Recent content by aive
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Focal Elear and Utopia Review / Preview With Measurements - Head-Fi TV
Lol nice so there goes that theory...- aive
- Post #271
- Forum: Headphones (full-size)
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
Nope - channel specific data to each DAC board. I.e. only left data and clocks goes to left DAC board. Plenty of room in centre for FIFO and RPi but you may struggle with power supplies for these components. Might be a photo of my setup on diyAudio - mines pretty bodgy :P- aive
- Post #3,234
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
The DAC boards are fed PCM signals which feed straight into the 1704 chips - all I2S conversion and manipulation is done on the DSP. So I just unsoldered the connections to the DAC boards and tapped in with my own PCM source (Ian makes an I2S to PCM board to go with his FIFO).- aive
- Post #3,231
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
Unsure what you mean. M7 has 3 boards - two output DAC boards one for each channel and a DSP board in the centre compartment. I completely removed the DSP board and replaced it with the Ian NOS FIFO solution that feeds PCM straight into the DAC boards for analogue conversion and output...- aive
- Post #3,227
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
The M7 is well designed in that it's modular. The DSP board feeds a PCM signal to each of the output boards (left and right). In terms of the FIFO you basically need an input board, i2s reclock board and an I2S to PCM board to interface with the M7 output boards. I use the same setup to feed...- aive
- Post #3,225
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
I measured significant issues with left/right channel phase shift in NOS mode and gave up with it. My source is laptop via optical (192khz upsample) for noise isolation. I tried USB via a galvanic isolator but prefer optical.- aive
- Post #3,222
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
Nah I wasn't the one selling my DSP board. Mine is just sitting in a box at the moment. In terms of setup it made a significant improvement to the tightness of the sound - really cleaned things up and sounded less muddy. The DSP board really is a bottle neck in the M7. I should go back and...- aive
- Post #3,219
- Forum: High-end Audio Forum
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Audeze LCD-4
Same re audeze support, think they're all on leave....- aive
- Post #2,203
- Forum: High-end Audio Forum
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New Audeze LCD3
Yeh I'm worried about the glue affecting the wood... I'll make a trip to the hardware store and see what's available- aive
- Post #10,930
- Forum: High-end Audio Forum
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New Audeze LCD3
The metal headphone connector has come loose from the right wooden shell of my LCD3s. I'd prefer not to go through the effort of sending back the unit for repair as I'm not in the US (and have already had to send my pair back once for a driver failure repair). Anyone know what's the best fix for...- aive
- Post #10,928
- Forum: High-end Audio Forum
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New Schiit! Ragnarok and Yggdrasil
Hey I've been planning to build this rack from IKEA bits I saw on IKEA Hackers - http://www.ikeahackers.net/2011/12/ikea-lack-audiophile-rack.html. Best thing is it's cheap! Not sure if its dimensions suit the Ygg though.- aive
- Post #8,960
- Forum: High-end Audio Forum
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New Schiit! Ragnarok and Yggdrasil
Outputs PCM. Older firmware versions could be modified to allow SACD ripping though (iirc been awhile since I looked into it since I realised my PS3 couldn't be modded). FYI - http://www.ps3sacd.com/index.html- aive
- Post #8,959
- Forum: High-end Audio Forum
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Audio GD Master-11(Combination from Master 7 and Master 9)
I experienced a channel phase shift issue in NOS mode which changed depending on my audio sample rate - measured via an oscilloscope.- aive
- Post #1,263
- Forum: High-end Audio Forum
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Audio GD Master-11(Combination from Master 7 and Master 9)
This is true. Although it may not use the 5V, the GND connection is still required and is considerably noisy. You can get a cheap galvanic isolator for the amanero board to mitigate this (diyinhk) but it requires a bit of DIY.- aive
- Post #1,139
- Forum: High-end Audio Forum
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Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
The GND pin on XLR is signal ground and its soldered to chassis on connector but there are various points where signal ground is connected to chassis. The RCA connector is insulated but that's silly because the RCA ground is the same as the XLR ground which is bonded to the chassis (plus at...- aive
- Post #3,070
- Forum: High-end Audio Forum