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ieales

Responses from ieales

Does a brand new electrical circuit for audio gear benefit from burn in/break in time?
I'll wager not one of the respondents fully disconnected their system and re-connected prior to the miraculous improvements...  
Crimping tool?
^ and a depinning tool Machine crimps nearly fuse the connector and wire into a solid. It's almost impossible to achieve with a hand tool. Assuming it's a one-time connection and is for audio, better results are obtained by soldering the wire to... 
Digital gain vs analog gain
Then set amp such that your preamp can be run between 10-2 o'clock depending on desired volume ( therefor around 12) . This is usually the sweet spot on most variable pots used in a preamp.  Data?   I have always been advised that one should... 
Digital gain vs analog gain
Just because you don't understand something doesn't make it automatically "utter nonsense". @ -6db you have given away 50% of the SNR. Digital or otherwise.  
Digital gain vs analog gain
DAC = Digital to Analog Converter. If it has attenuation, it can be done mathematically before DA or post DA with digital attenuation or simply a pot, hopefully buffered. As far as -10dB for 16 bit or -20dB for 24 bit being hinge points, that is ... 
solid core VS stranded for inside speaker cabinet
ya gots a lot of solid in da voice coil 😉  
Question About Capacitor Upgrade in Tube Amp
Tubes are capable of several MHz operation. Oscillators are made of LCR and a device to drive them. The combination of the PSU, wiring - printed or P2P, transformer LCR and a tube to drive them can create a self-resonant circuit. If one searches... 
Question About Capacitor Upgrade in Tube Amp
Prove it. HF bypass caps are common in IC circuits as opamps can have multi-MHz bandwidths coupled with 100dB gain. Tubes can also be multi MHz oscillators, but willy-nilly hanging a film cap across the B+ filter maybe just the ticket to convert... 
Question About Capacitor Upgrade in Tube Amp
But my reading of the OP is that the question concerns coupling and bypass caps. Are you seriously suggesting bypassing with electrolytics? BEFORE worrying about bypass or blocking caps, ALWAYS ensure the electrolytic PSU filter caps are up to ... 
Question About Capacitor Upgrade in Tube Amp
I would also suggest that Dielectric Absorption (DA) is the most important measure for modding, because the other measures should have been considered in the design phase. Nope. DA is not the most important by a long shot. Of properties mentio... 
Question About Capacitor Upgrade in Tube Amp
Upgrading capacitors is a no-brainer. Ditto resistors, wire, tubes, sockets, transformers, connectors, layout, etc.  Expecting 'warmer mids' or 'silky highs' when installing Caps-4-Bux or any other component change in myriad divers applications i... 
Question About Capacitor Upgrade in Tube Amp
there was an improvement in frequency response and lower distortion replacing the cheap factory caps with one of better and different material construction. Did you measure the C or look up the ESR and ESL of the caps or just read the value pri... 
FUSE Question...Very Confused Please Help !
Typical line voltage spec is ±5%. 110 x 1.05 ≈ 115.  120v has been the US standard since 1967 🙄 120 * 1.05 = 126.  126 volts is  ≈30% power increase into 110v transformer resistance [which will increase a little from excess power dissipation] ... 
Question About Capacitor Upgrade in Tube Amp
As for capacitor used to shunt DC power supply, they are necessary to eliminate high-frequency noise present there, but never affect the sound quality as much as a different coupling (serial) capacitor used in the audio path. @eworkflow Are you... 
To couple, or not to couple, that is the question
It is isolation that alleviates this.  Yeah, I keep my speakers in the media room and listen in the garage. Unless speakers are suspended via a silent air column, they are not 'isolated' QED ??? Didn't see any 'proof'...