Up for sale is a gorgeous, fully serviced and 100% operational vintage Maestro Echoplex EP-4 Solid State Tape Echo (Serial #37214). If you’ve been looking for a studio-ready Echoplex that doesn't need an immediate trip to a tech, this is the one. 
The EP-4 is legendary for its distinct, warm vintage delay, highly interactive Echo Tone controls (Bass/Treble), and its phenomenal built-in recording level compression that beautifully glues your signal path together. 
This unit has just been bench-tested, cleaned, and fully serviced. The motor spins smoothly, the tape transport handles flawlessly, and the echo repeats are strong, warm, and musical. 
Key Features & Upgrades: 
Brand New Premium Tape Cartridge: Just outfitted with a fresh, brand-new replacement tape cartridge ($80 value). No shedding or degraded oxide here—this unit is ready for pristine tracking right out of the box. 
Freshly Serviced: Fully checked out and verified to be in perfect operational condition. Heads have been cleaned and demagnetized. 
Original Footswitch Included: Comes with the rare original circular metal footswitch for remote Echo/Off control 
Cooling Fan Mod: Features a cleanly installed rear-panel cooling fan (see ⁠image.png⁠) to keep the internal motor and electronics running cool during long sessions—a crucial upgrade for the longevity and reliability of vintage tape machines. 
Cosmetic Condition: Fantastic shape for a 1970s unit. The faceplate pattern is sharp and crisp, and the original instruction schematic inside the lid is fully intact and completely legible Tolex shows only minor, honest vintage wear. 
Ships securely packed, heavily padded, and fully insured to ensure a safe arrival. Please review all photos verbatim and feel free to reach out with any questions!