MZ2
HEADPHONE AMPLIFIER, PREAMP, & STEREO AMPLIFIER
USER GUIDE
Linear Tube Audio
Takoma Park, MD, USA
WARNING: For safety, the cover of this amplifier should be secured at all times.
DC
voltages as high as 450V and peak AC voltages as high as 800V are present inside. The service
information contained in this manual is intended only for trained service personnel. Furthermore,
this amplifier generates radio-frequency energy that can interfere with communications
equipment.
Quick Start Guide
-Remove the amp and power supply from the box and bags.
-Plug the AC cable into the power supply and into an outlet.
-The DC cable has locking connectors on both ends*. You should screw it securely onto the threads of the
DC jack.
-Turn on the power supply using its toggle switch (if you are outside the US, make sure the voltage is set
correctly on the linear power supply, which is visible directly above the IEC connector).
-Turn on the amp with the power button on the faceplate. You may want to attach interconnects or
speakers before powering on, but it isn’t necessary. If you are using the MZ2 as a preamp, it is best to
have your power amp off (and
necessary to have it off if it is a DC-coupled amp
) when powering on
and connecting the MZ2, to avoid off/on transients.
Please read this entire guide if using a DC-coupled
power amp.
*Earlier versions of the cable have no locking connectors or locking only on one side
Introduction
The MZ2 is a high quality Class A tube headphone amplifier utilizing ZOTL (Zero-hysteresis
Output Transformer-Less) technology. Additional uses of MZ2 include tweeter amplifier,
preamplifier, and high-efficiency speaker amplifier recommended for small rooms or desktop
setups.
Features
•
External power supply – extremely low noise floor
•
More than enough power for most headphones
•
Drives all types of dynamic and planar headphones of any impedance
•
Drives speakers to adequate volume with 1watt output (small room) if speaker sensitivity
is 93db efficiency or higher, for critical listening 98db or higher is recommended.
•
Transparent top cover
