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#汽車電子 #逐次逼近類比數位轉換器SAR ADC
【低功耗＆出色的類比數位轉換，非 SAR ADC 莫屬】
若在類比—數位轉換應用中，需要低功耗及出色的交流和直流性能時，逐次逼近類比數位轉換器 (SAR ADC) 是不錯的選擇。不同的解析度、速度、功能和封裝類型，可滿足不同的特定設計需求。當然，對於汽車應用，AEC-Q100 認證必不可少！現今市面上唯一符合此認證、額定 1 Msps、16/14/12 位元的差分輸入 SAR 器件就在這裡！
延伸閱讀：
《SAR Analog-to-Digital Converters》
https://www.microchip.com/design-centers/data-converters/analog-to-digital-converter/sar-analog-to-digital-converters?utm_source=compotechasia.com&utm_medium=LeaderboardAd&utm_content=MSLD_860x80&utm_campaign=1LSBACs
#微芯科技Microchip
GRANDIOSO K1X
"Two revolutions integrated. Two revolutions connecting people to music... The VRDS-ATLAS and Master Sound Discrete DAC - now come to fruition in an integrated player that carries the name… Grandioso ( Grandioso (music): Grand or noble)."
An unprecedented transport mechanism that invites you to the furthest reaches of sound.
VRDS (Vibration-Free Rigid Disc-Clamping System) is Esoteric's unique CD/Super Audio CD transport technology, which has been specially designed to clamp the disc to a same-diameter turntable in order to eliminate the disc's rotational vibration, as well as any extraneous vibration emanating from the mechanism itself. It also corrects any warpage of the disc, dramatically improving the accuracy of both the optical pickup and the disc pit layer's corresponding optical axis, while also minimizing servo current. This all adds up to dramatically reduced disc read error for exceptional audio quality.
The new VRDS-ATLAS platform boasts unprecedented mechanical perfection and superlative audio quality, with heavyweight construction that is fully 127% heavier than previous iterations (6.6kg for the mechanism alone, and 13.5kg including its base). This highest rigidity and weight in the history of VRDS mechanisms has the effect of greatly reducing any and all vibration that could adversely affect audio quality. The transport's larger new side panels and bridge are all formed of SS400 steel, and its turntable is made from duralumin, which is renowned for its excellent sound quality. Also, its spindle features a newly designed thrust bearing system, for a friction-free one-point spindle support system that ensures smooth, noiseless turntable rotation.
Esoteric's impressive VRDS-ATLAS is the quietest and most elegant transport in the history of VRDS. The key to achieving this was a resolute focus on mechanical grounding technology that more effectively reduces vibration.
Adopting a wide & low-profile design for the entire mechanism helped achieve a lower center-of-gravity, and relocating the turntable motor to below the turntable from its previous position above the bridge dramatically shortened the route for grounding vibration and reducing mechanical noise. Tray hollowing has also been minimized for increased rigidity, and special stoppers made from vibration-absorbing elastomer cancel out resonance when the tray is stored.
The Grandioso K1's mighty power supply was the key to its powerful and profound three-dimensional sound. With the introduction of its new X version, this power supply has been dramatically enhanced to add further depth to its exceptional audio tone. Its built-in D/A converter features independent power transformers for left and right channels, and the K1X includes a total of four independent toroidal power supply transformers. Furthermore, technologies cultivated in the development of the Grandioso P1X/D1X have also been adopted, including a new low-feedback DC power supply regulator featuring a discrete circuit configuration which contributes to its powerful open sound. The K1X also contains a total of 76 EDLC* supercapacitors (with a total capacity of 2,050,000µF or 2.05F). This greatly increased power supply capacity provides a tremendously improved sound quality for exceptional resolution in the lower frequency ranges.
*EDLC (Electric Double-Layer Capacitor):A special type of capacitor boasting an astoundingly high capacity compared to the electrolytic capacitors used in conventional audio equipment.
The VRDS-ATLAS transport mechanism is centrally located within the chassis, where it is fixed to a 5mm-thick steel bottom plate and supported by four proprietary pinpoint feet (patent no. 4075477 and 3778108). This effectively isolates the rotational mechanism from vibration. The internal structure of the chassis features a double deck design, with the audio boards on the upper level and power supply circuits and transformers on the lower level to minimize magnetic flux leakage and vibration, while also shortening the power supply wiring.
Semi-Floating Top Panel
The enclosure's top panel utilizes a screwless semi-floating structure that further contributes to an open and expansive sound.
Master Sound Discrete DAC
Bringing out all the dynamics and energy of the original master recordings.
Master Sound Discrete DAC Bringing out all the dynamics and energy of music.
