Quad QC-24 Preamplifier Classic Valve Design Meets Modern Functionality The Quad QC-24 preamplifier embodies Quad's commitment to high-fidelity sound, combining classic valve design with modern functionality. Utilizing a single 6111 twin triode valve, the QC-24 delivers a pure, uncoloured signal path, adhering to the philosophy of "a straight wire with gain." Superior Audio Performance With a frequency response extending from 5Hz to 50kHz ( 0dB/-0.5dB), the QC-24 ensures accurate reproduction of audio signals across the full spectrum. The total harmonic distortion (THD) remains below 0.2% at 1V RMS, maintaining the integrity of the original recording. Hum and noise levels are kept to a minimum, better than -80dB, ensuring a clean and quiet listening experience. Versatile Connectivity The QC-24 offers five line-level inputs, accommodating various audio sources such as CD players, tuners, and auxiliary devices. Additionally, it features two buffered tape loops for recording and playback. The preamplifier provides both fixed and variable line-level outputs, allowing for flexible integration with power amplifiers and other components. Feature Details Valve Complement 1 x 6111 twin triode Total Harmonic Distortion <0.2% @ 1V RMS Frequency Response 5Hz – 50kHz ( 0dB/-0.5dB) Hum and Noise Better than -80dB Line Stage Gain 15dB Recommended Minimum Load 50kΩ Inputs 5 x Line level, 2 x Buffered tape loops Outputs Fixed and Variable line-level outputs Power Consumption 15VA maximum
