Digital Versus Analog

[kt315]

valve reactor

[kt315]

D class amplifier chipo

[kt315]

Jimi Hendrix and Jimmy Page sound chipo

[dbanner]

Looking pretty impressive, maybe is excellent design KT
Is the valve serving any purpose, or just put there for aesthetic appeal. I think just heater is connected to give nice glow. It is definitely 12AX7 tube, which is typical for music preamp. It can be overdriven with just 12volt supply for distortion effects, but judging from rest of circuit, I think it's just put there as gimmick.

[waltr]

I think the Original Question has gone missing.
It is now about the analog verse digital sound of the audio.
It is about the faint subtle sounds of an analog signal chain of circuits verse the interpretation by a digital 'processor' generating the audio.

Can we please go back to the original question?

[dbanner]

On the topic of this thread, we don't live in digital universe, only in digital transposition of analog. For nuances in sound, analog has great advantage. But I don't care too much about nuance. Not much of anything in ground over here worth hunting anyways

[CAS]

I am using an audio enhancement device on my gpx4500 and I can say nothing but good things about it, I believe its main forte is audio compression to make the signal pop more, and it has some eq filtering as well as signal amplifier. Using the factory amp built in the batt you hear lot of background electrical noise, but using the audio enhancement device I get clean background. The Gpx does have a lot of audio features you can set internally, but it lacks a compression feature. AS far as nuances I find that a pi has little to none. But the VLF machines can really talk to you with their audio if well built. Audio ID is a much more reliable thing than vdi, screen etc.

Just out of curiosity - what enhancer are you using?

[CAS]

I think the Original Question has gone missing.
It is now about the analog verse digital sound of the audio.
It is about the faint subtle sounds of an analog signal chain of circuits verse the interpretation by a digital 'processor' generating the audio.

Can we please go back to the original question?

I have found that the digital processing of any audio seems to give it a more harsh/coarse sound. It certainly doesnt have the warmth or subtlety of an analog signal. High resolution DACs can help but its still not as good.

A lot of major audio manufacturers are going to digital amplifiers (which I might add are an absolute pain to repair compared to analog) and imho, the sound is no way near as good. The depth of sound also seems to be lacking but this could also be attributed to them now using SMPS instead of a power supply with a big transformer and caps.

[MXT SNIPER]

I am using the SP01.

[CAS]

I am using the SP01.

Great to hear. Steelphase is my company lol. And I'm glad its working well for you.

regards Pat

[MXT SNIPER]

Pat,

You have a great product with that enhancer, its on my gpx every time out. I have heard of a few very good success stories using your enhancer. Bringing beat/flogged claims and patches back to life again!!

[kt315]

- I'm gonna sell all my digital detectors ---gonna keep only the old analog ---I believe the world is headed for a " digital doomsday " ---rolling down like a cannonball downhill --- all supposingly in the name of progress ---do what you want to, and believe what you will , but I believe that progress is nothing more than a way of sweeting up the word distruction ????????????????? http://compass-metal-detector-forum....td7621120.html

[MXT SNIPER]

You may not be that far off the mark if we experience a large solar flare event. I better keep a few analog machines myself. Maybe build some faraday boxes for my digital detector control boxes!

During the Carrington Event, northern lights were reported as far south as Cuba and Honolulu, while southern lights were seen as far north as Santiago, Chile. (See pictures of auroras generated by the Valentine's Day solar flare.)

The flares were so powerful that "people in the northeastern U.S. could read newspaper print just from the light of the aurora," Daniel Baker, of the University of Colorado's Laboratory for Atmospheric and Space Physics, said at a geophysics meeting last December.

In addition, the geomagnetic disturbances were strong enough that U.S. telegraph operators reported sparks leaping from their equipment—some bad enough to set fires, said Ed Cliver, a space physicist at the U.S. Air Force Research Laboratory in Bedford, Massachusetts.

[erte123]

https://toptubeamplifier.com/big-ton...r-b4-reviewed/

if i knew more about electronics and how to fit this mini portable tube amp into an analog detector i would