WEZO ME-18 Harp Amp


Replicate the Chicago blues harmonica sounds heard on great old recordings.


Inspired by the legendary Masco ME-18  public address amp from the 1950s, a model we have restored for many harp players with great results.  This classic amp has been reinvented into a more powerful package that includes all our proven harp mod technology, and built with rugged point to point construction.  We call it the WEZO ME-18. 

Are you tired of fighting feedback?  Are you looking for more bottom end, does your amp sound too sterile?  If you want a versatile blues harp amp of the finest quality, with the sound and killer looks to go with it...  then look no further! We offer you different versions of this same basic design, that will work for players at any level.

All models feature old-school point to point construction for two reasons.  The most important benefit of not using a circuit board is that you can put the components exactly where they belong, so that the amp background hum and noise will be greatly reduced and the circuit will be much more stable.  The other reason to avoid circuit board construction is because they can overheat, and it's harder to service.  ALL the components are chosen strictly for their specific tone contribution, from the transformers to the type of interconnect wire, this makes a difference!

The power amp in the WEZO ME-18 starts with two push-pull 6L6GC power tubes fed by a 5U4 power supply to produce 30 big watts.  Our build features a large Mercury power transformer and custom multi-tap output transformer.  Other features include a three way off/standby/on power toggle switch, cabinet voiced line-out jack, dual speaker outputs, two speaker impedance options, and a ground lift switch. 


The control panel  starts with a single input jack and HI/LO impedance switch for matching any unbalanced microphone.  The TONE control also features a pull FAT switch, the down position is cleaner or pull the knob for a thicker Chicago honk. VOLUME control has a gain boost pull switch, for earlier breakup or to enhance weaker microphones.  Variable POWER control from 15 watts (one power tube) to 30 watts (both power tubes).  The PAD control, an exclusive feature on MegaTone Amps, allows you to trim the intensity of the power tubes to alter the amount of compression and control feedback.  

We Sell Direct !!



​Single 10 combo, tenderized Jensen Jet Tornado speaker, black shadow cabinet   
11d x 17w x 16.5h inches       31 lbs.


Single 10 combo, tenderized Jensen Jet Tornado speaker, silver cabinet 

11.5d x 18.75w x 19h inches   32 lbs.



Vintage HP big-knob head  

has many of the features found in the above versions - at a fraction of the price!
6w x 12h x 14d  inches  16 lbs.  


Compact black finish head  

Includes all the ME-18 features
10w x 8h x 6d  inches  12 lbs.  


Solid Hardwood dual 10 combo  

Eminence Red Fang Ceramic speakers
22.5w x 18.5h x 11.5d  inches  48 lbs.  


​Power 6-outlet strip installed in the back of cabinet $75

Full tube compliment and fuse kit with Tuki pouch $139
mounts inside your cabinet like a spare tire

The Black Shadow Single 10 Combo


 Tubes:  5U4GB rectifier  6L6GC x 2 power tubes  12AT7 phase inverter  6BL8 preamp/buffer tube 


Our deceptively simple control panel




Spare Tube/Fuse Kit


Full compliment of tested, matched, and burned-in tubes and spare fuses that are contained in a padded Tuki pouch. 

The Secret Ingredient


We use a special 6BL8/ECF80 new-old-stock pentode/triode type preamp tube in our amp circuit to enhance harmonics.

The Silver 10th Aniversary Single 10 Combo


Solid Hardwood Tenth Aniversary Dual 10 Combo

Flame Maple & Sapele wood construction.




Cabinet crafted by Matt Kosma 

 custom made leather handle


Dual Red Fang Ceramic tenderized speakers

H.P. Big Knob ME-18 Head


  • The big knob controls volume
  • Left knob controls tone and has pull fat switch
  • Hi-Lo input jacks
  • Gain boost toggle switch
  • Right knob controls anti-feedback w/pull half power switch
  • Each one unique, they vary in cabinet color and condition
  • Click here for more information


Includes this custom Tuki cover


  • Lightweight aluminum chassis       
  • point to point construction

Compact Black Head


 Super Compact Unit Weighs Just 12 Pounds ! 


Cabinet has black wrinkle paint finish


Rear panel contains fuses, power/ground/speaker impedance switches, speaker and D/I jacks


Mike "WEZO" Wesolowski

 A gifted harp player from North Carolina, Mike has been playing and teaching blues harp for over 30 years. Heavily influenced by such great players as Paul Butterfield, James Cotton, Jr. Wells, as well as modern harmonica icons like Kim Wilson, William Clarke, and Rod Piazza.  Wezo knows great amplified harp tone, he is an avid collector of vintage amps, and is a Seydel Harmonica Endorsee. 

 currently performing with  "The Jamie Trollinger Band" 

Studio Recording Featuring The ME-18

The back story on how we got into making harmonica amps:

David Barrett Endorses The WEZO ME-18


David is a master instructor offering many resources available to harp players of all skill levels. Check out the links below to find a wealth of information!