News
April, 2011
- ZH-230 reviewed by Dick Olsher in The Absolute Sound (TAS210) »
February, 2010
- ZH-230 dual 30-watt tube amplifier based on ZOTL Technology.
- Pre One tube preamplifier with ZOTL Technology.
October, 2009
- Quadrature Z wins Hi-Fi+'s "Power Amplifier of the Year 2009".
January, 2009
October, 2008
October, 2007
- Introduction of Quadrature Z 200-watt ZOTL monoblock Power Amplifier
- New website
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