exD｜High-End Roon 伺服器及 OCXO 網絡交換器

Q: exD 香港代理是誰？

雅詠音響 Aria Audio 為 exD 香港及澳門官方代理，提供 konNET 系列・K2 及 konNET DDC

Q: 網絡交換器真的會影響聲音嗎？

串流播放時，音樂數據經網絡交換器傳到串流播放器，一般 IT 交換器只確保數據完整，不理會雜訊與時基誤差，exD 以 OCXO 時鐘・線性電源與隔離設計在網絡源頭處理這兩個問題

Q: 應該選哪一款 konNET？

konNET・五個 RJ45 網絡埠・10/100Mbps 快速以太網設計，konNET-k・千兆網絡交換器・附 SFP 光纖接口，konNET-o・光纖轉換器・配合 konNET-k 做光隔，歡迎 WhatsApp 查詢配搭建議

Q: konNET 可以取代路由器嗎？

不可以，konNET 是網絡交換器，不是路由器，路由器照舊負責家中網絡與上網，konNET 接在路由器與音響器材之間

Q: konNET-o 和 konNET-k 應該怎樣配搭？

konNET-o 放在路由器旁，把網絡訊號轉為光纖，光纖接到音響系統旁的 konNET-k SFP 接口，再以 RJ45 連接伺服器及串流播放器，歡迎 WhatsApp 查詢配搭建議

Q: SFP 接口可以接甚麼？

單模或多模光纖模組・兩端須用同一類型，銅線 RJ45 SFP 模組，SFP 直連線（Direct Attach Cable），光纖模組及光纖是否隨機附送・請 WhatsApp 查詢

Q: konNET 需要關機嗎？

原廠建議保持開機，OCXO 需要持續運作・不宜頻繁開關，konNET 不設電源開關・接上電源即啟動

Q: K2 一定要配 Diretta 器材嗎？

不一定・K2 預載 Roon Server・可配搭一般 Roon 相容器材，配合支援 Diretta 的 DAC 或串流播放器，例如 konNET DDC，便可使用 Diretta 傳輸，歡迎 WhatsApp 查詢配搭建議

Q: 可以預約試聽 exD 嗎？

可以・歡迎預約到陳列室試聽，按你的網絡・器材與預算提供配搭建議，WhatsApp 預約試聽

Q: 在香港購買 exD 的保養安排？

香港保養由雅詠音響提供，請於購買後十四天內登記保養，並保留購貨發票，詳情請參閱 保養細則

01 / 10

串流的起點Where Streaming Begins

一般電腦及 IT 交換器只確保數據完整送達exD 關心的是之後的事網絡上的雜訊與時基誤差・如何影響音樂重播

An ordinary computer or IT switch only makes sure the data arrives intactexD cares about what happens nexthow noise and timing error on the network shape the music

網絡路徑Network Path示意圖Illustration

路由器Router

konNETOCXO · LPS

串流播放器Streamer

雜訊與時基誤差Noise and Timing ErrorOCXO 時鐘・線性電源OCXO Clock, Linear Power

一般 IT 交換器An Ordinary IT Switch

−外置開關電源External switch-mode adapter−普通時鐘Standard clock−只為傳輸效率而設Built for throughput only

IT 交換器＋外置線性電源IT Switch + External Linear Supply

+電源較乾淨Cleaner power−時鐘與線路仍為 IT 而設Clock and circuit still built for IT

exD konNET

+內置低相位噪聲 OCXOBuilt-in low phase noise OCXO+全機線性電源Linear power throughout+由零開始為音響而設計Designed from scratch for audio

從網絡源頭改善串流音質Better streaming, starting at the network

02 / 10

六項核心設計Six Design Essentials

每一項都針對雜訊或時基誤差Each one targets noise or timing error

時鐘邊沿疊加Clock Edge Overlay示意圖Illustration

普通時鐘Standard Clock

每次邊沿都略早或略遲・數碼訊號的時序隨之浮動Each edge lands a little early or late, so the digital timing wanders

exD 低相位噪聲 OCXOexD Low Phase Noise OCXO

邊沿緊貼理想時序・穩定度達 ppb 級（十億分之一）Edges stay tight on the ideal timing, stable to parts per billion

