westcoastaudiophile

Responses from westcoastaudiophile

Has anyone switched from Class AB/A to Class D? Was it better? Was it worse?
@niodari you may read about class D design here: https://people.engr.tamu.edu/s-sanchez/ECEN%20607%20Class%20D%202011.pdf  
Has anyone switched from Class AB/A to Class D? Was it better? Was it worse?
@niodari "You can certainly have a class D amplifier which is better than many class A ones” - better in what sense, max power perhaps? You may dial 500mW output @ 1kHz sine on any D class and A class amp and compare waveforms to understand D clas... 
SUT Interconnects
MC to SUT connection is a “low impedance: high current, low voltage” one, while SUT to Phono-amp is a “high impedance: low current, high voltage” variant of it. SUT to Phono-amp connection is very sensitive to RFI and other outside noise, thus sho... 
Has anyone switched from Class AB/A to Class D? Was it better? Was it worse?
@atmasphere +1 "If you know what you are doing you can build a class D amp that is in the driver’s seat rather than the back seat WRT any other kind of amplifier technology." its applicable to everything!   
Cable Quest
@faustuss I calculated total conductor gauge, which is 5awg for whole cable.. per leg you are correct w/ 8awg number, -thx!   
Help! Pre amp turning on by itself.
"Help! Pre amp turning on by itself.” - any response from manufacturer? who is it?   
Cable Quest
SC: the best sounding I found one is KimberKable 12TC, which is about 5AWG.. measured very low loop inductance and resistance, ultra high resolution sound w/ Accuphase pre/amp and B&W speakers.   
Cable Quest
@stringreen “...they also sound different depending on what they're attached to.” +1 - cables are not dominant factor, unless bad/faulty ones replaced with good ones.   
Has anyone switched from Class AB/A to Class D? Was it better? Was it worse?
@dman777 I used class D amps for 80kW front end PA gig setup, and I am using AB/A class amps for home sys.. class D has too much harmonics at low output level, RF noise, “weird” pulse response..   
How much do I need to spend to make vinyl sound better than digital?
teac phono PE505 is much better than many expensive, often just for shiny optics reason in many ways: https://teac.jp/int/product/pe-505/spec  
Analysis Plus Oval 9 Black vs Black Mesh
“..who do we believe here?” how about nobody?  
Matching a amplifier to speakers
Four output KTs are driven pretty hard to produce 180W of power, thus lifespan will not be great, likely below 2000h.   
Differences in clock cables?
@fthompson251 "I am wondering if anyone has done any testing, experimenting with different clock cables?” - yes, I’ve evaluated bunch of BNC test cable, mostly used for evaluating my chip designs (clocking circuitry). The winner is GORE, pricey lo... 
Accuphase A-48S
@foolishman I would recommend to get professional tech./eng. help., small mistake can cause big $$$ loss.   
What are your go to LP's for evaluating new gear or new tubes?
DIRE STRAITS - BROTHERS IN ARMS