PreSonusBlueTube DP v2 2-Channel Mic/Instrument Tube Preamp

For some reasons the stereo line (TRS) outs of my Yamaha DGX660 are weak and when split into two TS cables in order to feed to my Focusrite Clarette+ Octopre they sounded very noisy to the point unusable. I tried all sort of boxes and cables and nothing worked. I got this unit used, like new. I don't even know whether the tubes exist in it but did see some lights. I have not even turned the "drive" on. It just worked. I used a TRS to TS from the DGX660 to the BluTube, then ran a pair of XLR cables to the Octopre. The sound is clean and strong and sounded like piano. The build is solid. I also have a Persons HP4 (headphone splitter) and it is also solid. I like them both.

Great interface for recording.

I was a little disappointed, but all is good. I purchased a "used like new"in the box and it was missing a power cord. It is a pretty common one though.Had one from an old comcast router. So, no biggie. Otherwise, I would havehad to send it back. Bet someone took the cord and returned the rest.My savings !!!

This thing sounds like a 5,000 dollar pre-amp if you get rid of those crippitycrappity tubes it came with and put some J J's in there instead.what a steal!!!! After the tube change thing is thing is a real bargain, it adds depth, texture and warmth to anything you run through it....voice, instruments.... master tracks....even post-mastering....if you work in the digital samples realm....consider using this thing to add realism to your sample pallette. Alternatively.....in post this thing adds a great deal to tracks that have been squashed by processing......put it in to the blue tube and you'll be surprised what you hear.......i love this thing!!!!!!

I like the unit except for one thing, both channels make a loud hum from the approx. the 3 o'clock position all the way up. When I turn the gain for the channels up to about the 3 o'clock position, the hum starts to be loud. I do not know if this is normal for the unit. I tried a JJ tube and it's the same issue. The tube gain has no effect on the hum, just the gain on both channels. I am going to call support tomorrow to see what they think.I bought the item as a refurb. I guess the refurb was plugging it and see lights come on. :0This refurb is being returned as bad. I went ahead and bought one new. Hopefully it will work fine when I receive it at weeks end.Update: I returned the first one, I got a new one today and it works. It's not quite as noisy approaching the 3 O'Clock position. I am using this with me E-drums. The drum controller output is fine, but I was not getting sound I wanted, I.E. loud, annoy the neighbors loud.

Has a really good sound the tube makes a difference

Warms up the sound of my voice and keyboard -- added in the T-12AX7-S vacuum tube for a slightly warmer sound - works great!

I wanted to like this product but the quality control is sorely lacking.The first unit arrived and the VU meter lights were different colors/intensity. It was subtle but definitely noticeable and distracting. This would maybe be acceptable for a reconditioned unit or a secondhand item but not for a brand new item.The replacement unit had a fault where the left VU meter would show a large deflection (proportional to gain) with no input attached. The right VU meter behaved as expected.I gave up at two attempts and bought an ART PRO MPA II instead.