圖 1｜時鐘邊沿越穩定・數碼訊號的時序越準確Figure 1 | The Steadier the Clock Edge, the More Precise the Digital Timing示意圖・非實測波形・ppb 級穩定度為 exD 原廠資料Illustration, not measured waveforms · ppb-level stability as stated by exD

01Low Phase Noise OCXO

OCXO 恆溫晶體時鐘OCXO Clock

低相位噪聲・配專屬低噪聲穩壓數據傳輸穩定度達 ppb 級即十億分之一

Low phase noise, with its own low-noise regulatorData and transmission stable to parts per billion

02Linear Power Supply

全機線性電源Linear Power Throughout

線性電源貫穿整個設計杜絕開關電源的 EMI 雜訊無需外置電源

An integrated LPS across the whole designNone of the EMI noise of a switch-mode supplyNo external adapter

03Dedicated Regulators

網絡晶片獨立穩壓Separate Regulators

網絡晶片配獨立低噪聲穩壓減少各供電腳位之間的串擾與干擾調變

Individual low-noise regulators for the network chipLess crosstalk and unwanted modulation between supply pins

04Impedance-Controlled PCB

阻抗控制線路板Impedance-Controlled PCB

多層線路板・進一步降低雜訊確保阻抗匹配

A multilayer board that lowers noise furtherand keeps impedance properly matched

05Isolation Magnetics

RJ45 內置隔離變壓Isolation Magnetics

模組化 RJ45 插座內置隔離磁性元件縮短整體訊號路徑

Modular RJ45 jacks with integrated isolation magneticsfor a shorter signal path overall

06All-Aluminium Case

全鋁合金機箱All-Aluminium Case

全非磁性結構・良好避震屏蔽環境中的 EMI／RFI

Non-magnetic throughout, with good vibration isolationScreened from environmental EMI and RFI

03 / 10

光隔｜以光纖隔斷雜訊Optical IsolationkonNET-o × konNET-k

光纖只傳光・不導電路由器與家中其他電器的電氣雜訊無法沿網絡線走進音響系統

Fibre carries light, not currentElectrical noise from the router and the rest of the home networkcannot follow the cable into your system

路由器以 RJ45 網絡線接入 konNET-o
konNET-o把網絡訊號轉為光纖傳送
光纖接到 konNET-k 的 SFP 接口
konNET-k以 RJ45 連接你的伺服器及串流播放器

Routerinto the konNET-o over RJ45
konNET-oconverts the network signal to fibre
Fibreruns to the SFP port on the konNET-k
konNET-kfeeds your server and streamer over RJ45

SFP 接口支援單模及多模光纖模組・兩端須用同一類型亦可接銅線 RJ45 SFP 模組或 SFP 直連線

The SFP port takes single-mode or multi-mode fibre modules, the same type at both endsIt also accepts copper RJ45 SFP modules and direct attach cables

exD konNET-k（上）與 konNET-o（下）背板｜RJ45 與 SFP 接口

04 / 10

exD K2Roon 音樂伺服器・ HostRoon Music Server · Host

專為 Roon 音樂串流而設播放內置儲存的音樂亦可串流 TIDAL 及 Qobuz

Built for RoonPlays music from its own storage and streams TIDAL and Qobuz

簡單來說In ShortRoon Server 是整套串流系統的大腦負責管理音樂庫與串流再把音樂送到你的播放器Roon Server is the brain of the streaming system: it runs your library and streams, then sends the music to your player

音樂來源MusicK2 內置儲存・最高 8TBK2 storage, up to 8TBTIDAL · Qobuz
exD K2預載 Roon Server專屬 Linux 系統Roon Server pre-installed, dedicated Linux buildRoon Core
exD konNETOCXO 時鐘網絡交換器OCXO-clocked network switchOCXO · LPS
串流播放器／ DACStreamer or DACRoon 相容器材・或 Diretta 器材Roon-compatible or Diretta devicesRAAT · Diretta · USB

