[Photo] Mark Levinson No. 300 series power amplifier

With the continuous development of speakers, their requirements for amplifiers are getting higher and higher-and will show the shortcomings of poor design without mercy. Mark Levinson No. 334, No. 335 and No. 336 dual mono post-stage condensed thousands of hours of design, listening and testing, as well as materials and technologies that were originally used only on No. 33 and No. 33H .

No. 334, No. 335 and No. 336 are the second generation of the 300 monophonic series and are directly related to No. 331, No. 332 and No. 333 respectively. They have made considerable technical improvements in the design of Mark Levinson, which was previously used as a benchmark for sound effects. These improvements affect almost every stage of the amplifier, and improve the sound and durability of the equipment.

The voltage gain stages are all fully balanced design, the circuit layout inside is completely from No.33 and No.33H. In the design of the new 300 series, with the use of the circuit board material Cyanate Ester, the advantages of the original circuit are brought to the extreme. Because the circuit board has a lower and more stable dielectric constant, it provides much better isolation than ordinary materials. Thanks to its stable characteristics, the performance of the amplifier's full-band analysis, sound image focusing, dynamic contrast and other performances have also been elevated to a higher level.

The new output devices introduced in No. 33H have achieved great success, and in order to apply those same parts to the 300 series, we have redesigned their output circuit boards. The reason why the new output devices are selected is because they allow us to optimize the layout of the printed circuit board, which is not possible with the old model devices.

No.334, No.335 and No.336 also use the precision adaptive bias circuits used in No.33 and No.33H. This circuit is responsible for responding to the instantaneous requirements of the signal being amplified, and can emit three times as much power as the Class A power output allowed by the no-load current consumption in ordinary bias circuits.

Each amplifier includes a communications cross-linking system to ensure compatibility with other home automation equipment and future Mark Levinson equipment. We have also improved the operation of the DC trigger so that it can implement the forward control of Operate and Standby.

No.334, No.335 and No.336 are all designed based on similar basic circuits; their main difference is the size of the output power. The three amplifiers use a dual mono design with each channel independently powered. Their performance on the test bench surpassed our earlier products, and this will also be reflected in your listening system: stronger driving force, lower noise, less total harmonics and transient distortion, As well as better square wave performance, you can easily hear all these improvements in sound quality.

No.334, No.335 and No.336 not only provide gorgeous sound, but also combine the smart control of the Speaker. For an audio system that can bring years of listening pleasure to the master, they are like a good foundation for building this system.

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