My only concern is the CP13 does not seem to have any type of Dolby noise reduction, B or C, which is a problem with my whole cassette collection. All of my tapes recorded in one or the other. Superior to Walkmans and still affordable was Mini-Disc, which had not the the problems that killed DAT...

The bass may not be as good with NE5532 as with some newer opamps, particularly because the supply that feeds them is not as good as it should be. Some opamps work better with DC-DC supplies.

Has anyone opened the box and looked inside to see things like what's the PS type and which are the output chips?

Yes, SMD soldered chips ruined the fun. But you may try using the now common balanced outputs found on some DACs and use an outboard pcb with its own separate supply. And put DIP-8 sockets on it.

You might try looking at the specs of several chips, not just OPA, and see how they compare. Particularly distortion, noise and slew rate. And looking for people using the new ones. Put sockets if you can, and then compare them. Turn it off the equipment before plugging in or out. Be careful...

I'm afraid there might not be much of a difference. You can do this: unsolder the chip and put a dip-8 socket. The main problem is that better ICs usually lower th noise, and a bass guitar preamp is noisy by nature. But you can try other dual IC DIP-8 types and listen if there's any difference...

By portable amp you mean headphone amp?

Recently I bought a Fiio BTR5 headphone amp, and it has a 2.5mm balanced output. So I began a research on what the "balanced headphone" term and concept actually meant. First I looked around in Aliexpress what they might be offering as balanced headphones. Actually it's quite confusing, and...

KD is a brand that I have been using for some time, who makes very affordable models which sound quite well. Is there a KD balanced type that anyone would recommend?

The Fiio BTR5 2021 is already selling at AE for $159. It has has two 9219 and certainly other things that justify the + $45 in the new version price...

Thanks. Shanling 5 is available from AE, but more expensive than Fiio's.

I need to buy a small, BT, headphone player to use with my bedroom TV. The one I bought from Aliexpress, which would be the way to buy Fiio, was a Neoteck NTK106. But I'm experiencing mute glitches during playback, and it's not the BT source that is causing them. I'm using another BT...

I was looking at the thread beginning, and at that moment you could find different X208 XMOS converters, and if I am not wrong there was only one version with galvanic isolation from the first stage, and into the output SPDIF stage, and that was the F1 version. Now I made a search and only...

To start with it's exclusively a speaker system, never whatsoever will a headphone enter that system. My friend makes high quality speakers, and he abhors headphones. Always a power amp, usually Luxman, sometimes another similar good quality one. Never a preamp, never a receiver. He only used a...

I don't know yet about my friend's chain. I assembled my system with a Raspberry ethernet connected to my PC, soon to win a dedicated server. For now I'm using my PC as server. My program of choice for the Rasp was Picorepalyer with LMS, because I didn't want to use a cell phone as remote...

I would never use a PC without an external DAC. Any PC or laptop output is noisy. Please suggest options that are affordable. What about this one: https://www.amazon.com/dp/B07D412VLB?tag=techhivecom-20&th=1&psc=1&ascsubtag=US-003-3050398-002-1441458-web-20

That is the problem. He was thinking of using a mini-PC, but I don't think he will be able to. Because we can't find the model, only the brand. OTOS I don't think that unit is worth investing in internal HD/SSD, memory, external screen and power supply. I've seen that independent and...

He wants to play music on his power amp, replacing the CD.

A friend of mine asked about this unit and I can't exactly pin it or explain what it does. https://www.ebay.com/itm/Lossless-Music-Player-HiFi-USB-DAC-Audio-Decoder-Optical-Coaxial-Analog-Output/283309743758?hash=item41f6939e8e:g:nA0AAOSwsDZcGkaY It says it's a "music player", which is quite...

Some time ago I had read here someone claiming that the Topping D50 DACs were fed 3.3v separate supplies using linear regulators, fed directly from the 5v input supply. The output analog stages, on the contrary, used a DC-DC chip, that converted the 5v input supply to +/-8v. I believe the latter...

It's been some time that I don't come here. Has there been any attempts at modifying the D50 or D50s? I know that would be more DIY than anything, but maybe someone has a story to tell about that.

No, I do not see any metal cans. Can you tell me the name of the seller? Then I may find him.

Something is wrong on the URL, as it opens eBay, but not the seller.

Pity the LM48710 shows as obsolete at Mouser.

What about something from iFi that is in the same price range and has at least all the D50s input options available? Which model would be that?