圖 2｜K2 在串流系統中的位置Figure 2 | Where the K2 Sits in a Streaming System示意圖Illustration

exD K2 頂蓋上的 exD 標誌 — 一體式鋁合金機身高剛性・防護機械及電磁干擾圖示頂蓋上的 exD 標誌One-Piece Aluminium BodyRigid, screened from mechanical and electromagnetic interferencePictured: the exD logo on the top cover

處理器Processor: Intel 八核心 Alder LakeIntel 8-core Alder Lake
系統System: Linux x64Preemptive 核心Linux x64, preemptive kernel
軟件Software: 預載 Roon ServerRoon Server pre-installed
網絡Network: 2.5Gbps × 2其一專用 Diretta2.5Gbps × 2, one for Diretta
USB: USB 3.0 × 2其一專用 USB DACUSB 3.0 × 2, one for a USB DAC
儲存Storage: 可選配・最高 8TBOptional, up to 8TB
電源Power: 220/230V 或 110/115V AC最高 30W220/230V or 110/115V AC, 30W max
尺寸・重量Size and Weight: 302 × 225 × 100mm12kg

exD 為 Diretta 官方合作夥伴K2 作 Diretta Host・需配合支援 Diretta 的 DAC 或串流播放器一般 Roon 相容器材亦可使用exD is an official Diretta partnerThe K2 is a Diretta Host and needs a Diretta-compatible DAC or streamerIt works with ordinary Roon-compatible devices too

HK$68,800HK$68,800

WhatsApp 查詢 exD K2Ask About the exD K2

exD K2 產品詳情exD K2 Product Details

05 / 10

exD konNET DDC數碼串流轉換器・Diretta TargetNetwork Streaming Converter · Diretta Target

把網絡串流轉為USB・AES/EBU・同軸數碼輸出直接連接你的 DAC

Turns a network stream into USB, AES/EBU and coaxial digital outputsstraight into your DAC

支援 Diretta DDS 串流模式及 Roon RAAT（Roon Bridge）
1 × RJ45 輸入USB 2.0・75Ω BNC 同軸・2 × AES/EBU 輸出
AES/EBU 支援單線及雙線最高 384kHz
以 FPGA 自行設計數碼輸出所有數據先重新時鐘
內置離散式 UltraQuiet 線性電源低輻射環形變壓器

Diretta DDS streaming mode and Roon RAAT (Roon Bridge)
1 × RJ45 inUSB 2.0, 75Ω BNC coaxial and 2 × AES/EBU out
AES/EBU in single-wire or dual-wire modeup to 384kHz
Digital outputs of exD's own FPGA designevery sample reclocked
Built-in discrete UltraQuiet linear supplywith a low-radiation toroidal transformer

384kHzAES/EBU 最高AES/EBU Maximum

2AES/EBU 輸出AES/EBU Outputs

75ΩBNC 同軸輸出BNC Coaxial Out

HK$13,800HK$13,800

網店現已接受訂購Open for orders on our webstore

exD konNET DDC 產品詳情exD konNET DDC Product Details

exD konNET DDC · Diretta Target

exD konNET DDC 內部 FPGA — konNET DDC 內部Inside the konNET DDC

exD konNET DDC 背板｜BNC 同軸及兩組 AES/EBU 輸出 — AES/EBU・BNC 同軸輸出AES/EBU and BNC Coaxial Outputs

06 / 10

把 exD 加進你的系統Add exD to Your System系統配搭模擬System Builder

選出你現有的器材看看 exD 放在哪裡・改變甚麼

Pick what you already ownand see where exD fits, and what it changes

01路由器在哪裡？Where Is Your Router?

02以光纖隔開路由器？Isolate the Router with Fibre?

