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ZOTL10 Mk.II
USER GUIDE:
Linear Tube Audio
Takoma Park, MD, USA
301-448-1534
hifi@lineartubeaudio.com
WARNING: For safety, the cover of this amplifier should be secured
at all times.
This amplifier contains extremely high voltages and the user should
not attempt to service the amplifier.
Furthermore, this amplifier
generates radio-frequency energy that can interfere with
communications equipment.
Introduction
The ZOTL10 is a Class AB tube amplifier utilizing ZOTL (Zero-hysteresis
Output Transformer-Less) technology. It is designed as a power
amplifier, but has a volume control in order to be used directly
from high-output sources.
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Summary of Contents for Linear Tube Audio ZOTL10 Mk.II
- Page 1 ZOTL10 Mk.II USER GUIDE: Linear Tube Audio Takoma Park, MD, USA 301-448-1534 hifi@lineartubeaudio.com WARNING: For safety, the cover of this amplifier should be secured at all times. This amplifier contains extremely high voltages and the user should not attempt to service the amplifier.
- Page 2 7. Linear Tube Audio reserves the right to improve or change its products without obligation to modify previously manufactured units.
- Page 3 Specifications Circuit Type: Push-Pull Class A Power Output: 12W (4 Ohm), 10W (8 Ohm) Input Sensitivity: 1.2V RMS for full output Input Impedance: Output impedance: 1.2 Ohms Preamp Output Impedance: 50 Ohms Gain: 18dB (8 Ohm load) Noise: -94dB Frequency Response: +0, -0.5dB, 6Hz-60kHz (8 Ohm Load) THD: 0.5%...
- Page 4 Quick Start Remove amplifier, power supply, and included cables from the box. Attach the AC umbilical cable to the power supply and amplifier. Be sure to tighten the cable’s locking connectors. Check that the Stereo-Mono and Direct-W/Vol switches (see Operating Modes for more information) on the back are in the correct position for your setup, and that your interconnects and speaker cables are hooked up to the appropriate connectors.
- Page 5 Operating Modes DIRECT: RCA inputs go directly to the amplifier, bypassing the volume control. W/VOL: RCA inputs go through a volume control, adjustable via the front panel knob. Stereo/Mono Switch: Two ZOTL10 amplifiers can be operated as mono-blocks, which deliver approximately 1.7x the power into 8 Ohms.
- Page 6 Tubes The ZOTL10 Mk.II is supplied with selected vintage tubes. The tubes operate at low current, which allows them to have an extended life. Changing tubes: EL84: The power tubes are self-biasing and do not need to be matched for gain.
- Page 7 NOTES...
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