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Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube

Item #: 
12747416308929062
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The PreSonus BlueTube DP Stereo Preamp is among the most versatile two-channel mic and instrument preamps in its class. Its Dual Path technology lets you choose between two preamp stages: a transparen... Click To Read More About This Product

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Overview

The PreSonus BlueTube DP Stereo Preamp is among the most versatile two-channel mic and instrument preamps in its class. Its Dual Path technology lets you choose between two preamp stages: a transparent solid-state or warm tube preamp. Each gain stage of the BlueTube DP is pure Class A with high headroom.

Each channel of the BlueTube DP includes a -20dB pad, polarity reverse, 80Hz filter, and +48v phantom power. On the front panel you'll find controls for solid state gain and switchable on/off tube drive. When the tube drive is off, the tube preamplifier stage is bypassed delivering ultra-quiet and transparent solid state preamplification.

Large analog VU meters provide precise visual monitoring. Dual Neutrik combo jacks for microphones or instruments provides quality I/O and make the BlueTube DP great as a DI for electric bass and guitar.

FEATURES

  • Stereo microphone/instrument preamp
  • Dual Class A gain stages
  • Tube drive from 12AX7 tube
  • Neutrik XLR and 1/4" High-Z combo input connectors
  • Neutrik balanced XLR/TS 1/4" outputs
  • 20dB pad, polarity reversal, and 80Hz filter on each channel
  • 2 illuminated analog VU meters
SPECIFICATIONS
Input
  • Connector Type: Neutrik combo
  • XLR Impedance: 1.3K Ohms
  • Hi-Z, 1/4": 1 Meg Ohms
Output
  • Connector Type: XLR and 1/4" TS
  • Impedance: 51 Ohms
Panel Controls
  • Gain: 0dB to +54dB
  • Tube Drive: 0% to 100%
  • Phase Reversal
  • -20dB Pad
  • Phantom Power
Meters
  • Analog VU: -2odBu to +6dBu
  • Clip Indicator: +22dBu
Performance
  • THD Noise (unweighted) solid state: < 0.005%
    THD Noise (unweighted) tube stage: 0.01% to 30%
  • Signal To Noise: >95dB
  • Power Supply Rejection: >98dB
Physical
  • Weight: 4 lbs.
  • Dimensions: 8"W x 1.75"H x 5"D
  • Mounting: Universal rack tray insert
Power Supply
  • Type: Linear
  • Input: 16VAC / 1000mA
  • Power: 16 Watts
  • Transformer: External
Pro Coverage
MANUFACTURER'S WARRANTY
One year parts and labor warranty.


  • Customer Reviews
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Review Snapshot

by PowerReviews
PresonusBLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube
 
3.9

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

Reviewed by 7 customers

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(7 of 8 customers found this review helpful)

 
5.0

I think I know why some are having problems

By Andrew Z

from Chicago IL

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

I've heard TONS of local recordings done with it and it sounds warm has good cut and sounds great. This is because my friends that have it, know what's up. Now, what I mean by that is simply . . . replace the stock preamp tube with a good quality tube i.e. low noise tubes like something that is usually used in the phase inverter stage of a guitar amp. The best, IMO, are a 12ax7-c or the 12ax7r or r2 (long plate) GIVE IT A CHANCE.

(5 of 6 customers found this review helpful)

 
4.0

Great Portable Mic Preamp

By Bill_W

from Kent, WA

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

I struggled with getting the levels I needed out of my Panasonic AGDVX100a until I got smart and picked up this little preamp. I'm using a Rode shotgun mic and a Samson lavelier. I ran them both through the presonus and I got all the levels I needed without adding any significant noise.Although I've been keeping a very flat solid state boost, I've played with the tube drive and it does help round out the sound. Overall, it's a good value and its portability is perfect for the kind of work I do.

(4 of 5 customers found this review helpful)

 
4.0

Nice Warmth on Vocals...

By Grant Wiscour

from Dallas, Texas

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

I bought this little tube compressor for vocals. The standard effects that come on mixer equipment wasn't getting the sound I wanted. It adds a nice amount of warmth, like a tube should and gives plenty of boost. A good little piece of gear with tubes. It's not the same as spending a thousand bucks on a piece of equipment but it is a nice addition to the PA. I am considering adding another for acoustic guitar.

(3 of 3 customers found this review helpful)

 
5.0

A good affordable Pre-Amp

By Jules

from Orlando, Florida

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

Coming into this one, I really wasn't expecting much. But wow, this pre-amp is really great. The tubes give a guitar a really nice warmth, and even a little clipping sounds good in some applications. For the price, this pre-amp is well worth the money. It's also a nice feature that both channels have 48V Phantom Power.

(3 of 5 customers found this review helpful)

 
3.0

Not good, I didn't hate it.

By QualityGuy

from NY

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

The PreSonus BLUETUBE is a colorless pre-amp that just does a minimum of what a preamp should do. It's tone is just boring and however your mic is, is what this preamp makes it sound like. I would have sold mine, had I ever owned one. If you just want an okay sound for a good price. The bluetube DP is a good way to go, but if you want quality, go for something much nicer. Pre-amps do make the biggest difference in your recordings. The Bluetube just didn't give me great color, just the mic I gave it.(boring) I don't hate it because it does sound okay and better than some other pre-amps. I don't suggest getting this pre if you want your instruments or mic to sound as good as it can.

(3 of 4 customers found this review helpful)

 
2.0

wish it worked as good as it looks

By Steven Smith

from burbank,IL

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

I bought this preamp hopping to increase my recording quality. I own a presonus FP-10 and that works great but I couldn't get anything but a fuzz out of the Bluetube. I have worked with my house DAW(digital audio workstation) for around three years now with sonar and was most displeased when I worked with this product. It didn�ۡ���t warm the sound up. It didn't even add a genuine tub distortion. I recorded with and without the Bluetube to compare and actually found that I had better sounding recordings when I didn�ۡ���t use it. The Bluetube seemed to boost bass(poorly) and kill presence and treb. For the money I don�ۡ���t think its worth it. It just doesn�ۡ���t work it seems. I don�ۡ���t understand how a product like this could even make it onto the market. Did it not go through product testing?

(2 of 2 customers found this review helpful)

 
4.0

very good if you know how to use it

By BlueDOG

from saratoga springs,utah

Comments about Presonus BLUETUBE DP Stereo Dual Path Microphone/Instrument Preamp with 12AX7 Tube:

first I use it for the VOCALS and matched with my EV RE410 MIC - it will turn dull vocals to pro sounding vocals - but be aware you will tinker and tinker until you get the right sound for you - I have no volume, full tube, and all options on including PAD - my mixer is a flat EQ and a slight delay - combined with a excellent mic and my cheapo mackie - it sounds really great live or recorded. Its all about the mic - I would not use it for guitar - buy a nice tube amp - if you are on a budget KUSTOM has a 100.00 tube amp and its not that bad.

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