03Roon Core／音樂伺服器Roon Core or Music Server

04你的播放器材Your Playback Device

點選前後・比較改變Switch between the two to compare

示意圖・實際連接按你的器材而定Illustration, actual connections depend on your equipment

建議組合Suggested Combination

合共Total

WhatsApp 查詢配搭建議Ask About This Setup

07 / 10

專業評價What the Reviewers Say

hifistatement.net exD konNET-k 及 konNET-o 評測相片 — **hifistatement.net**德國・2025 年 9 月Germany · September 2025

"Die Switches konNET-k und konNET-o von exD überzeugen auf Anhieb und sind eine ausgezeichnete Wahl für Audiophile, die es mit dem heimischen Streaming-Netzwerk, ganz gleich ob per LAN-Kabel oder Glasfaserkabel, ernst meinen. Eine klare Empfehlung!"「exD 的 konNET-k 與 konNET-o 一聽便令人信服無論用網絡線還是光纖對認真看待家中串流網絡的發燒友都是出色之選絕對值得推薦」"exD's konNET-k and konNET-o switches convince straight away, and are an excellent choice for audiophiles who are serious about their home streaming network, over LAN cable or fibre alike. A clear recommendation!"hifistatement.net · Roland Dietl · 2025 · konNET-k & konNET-o

"Der konNET-k gibt das Timbre der Stimme von Clair Martin erstklassig wieder."「konNET-k 把 Clair Martin 的嗓音音色重現得一流」"The konNET-k reproduces the timbre of Clair Martin's voice superbly"hifistatement.net · Roland Dietl · 2025 · konNET-k

U-Audio 音響共和國U-Audio台灣・2026 年 4 月Taiwan · April 2026

「讓串流聽上去還有幾分高階 MC 唱頭的那種細緻、優雅與寬鬆」"It lends streaming something of the finesse, elegance and ease of a high-end MC cartridge"U-Audio · 戴天楷 · 2026 · konNET-o & konNET-k

「音響用的網路交換器並不是玄學，也不是廠商噱頭，這是有科學基礎、從根本優化串流品質的解決方案」"An audio network switch is neither voodoo nor a marketing gimmick. It is a solution grounded in science that improves streaming quality at the root"U-Audio · 戴天楷 · 2026 · konNET-o & konNET-k

影片評測Video Review

影片：feverSound・exD konNET 評測Video: feverSound, exD konNET Review

08 / 10

放進你的系統In the System

exD konNET

09 / 10

konNET 系列網絡交換器The konNET Network SwitchesAudiophile Network Switches

三款型號・同樣配備 OCXO 時鐘與線性電源按你的網絡與系統選擇

Three models, each with an OCXO clock and linear powerChoose by your network and your system

konNET

五埠網絡交換器Five-Port Network Switch

5 × RJ45｜10/100Mbps快速以太網設計・降低整體雜訊

5 × RJ45 | 10/100MbpsFast Ethernet topology to lower overall noise

HK$8,500HK$8,500

exD konNET 產品詳情exD konNET Product Details

konNET-k

千兆網絡交換器・附光纖接口Gigabit Switch with an SFP Port

4 × RJ45 + 1 × SFP｜1Gbps交換器與光電轉換集於一身

4 × RJ45 + 1 × SFP | 1GbpsA switch and an optical converter in one

HK$11,800HK$11,800

exD konNET-k 產品詳情exD konNET-k Product Details

konNET-o

光纖轉換器・光隔Optical Converter for Fibre Isolation

1 × RJ45 + 1 × SFP｜1Gbps把網絡訊號轉為光纖傳送

1 × RJ45 + 1 × SFP | 1GbpsTurns the network signal into light

HK$6,980HK$6,980

exD konNET-o 產品詳情exD konNET-o Product Details

konNET 系列比較konNET Models Compared

	konNET	konNET-k	konNET-o

網絡速度Speed	10/100Mbps	10/100/1000Mbps	10/100/1000Mbps
RJ45	5	4	1
SFP	—	1	1
時鐘Clock	低相位噪聲 OCXO・配專屬低噪聲穩壓Low phase noise OCXO with its own low-noise regulator
電源Power	內置線性電源｜220/230V 或 110/115V AC｜最高 10WBuilt-in linear supply \| 220/230V or 110/115V AC \| 10W max
顏色Colour	銀色・黑色Silver or Black
價格Price	HK$8,500HK$8,500	HK$11,800HK$11,800	HK$6,980HK$6,980

