Open Box Electro-Harmonix 5MM 2.5W Guitar Power Amplifier Level 1

This is an excellent solution for having a power amp attached and powered by your pedalboard. I run a rechargeable pedalboard, and it powers this little power amp with no problem. Most other pedalboard amps require to use of a separate power supply, which defeats the purpose to some degree.

Here's my signal chain-Danelectro Hodad Baritone (with 90-20 bass strings tuned a whole octave down)-Caline English Man Distortion-Caline Blue Ocean Delay-ELECTRO HARMONIX 5MM-Kustom Defender 1x12 cabinet. The pedal is powered by a phone bank (5 volts) boosted by a VHT Vooster (voltage booster.) Also, a 9 volt battery can be used to power the 5mm with an adapter cable. This is the best sound I've been able to get with a 9 volt amplifier. I have a Blackstar Fly 3 that is great but it only has 3' speakers and it takes six AA batteries. This 5mm, along with the other two pedals, a six plug jumper cable, a VHT Vooster (to boost voltage from a phone bank) and a phone bank back up battery can easily be put in the back of the Kustom cab or in a guitar case/gig bag etc. and lugged about like a suitcase and played anywhere. Want to play for longer? Carry a couple extra phone banks. The 5mm is LOUD, powerful, and smooth and sounds great with the English Man distortion driving it, very Marshall-like. This is the least expensive solution for busking or playing outdoors and it makes a great bedroom amp also, plug it right into a One Spot with all your other pedals or use the included adapter (not needed if you have a one spot.) So, the EHX 5mm is the least expensive, smallest, most efficient amp, it's really simple and sounds really sweet, and it's loud for it's size. I recommend it. Hopefully EHX will make something like this with a few more features, like a balanced line out/headphone jack, aux jack, on/off switch, and maybe even other features like a tuner, on board overdrive/boost, delay/reverb. Highly recommended as it is.