Pyle PDC22 is a necessity if you are looking for the higest quality of sound, with low distortion, noise, and eliminate ground loops. A DI unit, DI box, Direct Box, Direct Input, Direct Injection or simply DI is an electronic device that connects a high impedance, line level, unbalanced output signal to a low impedance mic level balanced input, usually via XLR connector. DIs are frequently used to connect an electric guitar or electric bass to a mixing console's microphone input. The DI performs level matching, balancing, and either active buffering or passive impedance bridging to minimise noise, distortion, and ground loops. DIs do not perform impedance matching. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.
Its price is not indicative of its quality. It is not as expensive as others but it is just as reliable and very useful. We have been using these units and they have stood their test of time. (Posted on 6/8/2016)
These things are mechanically built like a tank. All solder connections are solid and doing an audio sweep of the units show frequency response reasonably close to what is published in the manual and well within the limits needed for commercial sound reinforcement.
The only issue found was noisy attenuation switches. Of teh four (I have two units), one cleaned up after sliding it back and fourth a few times, and the other - if it were used at a concert - would send the system, house, and monitor engineers (and pretty much every one else in venue) running after you to clobber you because of the noise it caused. I will chalk it up to cheap switches and personally just bypassed the switches on the noisy unit via a soldered in jumper. (I only intend to use that unit for acoustic guitars so 0db padding is all I will ever use anyway.)
Overall a great box, but had to give them only three stars due to the switch failures (one being catastrophic that would be a nightmare at a show and potentially damage house drivers if not properly limited). (Posted on 6/8/2016)