jaytor

Responses from jaytor

Krell Class A/B power amps, do 'anticipator circuits' work?
Yeah, I think it has more to do with setting the bias based on the current requirements (as in amps) of the current situation (e.g. listening level and speaker load requirements). For many speakers and most listening conditions, a fully biased cla... 
Harley quote
@djones51 - if you want to select products based on the way they measure, that's certainly your (and anyone else's) prerogative. Personally, I'd rather choose products that sound good to me, regardless of what the measurements say. Measurements ca... 
Harley quote
I don't get it. Music is all about personal perception and emotional engagement. Arguing that someone couldn't possibly hear a difference because the measurements don't show it makes no sense. If a particular listener prefers one product over anot... 
Krell Class A/B power amps, do 'anticipator circuits' work?
Here is a link to Dan D'Agostino's patent for plateau bias. This describes, in general terms, how his circuit works. https://patents.google.com/patent/US5331291 
High end Class D amps?
@djones51 - if your definition of an ideal amp is a perfect voltage source, meaning an amp with zero Ohm output impedance, then a class D amp gets closer to this ideal than any other amplifier topology. Class D amps have much lower output impedanc... 
High end Class D amps?
You make it sound like the Wilson Alexia is the most popular speaker on the market. How many of these has Wilson sold? I’ve owned a lot of speakers over the years and none had an impedance curve that dropped below 2 ohms. If you own Wilson Alexias... 
Schiit order issue - anyone receiving shipments?
Clearly, schiit is having financial problems.  If it were just COVID they would say this. So it’s more. While I agree that they should do a better job communicating product delays, it's pretty ridiculous to assume they are having financial pro... 
Schiit order issue - anyone receiving shipments?
Schiit designs and builds products that deliver excellent value at lower price points, and does all their manufacturing in the US. This approach appeals to a lot of customers which has allowed them to grow very rapidly over the past ten years. But... 
Something amazing - what would you buy
I'd recommend against spending so much on a projector. The technology is changing to fast and you'll find yourself wanting to upgrade in a few years and your investment Will have depreciated dramatically. At one point, I spent a rediculous amount ... 
Balanced vs. Unbalanced Inputs
RCA connectors can't carry a balanced signal. You need to use cables with XLR connectors to support balanced.  
Schiit amps, freya preamp
I'm pretty sure the Freya+ isn't fully balanced. It converts balanced to single-ended and back to balanced on the outputs. It's still a nice preamp for the money. I owned one of the original Freya preamps for a little while and thought it had a ni... 
Upgraded cords for linear power supplies?
I'm sorry to bring this up again, but if the spec of your power supply is an AC output, it is NOT a linear power supply, even it the (Swagman) box it is in is labeled as such. Why do you say this isn't a linear power supply? It looks like it ha... 
High end Class D amps?
I don't have access to the documentation for the Hypex modules used on these amps, but the connector is the same (except for one status line) as the Purifi module. There is no provision on the Purifi connector to bypass the driver circuitry. I sup... 
Class D
@audio2design Yes, that is what I meant. Sorry if my language wasn't clear.  
Class D
As @audio2design points out, EPDR does not apply to class D amplifiers. However, the efficiency at which a class D amplifier operates is reduced as load impedance goes down since the output transistors will be conducting more current during their ...