Z40+

About the Z40+

The LTA Z40+ Integrated Amplifier combines the acclaimed ZOTL40+ Reference power amplifier with a Berning-designed preamplifier and LTA's digital control system, all housed in a Fern & Roby-designed chassis. It delivers up to 51 watts per channel, ideal for speakers with sensitivity ratings of 85dB or above, and can drive speakers down to 80dB for less critical listening or smaller rooms. The amplifier uses four KT77 or EL34 output tubes and includes 1 balanced XLR input, 4 RCA inputs, and a stereo subwoofer output (mono option available). The Z40+ features a push-pull Class AB amplifier design with transformer-less ZOTL technology, providing dynamic presence, low noise, and a 3D soundstage with precise imaging. It includes brass touch-sensitive front panel controls, dual headphone outputs (Hi/Lo), and an optional MM/MC phono preamplifier configurable via a digital menu. The Plus+ version adds 100,000µF of additional capacitor storage, non-magnetic Audio Note tantalum resistors, premium copper foil coupling capacitors, updated volume control with adjustable gain and "Hi-Res" settings, and a subwoofer output. The amplifier weighs approximately 18 lbs and measures 17" wide, 5 1/8" tall, and 18" deep.