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By Fezz

Lybra MK2

Parallel single-ended 300B integrated amplifier

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Finish — Black Ice

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Not currently available

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Coming soon

  • 15 W per channel

    Parallel single-ended Class A circuit using four 300B output valves.

  • Automatic bias control

    Valve operating-point adjustment and delayed startup.

  • Two expansion slots

    Compatible optional Fezz modules extend source connectivity.

  • Direct-input integration

    Three RCA line inputs plus a dedicated Direct input.

Product details

Fezz Lybra MK2 is a stereo integrated amplifier using two directly heated 300B triodes per channel in a parallel single-ended Class A circuit. Its four 300B output valves and three 6SN7 valves provide a rated fifteen watts per channel through Fezz’s toroidal output transformers.

Revised circuitry and automatic bias

The MK2 signal path is accompanied by automatic bias control and a delayed-startup system. A two-minute pre-heating cycle prepares the valves for operation. Four- and eight-ohm loudspeaker connections provide load-matching choices, while the manufacturer specifies a 6 Hz–34 kHz signal bandwidth.

Inputs, control and modular additions

Three RCA line inputs accommodate analogue sources, with a Direct input for an appropriate external preamplifier and a subwoofer connection for system expansion. The supplied remote and protective valve cage complete the standard package. Two extension-board slots accept compatible optional modules. Black Ice, Big Calm, Burning Red, Evergreen, Moonlight, Republika and Sunlight finishes complement different listening spaces.

Specifications

Type
Stereo integrated valve amplifier; MK2 generation
Circuit
Parallel single-ended Class A
Rated output
2 × 15 W
Output valves
4 × 300B; two per channel
Driver valves
3 × 6SN7
Output transformers
Fezz toroidal design
Speaker connections
4 Ω and 8 Ω taps
Inputs
3 × RCA line; 1 × Direct
Subwoofer output
Included
Bias adjustment
Automatic
Startup
Delayed activation; two-minute pre-heating cycle
Signal bandwidth
6 Hz–34 kHz
THD
<3% at 1 kHz / full output
Expansion
2 extension-board slots; modules separate
Power consumption
225 W
Included
Remote control; protective valve cage
Finishes
Black Ice; Big Calm; Burning Red; Evergreen; Moonlight; Republika; Sunlight

Dimensions

Dimensions with valves
420 × 380 × 226 mm
Net weight
23.5 kg