Unattainable by integrated chips, our goal was to assemble carefully selected and tested discrete components into a complete circuit that could perfectly reproduce all the dynamics and energy of music. Our top engineering teams put their pride on the line to design and produce a quality of sound that can only be found in the Master Sound Discrete DAC discrete D/A converter.
The K1X's Master Sound Discrete DAC is the most revolutionary two-channel stereo DAC circuit in Esoteric's history, and is based on the original circuit developed for the Grandioso D1X monaural D/A converter.
As an extension of the D1X's design philosophy, a luxurious volume of materials have been invested in the construction of K1X's Master Sound Discrete DAC. For example, it features 32 separate elements for each channel. Key components such as a clock driver, logic circuit, and capacitors and resistors, are kept independent for each of these 32 elements to ensure the purest output without no loss of musical energy.
The K1X's independently developed Δ∑ modulator supports 64-bit/512Fs and the latest high-end digital formats, including of 22.5MHz DSD and 768kHz PCM signals. The FPGA's* dedicated digital processing algorithm was developed exclusively for the Master Sound Discrete DAC, and has been fully optimized for outstanding playback of both DSD and PCM digital audio data.
Advanced Quality Control
With a discrete DAC, where component tolerances are directly linked to arithmetic precision, highly advanced quality control is also required for the manufacture of electronic circuit boards. Esoteric's own in-house factory boasts some of the world's leading board mounting technologies, such as soldering performed in an oxygen-free furnace, which is located in a clean room featuring the same level of cleanliness found in a hospital operating room. Technologies cultivated in the production of electronic circuit boards for audio, medical, aerospace, and defense industries support the high production quality of the Master Sound Discrete DAC.
The ESOTERIC-HCLD output buffer amplifier boasts an amazingly high-speed slew rate (response speed) of 2,000V/µs. Current transmission and speed—the most important factors for an analog output circuit—have been pushed to the limits to reproduce the reality of music with a dynamic range that is truly breathtaking.
In addition to its XLR and RCA amplifier line connections, the K1X also features the ES-LINK Analog method of current transmission. Taking full advantage of the HCLD buffer circuit's powerful current supply makes the K1X less susceptible to the detrimental effects of impedance on the signal route. It also enables a more powerful signal transmission, fully driving connected compatible devices.
A high-accuracy clock circuit is the key to achieving superlative sound quality in digital audio playback. A top-quality clock circuit is truly the heart of any high-end digital player. The K1X now features the superb Grandioso Custom VCXO II clock originally developed for the Grandioso P1X/D1X. This clock was developed with carefully considered modifications made to the earlier model's internal circuitry and components to more vividly emphasize the K1X's ultimate audio quality while further boasting remarkably low phase noise and excellent center precision (±0.5ppm).
The K1X can also be connected to the Grandioso G1 Master Clock Generator for playback, with internal circuits synchronized to a 10MHz clock that features the same high precision as an atomic clock, enabling further pursuit of high sound quality.
D/A Converter Functions for External Input, D/D Conversion, MQA Support & USB Input
In addition to its coaxial and optical inputs, the K1X also features a USB type-B port that is compatible with both 22.5MHz DSD and 768kHz/32-bit PCM asynchronous signal transmission, thus enabling it to also be used as a stand-alone D/A converter. Functions are provided for upsampling a PCM digital signal to 2/4/8/16× (max. 768kHz) and converting PCM to DSD. The K1X is also compatible with MQA-CD decode playback and full MQA decoding for playback of various digital inputs including USB.*
*MQA certification is pending as of August, 2019, and support is scheduled to be added via a software update as soon as certification is complete.
