📌LAB POINTS

• all analog 4-channel tube preamp
• adds warm tube sound (from 12AX7 tube) to any line level input source
• (3) stereo RCA inputs + (1) 1/8" input on front panel
• rotary input selector + volume control
• gold-plated RCA inputs and outputs, and grounding connection
• metal casing w/ vibration damping feet

"The PA555 uses one 12AX7 tube running at 150 volts. The input signal is connected directly to the grid of the tube and all of the gain of the PA555 is from the 12AX7 tube. The out-put section is a pair of emitter followers to drive the output. The PA555 has a no feedback circuit or integrated circuits in the audio path, it is 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

• power supply

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