網絡速度Speed: 10/100Mbps
RJ45: 5
SFP: —
價格Price: HK$8,500HK$8,500

網絡速度Speed: 10/100/1000Mbps
RJ45: 4
SFP: 1
價格Price: HK$11,800HK$11,800

網絡速度Speed: 10/100/1000Mbps
RJ45: 1
SFP: 1
價格Price: HK$6,980HK$6,980

全系列通用Across the Range

時鐘Clock: 低相位噪聲 OCXO配專屬低噪聲穩壓Low phase noise OCXOwith its own low-noise regulator
電源Power: 內置線性電源220/230V 或 110/115V AC最高 10WBuilt-in linear supply220/230V or 110/115V AC10W max
顏色Colour: 銀色・黑色Silver or Black

不確定該選哪一款？告訴我們你的網絡與器材・我們給你配搭建議

Not sure which one you need?Tell us about your network and system, and we will suggest a pairing

WhatsApp 查詢配搭Ask on WhatsApp

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常見問題Questions

exD 香港代理是誰？

雅詠音響 Aria Audio 為 exD 香港及澳門官方代理提供 konNET 系列・K2 及 konNET DDC

網絡交換器真的會影響聲音嗎？

串流播放時音樂數據經網絡交換器傳到串流播放器一般 IT 交換器只確保數據完整不理會雜訊與時基誤差exD 以 OCXO 時鐘・線性電源與隔離設計在網絡源頭處理這兩個問題

應該選哪一款 konNET？

konNET・五個 RJ45 網絡埠・10/100Mbps 快速以太網設計konNET-k・千兆網絡交換器・附 SFP 光纖接口konNET-o・光纖轉換器・配合 konNET-k 做光隔歡迎 WhatsApp 查詢配搭建議

konNET 可以取代路由器嗎？

不可以konNET 是網絡交換器不是路由器路由器照舊負責家中網絡與上網konNET 接在路由器與音響器材之間

konNET-o 和 konNET-k 應該怎樣配搭？

konNET-o 放在路由器旁把網絡訊號轉為光纖光纖接到音響系統旁的 konNET-k SFP 接口再以 RJ45 連接伺服器及串流播放器歡迎 WhatsApp 查詢配搭建議

SFP 接口可以接甚麼？

單模或多模光纖模組・兩端須用同一類型銅線 RJ45 SFP 模組SFP 直連線（Direct Attach Cable）光纖模組及光纖是否隨機附送・請 WhatsApp 查詢

konNET 需要關機嗎？

原廠建議保持開機OCXO 需要持續運作・不宜頻繁開關konNET 不設電源開關・接上電源即啟動

K2 一定要配 Diretta 器材嗎？

不一定・K2 預載 Roon Server・可配搭一般 Roon 相容器材配合支援 Diretta 的 DAC 或串流播放器例如 konNET DDC便可使用 Diretta 傳輸歡迎 WhatsApp 查詢配搭建議

可以預約試聽 exD 嗎？

可以・歡迎預約到陳列室試聽按你的網絡・器材與預算提供配搭建議WhatsApp 預約試聽

在香港購買 exD 的保養安排？

香港保養由雅詠音響提供請於購買後十四天內登記保養並保留購貨發票詳情請參閱保養細則

Who distributes exD in Hong Kong?

Aria Audio is the official exD distributor for Hong Kong and Macaufor the konNET series, the K2 and the konNET DDC

Can a network switch really change the sound?

When you stream, the music data passes through a network switch on its way to the streamerAn ordinary IT switch makes sure the data arrives, and ignores noise and timing errorexD tackles both at the network with an OCXO clock, linear power and isolation

Which konNET should I choose?

konNET: five RJ45 ports, a 10/100Mbps Fast Ethernet designkonNET-k: a gigabit switch with an SFP portkonNET-o: an optical converter, paired with a konNET-k for optical isolationAsk us on WhatsApp for pairing advice

Does a konNET replace my router?

