The Lector ZAX-120 solid-state integrated amplifier is built to combine driving power and tonal finesse. It delivers 120W RMS into 8 ohms per channel, up to 180W into 4 ohms, and keeps woofers firmly under control thanks to a damping factor greater than 100, even when the speakers are subjected to difficult loads.

The design is centered around the ZAX platform , developed around a high-voltage (120 V DC) and high-current (±20 A) circuit . Custom-built components were used to achieve these values: high-current, high-voltage input transistors, bipolar output devices with integrated thermal compensation, and a high-energy, low-flux-loss power transformer. The FET input stage creates a wide, smooth soundstage, while the power transistors deliver detailed highs and deep, well-defined bass.

A design choice distinguishes the ZAX-120 from many integrated amplifiers in the same range: the signal path is entirely discrete , without any integrated circuits . The reason is technical and not image-related, because ICs are not capable of delivering the high current that this type of final stage requires. The switching of the five high-level line inputs is done via gold-plated contact relays , to keep the signal intact from the input to the speaker terminals. The equipment is completed by two Rec Out outputs for recording and a passive volume output.

What's the best solid-state integrated amplifier for difficult-to-drive speakers? A device like the ZAX-120, designed specifically to deliver high current to demanding loads, offers a concrete answer: it pairs well with both low-efficiency bookshelf speakers and floorstanding speakers , in medium- to large-sized rooms. The sides are available in solid wood or plexiglass upon request, to match the aesthetics with the decor, while the M version includes a remote control.