QUAD 33 / 303 - new version of the legendary solid state amplifier

Quad 33: Tradition meets innovation The Quad 33 preamplifier combines tradition and innovation in an outstanding way and offers maximum precision and excellent sound quality. It features digital microprocessor control, but remains largely true to its classic analogue design. The integrated LCD display and illuminated controls offer modern user-friendliness. A precise, motorised ALPS potentiometer is used as the volume control. Acoustic fine-tuning is provided by the patented Tilt Control, which makes it possible to adapt the sound to the room acoustics and the user's preferences without distorting the natural character of the music. Other functions such as bass and balance controls extend the versatility of the device. The preamplifier offers a wide range of analogue inputs: three RCA inputs, one balanced XLR input and the newly developed phono input for MM and MC cartridges leave nothing to be desired. Two cinch outputs (1x pre, 1x aux) and a balanced out are available.

Quad 303: Power and precision The new Quad 303 power amplifier remains true to the original and utilises the ‘symmetrical triples’ transistor configuration developed by Quad founder Peter Walker. This unique technology provides improved control of the output stage, minimising distortion and increasing the reliability of the amplifier. With an output of 50W into 8 ohms (70W into 4 ohms) and a maximum current output of 10A, the Quad 303 can drive even the most demanding speakers with ease, including the legendary Quad electrostats. In bridged mode, the amplifier even achieves an output power of 140W into 8 ohms or 170W into 4 ohms. The specially developed 200VA toroidal transformer ensures high efficiency and a stable power supply, while the Class AB design ensures that the power amplifier remains cool and stable even under high loads. The 303 can be driven via both RCA and XLR and also offers a 12V trigger input. The robust housing with CNC-machined heat sinks on both sides ensures outstanding heat dissipation and durability. Translated with DeepL.com (free version)