rand129678
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Everything posted by rand129678
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What do people recommend for damping aluminium tubing?
rand129678 replied to andyr's topic in DIY Audio Projects
His notes: Recommended glue is CT1 - it sticks to PLA well enough and doesn't set too quickly allowing the whole speaker to be screwed together before it begins to dry. This allows any spill over to be wiped away (use an old brush to get inside the air guide etc). Sets with some amout of flexibility. Readily availabe in the UK but not sure about equivalents for other territories. Visit the Forum or Discord server to see what the community recommends for each region. SAFETY NOTES ON PLASTER OF PARIS: If you're stupid with it, it can be dangerous. NEVER put your hands/feet/whatever into plaster of paris EVER. It can suddenly set without warning, creating a lot of heat in the center, so you'll get burned or worse. Because of this never leave a batch of wet plaster of paris in reach of children or pets. Wearing a mask is recommended to not breathe in any dust, and goggles to stop it splashing into your eyes. Stay safe people! -
What do people recommend for damping aluminium tubing?
rand129678 replied to andyr's topic in DIY Audio Projects
This was interesting. Using plaster of paris mixed with glue -
March Audio Owners & Discussion Thread
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
Any plans @March Audio for more affordable amps, like Infineon MA5332MS based? To complement your top tier Purifi amps -
Further Information: This model here: https://www.dell.com/en-au/shop/dell-laptops/inspiron-15-laptop/spd/inspiron-15-3520-laptop 11th Gen i5-1135G7 CPU. 8gb RAM, 256gb SSD model. Includes Windows 11 Home 64-bit. Has been factory reset (see photos) Price includes shipping. Original boxing and invoice provided.
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Further Information: Full technical details here: https://www.smsl-audio.com/portal/product/detail/id/725.html This features a relay based volume control, not a volume potentiometer - so you get excellent channel balance. And remote control for volume too. I purchased this at Addicted To Audio in March 2023 - still heaps of local warranty remaining. Invoice provided. Original box, remote control, power cable included. Also selling the excellent SMLS D-6 DAC which pairs nicely with balanced outputs.
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March Audio Owners & Discussion Thread
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
I look at the 5W performance measurements for some newer amps and I have to double check if I'm looking at a DAC measurement -
Wongaburra - El Tel's Listening Space
rand129678 replied to El Tel's topic in Showcase Your System & Build Threads
Possible for you to share the Dirac before and after, squiggly lines ? -
Yep I was going to suggest this method. I spec'ed my own PC in big Fractal Design case, biggest Noctua fan, big PSU, Kingston RAM, Samsung Nvme SSD. I added $200 for Scorptec to build it for me (includes build warranty) and it still came out way cheaper than the pre-built PC's that come in fancy looking cases etc. Local pickup. So any warranty issues, local drop-off.
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Hi Jorgen, on Windows I tried the latest MAD but I sometimes get some pops. On macOS, no pops at all with VAD driver. Best SQ for me now is with Linux. Merging now have a good ALSA driver for Linux. So I run HQPlayer on Linux (Ubuntu Desktop 22.04) and it outputs directly to Anubis via ALSA over the network. Of course for measurements I am forced to use MAD for Acourate. Sometimes I get pops during the measurement so I need to re-do until it is clean during the sweeps
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Low power, low distortion Class D amps
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
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Low power, low distortion Class D amps
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
Similar to March's earlier suggestion earlier, to drive with a headphone amp (before his idea of specialist product) Some headphone amps are rated at 8 ohms. The THX amps are usually rated and measured down to 12 ohms. They may or may not be able to drive 8 ohms - would need to test. -
Low power, low distortion Class D amps
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
Yes I'd missed Alan's post there about the specialist product idea. -
Low power, low distortion Class D amps
rand129678 replied to sir sanders zingmore's topic in Stereo Amplifiers & Pre-Amps
Ordered the LA90 yet? https://addictedtoaudio.com.au/products/topping-la90-power-amplifier -
Hi Jorgen So you have ethernet cable direct from PC to Anubis - not going through a switch? That is indeed the Merging recommended way, unless one has their approved managed switch. So maybe it is your CPU then - I see it is 4 cores. Do you have a way to trial/test something more powerful - CPU with 8 cores and 16GB memory Maybe someone's laptop borrowed - you can try HQPlayer Desktop on it. Having said that, the convolution has much bigger impact than upsampling to higher rate, so if it is working great for you, maybe better to stick with it. Sometimes if we make a major change, things go backwards ! Then need to spend time troubleshooting Nice system you have there I upsample 6ch to PCM353kHz but I also measured DAC outputs and the upsampling doesn't really improve any measurements with Anubis
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Hi Jorgen Yes Acourte for DSP crossover and room correction What is the specs of your CPU doing the DSP? The noise scratches might be CPU but also might be network related I learned the hard way that Ravenna needs to follow Merging's recommendations quite closely Otherwise I get pops/scratches What is all the playback hardware in your chain ? How is it all connected I can try to see if there is something that caused me issues in the past too