May Birthdays 
Selling my Dr. Z Amplification JAZ 20/40 Head in excellent condition. Black w/ salt-and-pepper grill, this is Dr. Z's best take on vintage Fender tones rolled into one incredible amp!
This amp features a quartet of 6V6 power tubes with a half-power switch to go from 40 to 20 watts, allowing you to size your sound to the room or cut volume for home use. It also has a Master Volume that functions differently than a traditional MV control does - it's more interactive with the Volume and keeps all the tone intact.
Three judicious tone controls let you dial in Blackface tone for days, or you can swing the mids up and get some glorious Blonde/Brown edge-of-breakup sounds happening.
Reverb is awesome - as tasteful or as drippy as you like - and the bias-modulating trem is easily the best I've heard on a modern amp. Swampy and dimensional, with perfect sweep on both controls.
The amp itself is in excellent shape and comes with the original 2-button footswitch and a Studio Slips Clamshell cover (the BEST!)
More specs from Dr. Z's site are below, as well as photos. It'll ship in the original boxes, well packed and protected. Only selling because I'm not gigging any time soon and have a different amp for home use.
TRADED
More photos can be found on Flickr...
Dr Z. Jaz 20/40
The JAZ 20/40 encompasses all your favorite qualities from Dr Z’s most popular models. With the front end of the MAZ series coupled to a cathode biased 4 6V6 output section the JAZ 20/40 is the most feature laden Z amp to date. No need to decide between buying a 20 watt or 40 watt amp. The JAZ 20/40 is both in one box. Like the Dr Z Remedy amp, the JAZ 20/40 has the amazing ½ power switch feature. There is zero change in tone and response when going between the ½ and full power modes. You just get more or less volume. The ½ power switch along with the master volume will allow you to dial the JAZ in for any size room. Sparkling, full bodied clean head room to lower wattage output tube grind…it’s all in there.
Full bias modulating output tube tremolo is on board as well. Output tube tremolo gives you a depth not heard with pedals or opticoupler circuits. You get deep pulsating swells of tremolo from the JAZ. Whether you desire slow and mellow or faster Bo Didley sounds you can dial it in with ease via the speed and depth controls. Add in the tube driven reverb and you’ll be navigating the swamps of the bayou. Speaking of reverb, the JAZ 20/40 reverb circuit has been dialed in to produce a very lush verb. You’ll find it has great depth compared with other single knob reverbs.
The front panel features controls for volume, full EQ, master, speed, depth, and reverb. Around back are speaker outs (4, 8, and 16) and the ½ power switch. The reverb and tremolo can be turned on and off via the supplied 2 button footswitch.
Specifications:
Power Output: 20/40 Watts
Output Tubes: 4 6V6
Preamp Tubes: V1 12AX7, V2 12AX7, V3 12AT7, V4 12AX7, V5 12AX7, V6 12AX7
Rectifier: Solid State
Controls: Volume, Treble, Mid, Bass, Master, Reverb, Speed, Depth
Configurations: Head, 1x12, and 2x10 Combo
Colors: Black, Blonde, Red
Dimensions & Weight: Head: 22 3/4" W, 10 1/8" H, 10" D; 35 lbs
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Last edited: Aug 22, 2016 20:22:46