(Source: Esoteric Japan)
สินค้าเข้ามาเพิ่มแล้วนะครับ Audioengine B1 Bluetooth Receiver ที่มี Out-put ทั้งอนาล็อคแบบ RCA และดิจิตอล แบบ Optical มาให้ด้วยครับผม
เรื่องเสียงต้องบอกได้เลยว่าคุณภาพล้วนๆเลยครับไม่ต้องกังวลเรื่องดร็อปของสัญญานเสียงเลยครับ ให้เสียงที่มีไดนามิค มิติเสียงที่ดีมีกำลังให้รายละเอียดเสียงอย่างครบถ้วนเลยครับ ฟังแล้วไม่แบนราบแน่นอนจ้าาสำหรับ B1 Bluetooth Receiver ตัวนี้
ส่วนราคา Audioengine B1อยู่ที่ 7,990 บาท
ท่านใดสนใจ สามารถเข้ามาดูสินค้าได้ที่ ร้านไฮไฟเลิฟเวอร์ ชั้น 3 ศูนย์การค้าอัมรินทร์
หรือโทรสอบถามได้ที่
086-810-7374 พี่หมูหวาน
086-991-1632 จารย์เหลิม
02-652-1760 เบอร์ร้าน
Line id : @hifilover (อย่าลืมใส่ @ ข้างหน้านะครับ)
http://www.hifilover.com/
Specs
Bluetooth receiver type-Bluetooth 4.0 audio
Supported Bluetooth codecs-SBC, aptx
Supported Bluetooth profiles-A2DP, AVRCP
Inputs-Bluetooth
Outputs-Stereo analog RCA
Digital optical (SPDIF)
Required power-5V, 200mA
Operation range-up to 100ft (30m) typical
Full-scale output-2.0V RMS
Output impedance-57 Ohms
D/A converter-AKM AK4396
Power filtering-3-stage redundant regulation
SNR-SNR (DC to 20 kHz)
>100dB
THD+N-(1 kHz FS 96 kS/s) <0.02%
Frequency response-10Hz - 20kHz (+/-0.5dB)
Crosstalk->-86dB
Input bit depth-24-bit (upsampled)
Input data rate-Determined by Bluetooth
Latency-~30 milliseconds (ms)
Product dimensions-3.5 x 4.0 x 1”
Shipping weight-1.0lbs (0.5kg)
Shipping box dimensions-11 x 7 x 3"
前回のレビューを補足する意味で、比較試聴できる動画をつくりました。
ヘッドフォン・イヤホンで聴いてみてください。
商品提供 : S.M.S.L
◼︎S.M.S.L M400 D/Aコンバーター
https://amzn.to/3eI4kOP
〜レビュー動画はこちらから〜
【S.M.S.L M400】Bluetoothの音質もヤバかった!! 旭化成ハイエンドDACチップ「AK4499EQ」搭載のUSB DAC【レビュー】
https://youtu.be/MYses-8aRu4
〜関連動画〜
◼︎【VMV D1 DAC】S.M.S.Lの弩級USB DACは、まさかのES9038PROデュアル搭載!!
https://youtu.be/m64bg_3-fq0
◼︎【S.M.S.L M10】ミドルクラスUSB DACを試す！
https://youtu.be/TEdJtAtLUAM
◼︎【S.M.S.L M500】 MQA対応!! ES9038pro搭載のUSB DACがこの価格帯で実現!!
https://youtu.be/sg8wlwfUmEY
◼︎真空管アンプのイメージを覆す！！ NFJ「FX-AUDIO- TUBE-P01J 」開封セッティング&ファーストインプレション
https://youtu.be/auhtnQh_uoM
◼︎キターーーーー!! 究極ハイエンドDAP「FiiO M15」着弾!!
https://youtu.be/HVL8p33WvaE
〜今回の撮影機材(カメラ・レンズ)〜
◼︎Panasonic ルミックス GH5 ボディ DC-GH5-K
http://amzn.to/2ob26xJ
◼︎パナライカ DG SUMMILUX 15mm/F1.7 ASPH. H-X015-K
https://amzn.to/2QiXrw9
◼︎Panasonic 42.5mm F1.7 LUMIX G ASPH./POWER O.I.S.
http://amzn.to/1RZWYn6
〜今回の撮影機材(音声収録)〜
◼︎ZOOM ハンディレコーダー H5
http://amzn.to/22ttSoK
※商品リンクはAmazon/楽天アフィリエイトリンクを利用しています。
*********************************************************
◼︎レビュー依頼ほかお仕事のお問い合わせはこちらへ
tourbilloncafe@gmail.com
*********************************************************
■編集ソフト
Final Cut Pro X
■使用音源
・Artlist
https://artlist.io/Anthony-727123
・フリーBGM・音楽素材MusMus
http://musmus.main.jp/
・音楽の卵（おんたま）
http://ontama-m.com/
・フリーBGM DOVA-SYNDROME
https://dova-s.jp/
・軌跡jdkアクースティックス / Copyright © Nihon Falcom Corporation
■アンソニーのTwitter
https://twitter.com/antoine1973
お気軽にフォローしてください♪
#オーディオ
#比較試聴
#Bluetooth
S.M.S.Lの上から2番目のUSB DACをレビュー。
TOPのVMV D1 DACとはDACチップメーカーも違うので、優劣というより好みで選べばいいと思います。
汎用性という意味ではM400が実質TOPですね。
商品提供 : S.M.S.L
◼︎S.M.S.L M400 D/Aコンバーター
https://amzn.to/3eI4kOP
〜比較試聴はこちら〜
◼︎【超難問ブラインドテスト】S.M.S.L M400 のBluetoothを聴き分けられるか!?
