DIY7297, PSU, and Transformer Kit: Up on IndieGoGo
for whomever is interested, so this thread doesn't wander
for whomever is interested, so this thread doesn't wander
The 7297 has only a few clean watts before distortion, is this enough for most modern speakers?
The date of speakers is irrevelevent. The efficiency is what matters. The amp doesn't care much about impedance.
Compare the distortion of the Bryston 3BSST2, and consider it sounds dirty by comparison. The factors influencing the type of distortion, or end product distortion, are the most relevent compared to distortion level itself. I can assure you the system it's in, on that page, will let you know what's going on. We tried a speaker cable swap between his $2k cables and White Lightening, wow, it took all of 2 seconds to know how clearly different they are!
As I say often, distortion figures are indicators for what you are hearing, not an indicator for what you will hear in any typical non-malfunct design. As in they don't tell you anything really about what something sounds like, but once you're listening certain attributes may correlate to distortion; like a DAC sounding lively, musical, and you notice it has high distortion, that lets you know it may lack a digital filter.
Compare the distortion of the Bryston 3BSST2, and consider it sounds dirty by comparison. The factors influencing the type of distortion, or end product distortion, are the most relevent compared to distortion level itself. I can assure you the system it's in, on that page, will let you know what's going on. We tried a speaker cable swap between his $2k cables and White Lightening, wow, it took all of 2 seconds to know how clearly different they are!
As I say often, distortion figures are indicators for what you are hearing, not an indicator for what you will hear in any typical non-malfunct design. As in they don't tell you anything really about what something sounds like, but once you're listening certain attributes may correlate to distortion; like a DAC sounding lively, musical, and you notice it has high distortion, that lets you know it may lack a digital filter.
This is all perceived rather than measured? The Bryston is a $4K amp and the 7297 is a lunch money amp.
Do you have a point? The amplifier kit is $200 (shipped, lower 48) btw.
At $4k no one has EVER chosen an amp by the nothingness of measurement that tells you about how it sounds, except when there's a power min requirement.
No. That kind of arbitrary decision is made on much higher-priced amps, by the same people who buy $1000 speaker cables.
Just supposing, just supposing, changing out a few components makes a lunch money amp sound like a $4k amp, how long will it take for our friends in China to offer the exact same for $20?
Never, you can't get the parts that cheap; even if you buy thousands the price would remain above $150! Plus even if they "have" the parts they'll be counterfeit stuff. They might copy it somewhat. I doubt they'll understand all that makes it good, why, etc. In fact they're extremely likely to make a mistake that's easy to overlook and have non-functioning units.
I can say that if they copy a few of the things going on, they'll be able to make a better sounding amplifier than the current one without a doubt. It'll be good, but not great. But all said and done I'd appreciate them not copying my hard work; they probably don't care.
I use to think speaker cables were non-sense too, till I heard what a pair could do that cost more than that. However I couldn't personally justify the money, despite the overly obvious difference in bass.
Rhing has the amp atm, so maybe he'll chime in after he gets some real time with it.
I thought it'd be some subtle thing I didn't care about when I learned that very serious cable makers, that apparently know more than I, about something, even playing 1-2 watts, had a measurable difference in bass. It wasn't a capacitance overload or anything, most of the qualities were close to the same, but the bass was undeniable.
It was 14ga vs. 8ga with 1-2 watts.
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Yes. I think they're an older model that's an upgrade from these, but not nearly as expensive as their $9k present top tier.
Did you perceive the bass as being louder?
Also did you try with an average 8ga copper cable?
And finally, do you have an idea on why that might be happening?
Also did you try with an average 8ga copper cable?
And finally, do you have an idea on why that might be happening?
Threads should have a panic button which, when pressed, marks the title of the thread with an all caps warning about WIRE!
A couple of weeks ago I removed the left ear bud from a set of cheap headphones and then disconnected the left speaker from my lunch money amp and connected it to the left headphone output. The headphones were then plugged into the headphone output of a portable CD player.
I have no idea of the output in mw of the player but the 15 inch speaker produced a reasonable level, say background music, but the bass was a little muddy.
OK, carry on with expensive cable discussion.😛
Yes replace heaphone cable with Siltech Tripple Crown and bass will be much better 😉
Hey, no... I really want to know if indeed he did try another 8ga regular cable.
Might be a really large dynamic range that could account for the difference in bass between cables. Like huge dynamic range.
Might be a really large dynamic range that could account for the difference in bass between cables. Like huge dynamic range.
Difference in volume can be very easily measured with an oscilloscope.
Given the fact that our volume perception is logarithmic then whenever we can discern a difference in SPL that would be very easily be seen on an oscilloscope.
You should try a regular mains cable of 8ga, copper one. Should notice the same increase in volume.
A 14ga cable would bottleneck at 140W into 4ohm speaker (theoretically). One might usually listen to 1-2W and with a huge dynamic range you may notice an improvement when going from 14ga to 8ga.
Given the fact that our volume perception is logarithmic then whenever we can discern a difference in SPL that would be very easily be seen on an oscilloscope.
You should try a regular mains cable of 8ga, copper one. Should notice the same increase in volume.
A 14ga cable would bottleneck at 140W into 4ohm speaker (theoretically). One might usually listen to 1-2W and with a huge dynamic range you may notice an improvement when going from 14ga to 8ga.
I'm not sure Destroyer is doing himself any favours by suggesting he is able notice an audio improvement with different cables, not when he is trying to hawk his "improved" amplifiers based on his perception?
Normal music lovers would probably not notice the "improvements" of expensive cables and perhaps the "improvements" of a $200 lunch money amp would be wasted on them?