No. The konNET is a network switch, not a routerYour router still runs your home network and internet connectionThe konNET sits between the router and your audio equipment

How do the konNET-o and konNET-k work together?

The konNET-o sits by the router and turns the network signal into fibreThe fibre runs to the SFP port of a konNET-k beside your systemwhich then feeds your server and streamer over RJ45Ask us on WhatsApp for pairing advice

What can go in the SFP port?

Single-mode or multi-mode fibre modules, the same type at both endsCopper RJ45 SFP modulesSFP direct attach cablesAsk us on WhatsApp whether fibre modules and cable are included

Should I switch the konNET off?

exD recommends leaving it onThe OCXO is meant to run continuously, not to be cycled oftenThe konNET has no power switch and starts as soon as it is plugged in

Does the K2 need Diretta equipment?

No. The K2 runs Roon Server and works with ordinary Roon-compatible devicesPair it with a Diretta-compatible DAC or streamer, such as the konNET DDC, to use DirettaAsk us on WhatsApp for pairing advice

Can I book a demo of exD?

Yes, book a showroom demoand get pairing advice for your network, system and budgetBook a demo on WhatsApp

What warranty applies in Hong Kong?

Warranty in Hong Kong is provided by Aria AudioPlease register within 14 days of purchase and keep your receiptSee our warranty terms

雅詠音響 · exD 香港及澳門官方代理Aria AudioOfficial exD Distributor for Hong Kong and Macau

由網絡開始改善你的串流系統Start with the Network

預約到陳列室試聽 exD按你的網絡・器材與預算提供配搭建議

Book a showroom demo of exDand get pairing advice for your network, system and budget

WhatsApp 預約試聽Book a Demo on WhatsApp 瀏覽 exD 全線產品及價格See the Full exD Range and Prices

exD konNET 產品詳情exD konNET Product Details exD konNET-k 產品詳情exD konNET-k Product Details exD konNET-o 產品詳情exD konNET-o Product Details exD K2 產品詳情exD K2 Product Details exD konNET DDC 產品詳情exD konNET DDC Product Details

exD High-End Roon 伺服器與 OCXO 時鐘網絡交換器exD High-End Roon Servers and OCXO Audiophile Network Switches

串流的起點Where Streaming Begins

一般 IT 交換器An Ordinary IT Switch

IT 交換器＋外置線性電源IT Switch + External Linear Supply

exD konNET

六項核心設計Six Design Essentials

普通時鐘Standard Clock

exD 低相位噪聲 OCXOexD Low Phase Noise OCXO

OCXO 恆溫晶體時鐘OCXO Clock

全機線性電源Linear Power Throughout

網絡晶片獨立穩壓Separate Regulators

阻抗控制線路板Impedance-Controlled PCB

RJ45 內置隔離變壓Isolation Magnetics

全鋁合金機箱All-Aluminium Case

光隔｜以光纖隔斷雜訊Optical IsolationkonNET-o × konNET-k

exD K2Roon 音樂伺服器・ HostRoon Music Server · Host

exD konNET DDC數碼串流轉換器・Diretta TargetNetwork Streaming Converter · Diretta Target

把 exD 加進你的系統Add exD to Your System系統配搭模擬System Builder

01路由器在哪裡？Where Is Your Router?

02以光纖隔開路由器？Isolate the Router with Fibre?

03Roon Core／音樂伺服器Roon Core or Music Server

04你的播放器材Your Playback Device

建議組合Suggested Combination

專業評價What the Reviewers Say

影片評測Video Review

放進你的系統In the System

konNET 系列網絡交換器The konNET Network SwitchesAudiophile Network Switches

konNET

konNET-k

konNET-o

konNET 系列比較konNET Models Compared

常見問題Questions

由網絡開始改善你的串流系統Start with the Network