https://youtu.be/bfgGlE_SKQc
〜関連動画〜
◼︎【VMV D1 DAC】S.M.S.Lの弩級USB DACは、まさかのES9038PROデュアル搭載!!
https://youtu.be/m64bg_3-fq0
◼︎【S.M.S.L M10】ミドルクラスUSB DACを試す！
https://youtu.be/TEdJtAtLUAM
◼︎【S.M.S.L M500】 MQA対応!! ES9038pro搭載のUSB DACがこの価格帯で実現!!
https://youtu.be/sg8wlwfUmEY
◼︎真空管アンプのイメージを覆す！！ NFJ「FX-AUDIO- TUBE-P01J 」開封セッティング&ファーストインプレション
https://youtu.be/auhtnQh_uoM
◼︎キターーーーー!! 究極ハイエンドDAP「FiiO M15」着弾!!
https://youtu.be/HVL8p33WvaE
〜今回の撮影機材(カメラ・レンズ)〜
◼︎Panasonic ルミックス GH5 ボディ DC-GH5-K
http://amzn.to/2ob26xJ
◼︎パナライカ DG SUMMILUX 15mm/F1.7 ASPH. H-X015-K
https://amzn.to/2QiXrw9
◼︎Panasonic 42.5mm F1.7 LUMIX G ASPH./POWER O.I.S.
http://amzn.to/1RZWYn6
〜今回の撮影機材(音声収録)〜
◼︎ZOOM ハンディレコーダー H5
http://amzn.to/22ttSoK
◼︎DEITY S-Mic2
https://amzn.to/2OG4wUd
※商品リンクはAmazon/楽天アフィリエイトリンクを利用しています。
*********************************************************
◼︎レビュー依頼ほかお仕事のお問い合わせはこちらへ
tourbilloncafe@gmail.com
*********************************************************
■編集ソフト
Final Cut Pro X
■使用音源
・Artlist
https://artlist.io/Anthony-727123
・フリーBGM・音楽素材MusMus
http://musmus.main.jp/
・音楽の卵（おんたま）
http://ontama-m.com/
・フリーBGM DOVA-SYNDROME
https://dova-s.jp/
・軌跡jdkアクースティックス / Copyright © Nihon Falcom Corporation
■アンソニーのTwitter
https://twitter.com/antoine1973
お気軽にフォローしてください♪
#SMSL
#オーディオ
#FiiOM15
自作のPCは18コア36スレッドのCPUにNvidiaの1080というかなり贅沢なスペックでいつもドヤしまくってるのですが、実はストレージはHDDが主体でかなり遅いので、この問題を解決すべきく、ここ数か月HDD撲滅運動をしていたのですが、本日遂に完全SSD化を実現。ただし、僕のPCはマザーボードが古く、M.2のSSDは一つしか搭載できないので、SATAのSSDを4個増設して高速ストレージ環境を実現してみました！かなり有益な検証結果がでたので参考になれば幸いです。
今回僕が利用したSSDとケースはこちら
SanDisk 内蔵SSD 2.5インチ / 2TB / SSD Ultra 3D
https://amzn.to/2Gl5wtP
Fenlink 2.5" to 3.5" Internal SSD Hard Drive SATA Drive Converter
https://amzn.to/2Gmbwm4
== 主な撮影機材 ==
Blackmagic Design シネマカメラ Pocket Cinema Camera 4K
https://amzn.to/2QCnvO
パナソニック 超広角ズームレンズ ライカ DG VARIO-ELMARIT 8-18mm F2.8-4.0
https://amzn.to/2S4ySz9
VoightLander 単焦点レンズ NOKTON 10.5mm F0.95
https://amzn.to/2D5P66v
パナソニック ミラーレス一眼カメラ ルミックス GH5S ボディ ブラック DC-GH5S-K
https://amzn.to/2CtFB0C
LAOWA 単焦点 広角レンズ 7.5㎜ F/2 MFT マイクロフォーサーズ用 LAO0022
https://amzn.to/2C6NCse
ソニー a7 III Full-Frame Mirrorless (ILCE7M3/B)
https://amzn.to/2rp1Puy
ソニー FE 16-35mm F2.8 GM (SEL1635GM)
https://amzn.to/2UnB0V1
GoPro HERO7 Black
https://amzn.to/2Tltf1b
DJI OSMO POCKET (3軸ジンバル, 4Kカメラ)
https://amzn.to/2S2oj08
== 面白かったらチャンネル登録お願いします！==
→ http://goo.gl/u5PG7w
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サブチャンネル: https://www.youtube.com/c/drikin
ポッドキャスト: http://backspace.fm/
ロゴデザイン： http://shioritogashi.com/
#SSD #自作PC #VLOG #4K
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