Unit was plugged in and lights up. I don’t have the ability to test it so selling as is with no returns.

Up for sale is a tested and inspected DBX CX3 preamp. All circuit boards were inspected for faulty components and cleaned of dust/debris. Volume knob was reconditioned electronically and mechanically. Specifications:Input SensitivityPhono (MM) 2.5 mV(MC) 0.25 mVLineMaximum Input SignalPhono (MM) 180 mV(MC) 18 mVInput ImpedancePhono (MM) 47 k-ohms(MC) 100 ohmsLineFrequency ResponsePhono (MM) 20Hz - 20kHz (+-0.25dB)Line 10Hz - 50kHz (+0, -3 dB)Signal to Noise Ratio (IMF-A)Phono (MM) >78 dB(MC) >70 dBLine >105 dBTotal Harmonic DistortionPhono (MM) <0.01% (20Hz - 20kHz,3V)(MC) <0.02% (20Hz - 20kHz,3V)Line <0.008% (20Hz - 20kHz, 5V)Maximum Output Level 10 V (20Hz - 20kHz)Output Impedance 600 ohmsTone ControlBass +-10dBMid +-10dBTreble +-10dBLoudness +8dB (100Hz)Surround SectionDolby Surround delay time: 20msTHD: <0.02% (1kHz)Power Requirements 120/220/240 VAC,50/60 Hz, 11 WDimensions (W x H x D) 18-3/4 x 4 x 12-5/8Weight 15.7 lbs

Super nice item powers on and all knobs and buttons work perfectly!

This DBX BX3MKII and CX3MKII Power Amplifier and Preamplifier Combo is a rare find that will surely enhance your home audio experience. The brand DBX is known for producing high-quality audio equipment and this model is no exception. With its sleek design and impressive specs, this power amplifier and preamplifier combo is perfect for audiophiles and music enthusiasts alike. The BX3MKII model boasts a powerful performance that will make your music come to life. The CX3MKII preamplifier, on the other hand, ensures that your audio signals are clean and free from distortions. Get your hands on this rare gem and take your home audio to the next level. All working and sounds incredible! Gorgeous too! Double boxed shipping! See photos for specs.