Package express, send massive non-destructive resources. Ledi directly engraved the Swiss FM411 rear stage; completely cracked the original 19210 module and strictly followed the original test and production links. The components are strictly aging, tested, and paired; the modules are paired before installation, and all working points refer to the original machine; before leaving the factory after 100 hours of burn-in; each unit is independently numbered, and the module parameters are archived for future maintenance. The sound field is open, the details are rich, the sound is loose and natural, and full of charm. 1 set of balanced input, adjustable input level.

Standard version: 8800 yuan, domestic customized 600W ring cow, 6 pairs of power tubes, Nichicon 4700μF filter capacitor, 300W per channel

Deluxe version: 9800 yuan, original factorycustom made600W ring cow, 6CorrectPower tube, German FRAKO 6800μF filter capacitor, 300W per channel

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note:

1:411 is a pure post-level, it needs to be used with the pre-level.

2: Because the power of the rear stage is relatively large, you must wait until the warm-up is completed and the blue light of the switch button is always on before adjusting the front-stage volume.

3: The parameters related to power are all working conditions with 4 ohm load.

4: The following internal pictures are all luxurious versions.

The golden front panel, the blue light of the switch button in the warm-up phase after power-on is flashing, and it is always on after the warm-up is completed

Back panel: 1 set of balanced input terminals, input level adjustment knob, 2 sets of speaker terminals, power cord socket

Simon Tuned phono power cord socket

Input level adjustment knob, take the front stage of Le Flute 255 as an example, it is recommended to adjust to 9-12 o''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''clock

The internal structure of the ground floor is the same as the original 600W ring cow

Swiss eao switch consistent with the original factory, with complex structure and delay function

Upper internal structure, built-in heat sink

8 original German FRAKO 6800μF main filter capacitors

The input part uses a 19210 module and uses a discrete component class A circuit structure, which can eliminate clutter interference well

Each channel is the same as the original factory, 6 power tubes, 300W per channel; the flagship version has 8 power tubes, 380W per channel

Motorola gold-sealed triode, heat sink is added for high working temperature

Omron relay with output terminal (the photo is an engineering prototype, and the mass production machine is Izumi, Japan)

The input level adjustment knob adopts the American BOURNS 10K sealed potentiometer consistent with the original machine

The top cover and bottom plate are sprayed with light green electrolytic iron plate like the original machine, and the shielding effect is good

The heat dissipation holes of the top cover and bottom plate correspond to the internal heat sink

Strictly follow the original machine testing, production links, and professional instrument testing

The measured frequency response curve of the professional AP tester (input voltage 2V, output voltage 8V), human hearing range 20-20KHz range is completely flat
Professional AP tester, the test results under the same test conditions (2V input level, 1KHz sine wave): The distortion of some re-engraved FM is 40 times that of the flute!
The waveform of Ledi''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s re-engraved FM is symmetrical and neat (the result of strict matching of components), consistent with the original machine

FM official test waveform

Some re-engraved FM waveforms are asymmetrical and chaotic (the result of unmatched components)

About FM Acoustics:

      Switzerland''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s FM Acoustics (hereinafter referred to as FM) may be the most expensive HI-END brand in the world at present, even experienced veterans may not have heard of FM audio equipment , Because the price of this guy is really outrageous. A senior player once said this memorable sentence: “If the price of Krell, Cello and other equipment is too expensive, then the price of FM is simply damaging! ”How much is FM''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s fever equipment“harmfulness”, the sub-flagship stereo rear-level 711MKII is priced at 630,000, and the sub-flagship pre-level 266MKII is priced at 590,000. . .

      FM was originally a Swiss manufacturer specializing in radio professional audio products. After entering the HI-END field, it did nothing but do two things, and took out the spirit of Swiss watch manufacturing. All products are based on Hand-made precision manufacturing, treating audio equipment as a work of art. All FM research and development work and product production are carried out in the factory, which is the opposite of the fashionable management method of modern industry. All components purchased by FM are carried out inward rather than outward, because FM believes that only every detail of each link is under continuous and strict quality control measures, and accuracy and quality can be obtained. The real guarantee.

      During the entire assembly process, each component is tested before assembly. After the component is installed, each module and circuit board is inspected, tested and adjusted again; When it comes to equipment, each stage is continuously tested and adjusted. After the equipment is completed, the whole machine is tested, adjusted, and “burned”（Burn-in）And passed the seismic test. Because the production of FM equipment consumes a lot of manpower and material resources, FM insists on manual testing in a place with extremely high labor costs such as Switzerland, so the price is much more expensive than ordinary equipment.

Product introduction:

      Le Flute reproduces the Swiss FM411, the original machine is more than 400,000 yuan, the sound is real and natural, as for the beautiful descriptions.

      In the input part, the 19210 module is used, and the discrete component class A circuit structure is used to eliminate clutter interference.

      This machine refers to the original machine at 1:1 reproduction. We have purchased a batch of original transformers and filter capacitors from Germany. Each machine transistor adopts a transistor map after aging Visual instrument test pairing, each group of modules is actually adjusted on the machine and the modules are paired. All working points refer to the original machine. After two years of preparations for a large number of tests, I finally dared to launch it on the market. Before leaving the factory, each unit is independently numbered and the module parameters are archived for future maintenance. High-quality aluminum alloy is used for the front and rear, and the upper and lower plates are also painted with 2.2mm mild steel according to the original machine, respecting the original machine design.

Product Features:

1: 1 set of balanced input, 2 sets of speaker output.

2: The input level can be adjusted.

technical parameter:

Rated power: 300W per channel  4 ohms

                160W per channel  8 Euro

Frequency response range: 1HZ-60KHZ

Total harmonic distortion: 0.005% THD

Channel separation: 100dB

Maximum output current: 20A

Input impedance: 40k ohm

Size: 450*420*140mm=width*depth*height

Weight: about 20 kg

About after-sales service: In the case of selfless dismantling and misoperation, the whole machine is guaranteed for one year free of charge; only the material fee will be charged after one year (the buyer is required to bear the round-trip freight).