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Musical Fidelity V-link
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<blockquote data-quote="kostis" data-source="post: 1055974983" data-attributes="member: 2258"><p><strong>Και αυτό από www.computeraudiophile.com</strong></p><p></p><p>V-Link Asynchronous USB to S/PDIF converter (MSRP $169)</p><p></p><p>Musical Fidelity's new V-Link asynchronous USB to S/PDIF converter is the newest product in the V Series lineup. I've long been a fan of MF's small size, small price, large performance products and the V-Link is no exception. In fact it's my favorite small component Musical Fidelity has ever made. The V-Link is designed to connect a computer with an available USB port to a digital to analog converter with an available electrical Coaxial S/PDIF or optical TosLink input. The unit is then powered by the computer's USB interface. There are other products on the market that transfer music from a USB port to an S/PDIF port but the pool of devices that use asynchronous USB transfer mode, support up through 24 bit / 96 kHz high resolution music, don't require additional software installation, and cost as little as $169 is currently very small.</p><p></p><p>The V-Link asynchronous design is based on the TAS1020B USB controller. This in-house, ground-up converter design and specific async USB implementation are exclusive to Musical Fidelity. The V-Link was designed with a high precision clock that sits nearly on top of the critical internal components. Two fixed oscillators, one for rates based on 44.1 kHz and the other for rates based on 48 kHz is also the hallmark of a smart design. MF set its sights on designing this converter "right" and hit its target dead center. The V-Link requires absolutely no manual software or device driver installation. This is a big deal. No matter how often manufacturers suggest that software installation isn't an issue, they never seem to provide evidence supporting that claim. A few minutes spent browsing the Computer Audiophile forum should provide enough information to the contrary. Every audio device I know of that requires software installation to function has had issues with that software. Period. I'll even provide evidence so readers can check for themselves. Simply browse the websites of any manufacturer that offers a product requiring software/device drivers. Look for the software download section or for information about obtaining this software. Take note of how many updates there have been to each software package. There is a reason for new software versions beyond 1.0. If something isn't broke don't fix it. If something is broke …</p><p></p><p>In previous product reviews and forum comments I've discussed the importance of galvanic isolation[1] between the computer and audio system. Without this isolation audio systems are prone to significant amounts of electrical garbage flowing from a commodity powered computer. Galvanic isolation is not a 100% must have feature of a converter, but purchasing a unit without this may be problematic in some systems. The new V-Link is somewhat "ambidextrous" when it comes to isolation from a computer. The electrical Coaxial S/PDIF output is not isolated and the optical TosLink S/PDIF output is isolated by the nature of the optical connection. Like the Creepy Kinglink says, "Have it your way." Isolated or not each user can identify the connection type that works best in his system.</p><p></p><p>USB Input on V-Link</p><p>Audio Class Specific Audio Data Format</p><p>Audio Stream Format Type Desc.</p><p># Format Type: 1 PCM</p><p># Number Of Channels: 2 STEREO</p><p># Sub Frame Size: 3</p><p># Bit Resolution: 24</p><p># Sample Frequency Type: 0x05 (Discrete)</p><p># Sample Frequency: 32000 Hz</p><p># Sample Frequency: 44100 Hz</p><p># Sample Frequency: 48000 Hz</p><p># Sample Frequency: 88200 Hz</p><p># Sample Frequency: 96000 Hz</p><p></p><p>Endpoint 0x01 - Isochronous Output</p><p># Address: 0x01 (OUT)</p><p># Attributes: 0x05 (Isochronous asynchronous data endpoint)</p><p># Max Packet Size: 582</p><p># Polling Interval: 1 ms</p></blockquote><p></p>
[QUOTE="kostis, post: 1055974983, member: 2258"] [b]Και αυτό από www.computeraudiophile.com[/b] V-Link Asynchronous USB to S/PDIF converter (MSRP $169) Musical Fidelity's new V-Link asynchronous USB to S/PDIF converter is the newest product in the V Series lineup. I've long been a fan of MF's small size, small price, large performance products and the V-Link is no exception. In fact it's my favorite small component Musical Fidelity has ever made. The V-Link is designed to connect a computer with an available USB port to a digital to analog converter with an available electrical Coaxial S/PDIF or optical TosLink input. The unit is then powered by the computer's USB interface. There are other products on the market that transfer music from a USB port to an S/PDIF port but the pool of devices that use asynchronous USB transfer mode, support up through 24 bit / 96 kHz high resolution music, don't require additional software installation, and cost as little as $169 is currently very small. The V-Link asynchronous design is based on the TAS1020B USB controller. This in-house, ground-up converter design and specific async USB implementation are exclusive to Musical Fidelity. The V-Link was designed with a high precision clock that sits nearly on top of the critical internal components. Two fixed oscillators, one for rates based on 44.1 kHz and the other for rates based on 48 kHz is also the hallmark of a smart design. MF set its sights on designing this converter "right" and hit its target dead center. The V-Link requires absolutely no manual software or device driver installation. This is a big deal. No matter how often manufacturers suggest that software installation isn't an issue, they never seem to provide evidence supporting that claim. A few minutes spent browsing the Computer Audiophile forum should provide enough information to the contrary. Every audio device I know of that requires software installation to function has had issues with that software. Period. I'll even provide evidence so readers can check for themselves. Simply browse the websites of any manufacturer that offers a product requiring software/device drivers. Look for the software download section or for information about obtaining this software. Take note of how many updates there have been to each software package. There is a reason for new software versions beyond 1.0. If something isn't broke don't fix it. If something is broke … In previous product reviews and forum comments I've discussed the importance of galvanic isolation[1] between the computer and audio system. Without this isolation audio systems are prone to significant amounts of electrical garbage flowing from a commodity powered computer. Galvanic isolation is not a 100% must have feature of a converter, but purchasing a unit without this may be problematic in some systems. The new V-Link is somewhat "ambidextrous" when it comes to isolation from a computer. The electrical Coaxial S/PDIF output is not isolated and the optical TosLink S/PDIF output is isolated by the nature of the optical connection. Like the Creepy Kinglink says, "Have it your way." Isolated or not each user can identify the connection type that works best in his system. USB Input on V-Link Audio Class Specific Audio Data Format Audio Stream Format Type Desc. # Format Type: 1 PCM # Number Of Channels: 2 STEREO # Sub Frame Size: 3 # Bit Resolution: 24 # Sample Frequency Type: 0x05 (Discrete) # Sample Frequency: 32000 Hz # Sample Frequency: 44100 Hz # Sample Frequency: 48000 Hz # Sample Frequency: 88200 Hz # Sample Frequency: 96000 Hz Endpoint 0x01 - Isochronous Output # Address: 0x01 (OUT) # Attributes: 0x05 (Isochronous asynchronous data endpoint) # Max Packet Size: 582 # Polling Interval: 1 ms [/QUOTE]
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