The Bellari PA555 Tube Preamplifier | High-Quality Audio Preampis a tube preamplifier for line-level sources including DAC, phono stage/pre, CD players, and mobile devices. It sports three sets of stereo RCA inputs and a 3.5mm input for computers, smartphones, and other appropriate sources. With the onboard switch, you can choose among the inputs and route them to the stereo RCA outputs.

The PA555 uses a 12AX7 tube running at 150 volts. The input signal is connected directly to the grid of the tube, resulting in all gain from the 12AX7 tube. The PA555 has a no feedback circuit or integrated circuits in the audio path; it is a direct, all analog signal path. The Rolls Bellari PA555 includes a 15V power supply.

12AX7 Tube    3 x RCA Inputs in Stereo Pairs    1 x 3.5mm Stereo Input Jack    2 x RCA Outputs (Stereo Pair)    Level Control Knob    Includes 15V Power Supply

Related Questions and Answers

Q: 1. Hi , can use and record for instruments too?

A: Yes you can. It functions as a mic pre and a direct box. So you can use it on a mic or an instrument.

Q: 2. Does thr PSU attach to the back of the microphone? If not, what is the finned "box" shown in the pictures? Does the AC input use a standard IEC female plug? Thank you!

A: The finned box on the back of the Warm Audio WA-8000 Large-Diaphragm Multipattern Tube Condenser Microphone is an external cooling assembly that helps to maintain the optimal operating temperature for the 6AU6 tube and prevents the mic from overheating by allowing the heat from the tube to dissipate through the fins. The included external power supply unit does use a standard IEC cable with a female connector which is also included in the package along with a 7-pin microphone cable, a shockmount, and a hard shell carrying case.

Q: 3. Does this work with a Bluetooth adapter line in signal?

A: Yes you can go from the line output of the Rolls DU30b into a bluetooth transmitter.

Q: 4. Is this the correct Fethead for the Deity S-Mic 2S? Or should I be getting the regular Fethead? (The S-Mic 2S is a phantom powered mic, but even still this isn't clear).

A: This is the correct model.

Q: 5. I want to use it in Korea. 110v? 220v? Please check the voltage.

A: At this time, we can only confirm the unit as a 120v device. For use in Korea, would we recommend the use of a set down voltage transformer.

Q: 6. This portable? The included external power supply AC or Dc ? If this power supply is Ac, what do I need or use for remote field operation?

A: The PreSonus BlueTube DP v2 requires 12VDC to operate. Power adapter is included. The unit is not designed for field use.

Q: 7. I'm using Cubase as DAW and Fireface UC . Can I connect Art TubeOpto 8 to Fireface and control/record all to Cubase?

A: Yes you can. I recommend attaching the Art via the ADAT out optical port to the ADAT in port on the FireFace. That will send all 8 channels digitally to the FireFace for recording into Cubase.

Q: 8. How can I / Can I blend the two XLR signals into ONE send to a mixer? Example: Two input mics on a snare (top/bottom) into ONE send to Logic.

A: You may use two dynamic microphones (i.e. SM-57LC) in to a mic combiner (IMCOM) and be sure to get an inline XLR phase reversal barrel to flip the polarity on one of the mics.

Q: 9. Is the Art TubeOpto configured for 230 V when it's sent to Europe?

A: I had the Art TubeOpto sent to Australia and it was not configured for 240 V so I am using a power transformer to use it.

Q: 10. Has anyone had any luck using this Bellari PA550 to connect a turntable to an older iMac circa 2012?

A: There is no digital / USB conversion on this pre amp. You would need an interface to connect it to a computer.