At this point in time, I own about 20 guitar pedals made by Donner, a few of their Pedalboards and the Donner DP 2 Guitar Pedal Power Supply. The Donner DP 4 Power Supply is a nice upgrade from the DP2 & DP3. In short: I’m very happy with this one as well and it will have a nice long life in my studio.
My thoughts:
The Donner DP 4 is a well built and durable power supply. I’ll be using this mostly in my home studio for recording. I really like having the SAG settings/ 4Volt to 9 Volt on outputs 7 and 8. This opens up a whole new territory for overdrive, and distortion pedals. Lowering the voltage on overdrive pedals really changes the sound. I was able to create some nice fuzz, lofi, breaking up speaker kind of sounds and some other cool tones. I’ll be doing a lot more experimenting with these settings.