Đập tan cục đẩy 115 triệu ra thấy Choáng Váng Thật mọi người ạ - LEA CS704 amplifier

Anh Tho Dien

26 Jan 202412:35

Summary

TLDRThis engaging video takes viewers on a detailed exploration of two high-end audio amplifiers, contrasting their prices at 35 million and 115 million respectively. The presenter humorously navigates through the features, design quirks, and technical specifications of these devices, highlighting their build quality, including the unique port designs, power outputs, and the intricacies of their internal components. With a focus on one amplifier made in Costa Rica and boasting a simple yet sophisticated design, the narrative delves into the amplifier's architecture, showcasing its class D operation, elaborate signal processing units, and the craftsmanship that justifies its hefty price tag. The review culminates in a hands-on demonstration, promising further testing in a follow-up session, all while maintaining a light-hearted tone that makes high-end audio technology accessible and entertaining.

Takeaways

😀 The video is a review of an expensive 115 million VND amplifier
😲 The amplifier has impressive build quality with tightly packed components
🔌 It has 4 channels driven by 4 pairs of MOSFETs
⚡ 600W switching power supply with a toroidal transformer
🤖 Uses 2 ARM microcontrollers - STM32H750 and STM32F103
📶 Likely has Bluetooth connectivity
🎚 Many audio jacks so likely needs special cables
🎶 Class D amplifier design for high efficiency
🎧 Targeted at high fidelity home audio systems
💰 Very expensive but seems to have impressive components and build quality

Q & A

What are the two amplifiers being compared in the video?
-The video compares a Yobama amplifier worth 35 million VND and a CS704 amplifier worth 115 million VND.
What power output does the CS704 amplifier have?
-The CS704 amplifier has a power output of 600 watts.
What network connectivity does the CS704 amplifier support?
-The CS704 amplifier supports 802.11 bgn WiFi.
What processors are used in the CS704 amplifier?
-The CS704 uses an STM32H750 and an STM32F processor.
How many audio channels does the CS704 amplifier have?
-The CS704 has 4 audio channels - AB, BC, CD, and D.
What type of amp modulation does the CS704 use?
-The CS704 uses Class D modulation for the amplifier section.
What type of capacitors are used in the CS704?
-The CS704 uses high quality SMD electrolytic capacitors throughout.
What is the transformer power rating in the CS704?
-The CS704 uses a 600W EI42 switching power supply transformer.
What preamplifier components are visible in the CS704?
-The preamp section appears to use op-amps and additional small SMD components.
What design elements contribute to the high cost of the CS704?
-The precision assembly, audiophile-grade components, integrated WiFi, and extensive processing power contribute to the high cost.

Outlines

00:00

🎤 Introducing a $115 million amplifier

The speaker introduces two amplifiers, one costing $35 million dong and another costing $115 million dong. He expresses surprise at the high cost and holes in the expensive amplifier. He then proceeds to unbox and examine the $115 million amplifier.

05:00

🤓 Examining the internal design

The speaker disassembles the amplifier and examines its internal design. He identifies various function blocks - power supply, output stage, DSP processor etc. He observes the meticulous construction with high-end components, explaining why it costs $115 million.

10:02

🔌 Overviewing the power unit

The speaker examines the switching power supply which can deliver 600W to drive the output stage. He notes the transformer and filtering capacitors. He concludes that such a powerful amplifier is overkill for normal home use.

Mindmap

Keywords

💡cục đẩy

A cục đẩy refers to a power amplifier in this context. The video is showing and reviewing a high-end audiophile power amplifier worth over 100 million VND. The amplifier is the main focus of the video.

💡gia đình

Gia đình means family in Vietnamese. The video host says the amplifier is mainly intended for family and home use, not commercial or professional use. This suggests the amplifier is designed for regular household audio enjoyment.

💡âm thanh

Âm thanh means audio or sound in Vietnamese. The video focuses on reviewing the audio quality and power output capability of the expensive audiophile amplifier.

💡loa

Loa means loudspeaker in Vietnamese. The host explains good synergy between the amplifier and high sensitivity loudspeakers is important, not just high power output.

💡phần cứng

Phần cứng means hardware in Vietnamese. The host does an in-depth examination of the amplifier's internal hardware components and circuit layout.

💡linh kiện

Linh kiện means electronic components in Vietnamese. The host praises the premium quality and neatly arranged internal components of the expensive audiophile amplifier.

💡kiểm tra

Kiểm tra means examine or test in Vietnamese. The host plans to do further testing and sound quality evaluation of the amplifier in future videos.

💡chất lượng

Chất lượng means quality in Vietnamese. The video emphasizes the excellent build quality, components and design of this high-end audiophile amplifier.

💡nhạc

Nhạc means music in Vietnamese. The intended purpose of the audiophile amplifier is to reproduce music playback with exceptional quality at home.

💡âm nhạc

Âm nhạc means music in Vietnamese. The video host plays music while disassembling the amplifier, indicating music reproduction is its main function.

Highlights

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