BURMESTER 911mk3

Commentary

This is the third generation of the Stereo Power Amplifier 911, which was born in 1990.

In particular, the output stage of 911mk3 has been greatly enhanced.
A four parallel-connected output stage consisting of eight carefully selected pair transistors is driven by a power supply consisting of a filter capacitor with a total capacity of 130,000 μ F and a huge toroidal transformer with a total capacity of 750 VA to achieve a high output.

The circuit design is a fully balanced transmission and pure DC coupling that does not incorporate a capacitor in the signal path, eliminating the effect on sound quality.

Uses a full modular design.

It is also possible to make monaural configuration by bridge connection.
Bridge connection is performed by external adapter or factory internal setting.

Uses Burgess traditional balanced circuit design.

The input stage is designed using a Class A operation X amplifier unique to Blumester.

The overall NFB is kept very small.

A high damping factor of approximately 3000 controls the speakers in all bands.

Silver cables unique to Burgundy are used for internal wiring.

Power ON/OFF can be controlled remotely in combination with preamp 808mk5.

Built-in protection circuit for overheating and DC offset.

Equipped with chrome-plated bracket.
The chassis is made of silver anodized aluminum.

Model Rating

Type	Stereo power amplifier
Rated output	350W + 350W (4 Ω) 770W (4 Ω, bridge / monaural connection)
Frequency characteristic	0 to 200 kHz -3dB
Peak current	40A
Damping factor	3000
Signal-to-noise ratio	81dB
Input sensitivity	730 mv (at full volume) 390 mv (at 100W, 4 Ω load)
Total harmonic distortion factor	Not more than 0.003%
External dimensions	Width 482x Height 216x Depth 482 mm
Weight	37kg