rich warm clean in the Lo input jack. The RX ES also features a footswitchable "Overdose" mode, which engages a 3 dB boost for added drive and gain without altering the preset tone, same EQ'd tone just much more DRIVE.
The Stingray, is the result of Dr. Z's second collaboration with country guitarist Brad Paisley. After the success of their first partnership, the RxES, Dr.Z and Brad Paisley wanted to develop an amplifier that offered an additional pallet of tones to work alongside the Prescription Extra Strength. Using the classic setup of a quartet of el84's biased close to true Class A at 30 watts, the new Stingray tips its hat to classic British tones, but like all Dr.Z amps, has its own unique voice. The preamp uses an EF-86, and it has a 12AX7 phase inverter. Tone shaping is accomplished with Volume, Tone, and Cut controls, giving you the ability to dial up a warm tone, but with sweet 3k range brilliance for beautiful upper treble and nice low-midrange control. The output transformer was designed by Ken Fischer (Trainwreck), who also worked with Dr.Z on the Airbrake.