LAB Highlights
- All - analog 4 - channel tube preamp that adds warm tube sound from a 12AX7 tube to any line - level input source
- Features (3) stereo RCA inputs and (1) 1/8' input on the front panel
- Equipped with a rotary input selector and volume control
- Gold - plated RCA inputs, outputs, and grounding connection
- Metal casing with vibration - damping feet
The PA555 uses a 12AX7 tube running at 150 volts. The input signal connects directly to the tube's grid, and all the gain comes from this tube. The output section has emitter followers to drive the output. It has no feedback circuit or integrated circuits in the audio path, making it all - analog. - Bellari
Key Features
- Tube: 12AX7
- Inputs: 3x RCA stereo + 1/8' TRS stereo jack
- Output: RCA stereo
- Input Impedance: 10K ohms
- Max Output Gain: 11.1 dB
- THD: 0.1%
- S/N Ratio: 103 db, unweighted
- Frequency Response: 5 Hz – 198 KHz +/- 3 db
- Crosstalk: - 75 dB
- Output Impedance: 100 Ohms
- Dimensions: 6' x 2.5' x 5.4' / 15.9 x 5.1 x 17.1 cm
- Weight: 2 lbs / 900 g
Comes With
Using the Bellari PA555 Tube Pre Amp is quite simple. First, connect your audio source to one of the available inputs. You have 3 stereo RCA inputs and a 1/8' input on the front panel to choose from. Then, use the rotary input selector to pick the right input. Adjust the volume using the volume control. Remember, this is an open - box item, and all sales are final. The exterior of the product is in near - mint condition with very light surface wear, but the packaging might be damaged. For maintenance, keep the preamp in a dry and clean place. Wipe it gently with a soft cloth if it gets dirty. Since it uses a 12AX7 tube running at 150 volts, avoid touching the tube when the preamp is on to prevent any electrical hazards. Also, make sure to use the provided power supply for proper operation.
