PreSonus Blog

Attack of the Rev. 2!

June 22,2012

Last autumn, PreSonus released V2 updates of our popular TubePre and BlueTube DP microphone/instrument preamps. With preamps so beloved, our intention wasn’t to completely re-create either of these products, but rather to refresh them and bring them more in-line with our current offerings.

PreSonus BlueTube V2

 

By now, most of our loyal customers are very familiar with our popular XMAX preamp design. This circuit is employed on nearly every current interface product and, of course, our award-winning StudioLive-series of digital mixers. A little known fact is that both the TubePre and BlueTube DP preamps use early versions of what would eventually become the XMAX microphone preamp. Over time, this circuit has been tweaked and perfected into the XMAX mic pre our customers know and love. The biggest change to both V2 models was to update their preamp circuits to the current XMAX design.

Because of the updated preamp design, both V2 models feature new extended Gain Ranges: -15dB to 85dB (Mic) / -30dB to 50dB (Inst) as compared to 0dB to 60dB on the older models. Another consequence of changing to the current XMAX preamp design is increased headroom.

PreSonus TubePre V2

The original TubePre featured a -20dB pad; however the XMAX design we use today offers so much headroom that attenuation pads are simply not necessary. With the TubePre V2, the pad was removed and an input select switch was added. This allows the user to leave both their microphone and instrument connected at the same time, making it an even more convenient tool for home recording enthusiast and professionals alike.

It should be mentioned that the version of the circuit in the BlueTube DP is closer to the current XMAX design in this regard. This is why the BlueTube DP had no attenuation pad to remove.

Other changes in the V2 models are as follows:

  • Both V2 Models also feature a new VU Meter design that is more brightly lit than either V1 model.
  • Both V2 models feature a new industrial design that adheres more closely to our current products.
  • Both V2 models were given a new lower profile power supply to free up valuable surge protector real estate.
  • The orientation of the BlueTube DP’s Tube Drive and Gain controls was changed to match the Tube Pre (Tube Drive on the left, Gain on the right) for consistency and ease of use for those customers who purchase both products.

We hope you all enjoy employing these products as much as we enjoyed engineering them! Please feel welcome and encouraged to share your recordings featuring these products on our Facebook wall.

Category TubePre V2 | 2 Comments »
Posted by Queen of All Things Technical



  • http://tes3t.com benwalton z

    My name is Ben.

  • Chris Lilley

    Thanks for the clear explanation! “new extended Gain Ranges: -15dB to 85dB (Mic)” so better gain control range than the -15 dB to +65 dB on my PreSonus 44VSL, then? Would I get less hiss at high gain when miking quiet, acoustic instruments? Wondering about adding a BlueTube V2 – but aim is higher gain and less noise, not ‘tube warmth’ ans tube saturation. Confused, as both are XMAX.