Date Region Description Price Seller
UKDonner once again punch way above their weight with thi...$35.20
USADonner Harmonic Square Octave Pedal – Excellent Conditi...$29.00
UKHad from new, fully functioning ![Donner Harmonic Squ...$27.86
USAHas some cosmetic wear, otherwise functions perfectly a...$50.00
USA Previously Owned Donner Harmonic Square Octave Pitch S...$29.99
USAVery nice. Prior owner added W and D in marker to make ...$38.00
USA[ Octave Guitar Pedal ] With 7 shift types an...$35.00
USAAdd octaves above or below your guitarCreate detuned / ...$45.00
USASelling my Donner Harmonic Square pitch shifter/octave ...$39.00
UKThe Donner Harmonic Square is a highly versatile, budge...$53.22