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Audio Hardware / Re: Crown amplifiers for home audio?
Last post by KozmoNaut -
Why would you use a PA amplifier for hi-fi home use? These amps are not designed with home hifi use in mind. They are solid build amplifiers, but could lack the 'finesse' you would expect from a good hi-fi amplifier.

This smells distinctly like audiophile BS.

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I have used a PA amplifier myself when I was a teen and I remember is sounded very dull and lifeless, but was able to drive big speakers very loud, just what they are made for.

Yep, it's manure.
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Audio Hardware / Re: Crown amplifiers for home audio?
Last post by mitchco -

The Crown XLS Series 2 amps are an excellent choice for home hifi use. I own the XLS 2502, it's quiet, stays cool and is green at the wall. There has been absolutely no fan noise in the background, ever. In fact, I don't think the fan has come on even once. You won't go wrong with one of these amps.

Agree. I use an XLS 1502 in a home hifi setup, sounds good to my ears. I have not heard the fan turn on once.
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I fixed the problem
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Hi Case,

Thanks.
However it seems the plugin stills in 1.0 on the download page.
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FLAC / Re: FLAC Truncated? (Audio Checker)
Last post by brandonluciano824 -
Yes. (https://www.7digital.com/). Also from artist's bandcamp pages where before I downloaded mp3 from instead of FLAC when I had the chance.

I am going to redownload just to be safe. I noticed the very last second of each track doesn't end properly and just comes to a abrupt end. I guess that was the error that audiochecker found.
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Vinyl / Re: 33 vs 45rpm -- Technical Differences
Last post by Atmasphere -

IME most single play 45's are hastily made with quick delivery in high volumes being of the essence. LP's are very sensitive to care during production and sacrifice that, and SQ quickly follows it. The performance of EP and LP 45s could follow their technical advantages more closely.


These days 45s are usually attempts to make a higher quality recording so you see most 45s in a 12" format; and often a full length project rather than a single. The days of the 7" 45 are long gone. Most of the singles I see these days are 12" 33 rpm.
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Yes, for example with foo_upnp plugin.
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As far as input sensitivity goes, for the XLS series it is 0.775 or 1.4 volts RMS for full output. Connecting an unbalanced input cuts that in half, so the 0.775 volt setting is the one to use, and it gives you an actual 1.5 volt sensitivity which is pretty common for consumer amps. IOW, no problems expected on this front.

https://www.crownaudio.com/en/products/xls-1002
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Audio Hardware / Re: Crown amplifiers for home audio?
Last post by Hubert Watson -
I am considering the crown amplifiers: XLS 1502 DriveCore 2 series.
https://www.crownaudio.com/en-US/products/xls-1502

Has anyone used these for home audio use? Would like to hear experiences. From what I have read on forums they are good and sound neutral.

A few things I have questions about:

1. Fans. Wondering if anyone has used these and if this is a problem, if so can it be fixed?

2. Preamplifier:
What would be good recommendations? The sensitivity can be set to 1.4Vrms or .775Vrms (this will lower the S/N by 6 db). Do I need to consider impedance when  matching the preamp and power amp? features? Hoping to find something economical: there is a used shop I can check out, and online.

3. Power output: How Crown measures watts
"The test is simple: the amplifier is set up with the level controls turned to the maximum setting, and then a connected sine wave source is increased until  the specified total harmonic distortion is reached"

I'm not sure how this compares to other amps. What would be the equivalent measuring 20-20khz?

I thought this would be a more economical way to get a amp than a HiFi shop. It can do well into 4 ohms.

Joe

The Crown XLS Series 2 amps are an excellent choice for home hifi use. I own the XLS 2502, it's quiet, stays cool and is green at the wall. There has been absolutely no fan noise in the background, ever. In fact, I don't think the fan has come on even once. You won't go wrong with one of these amps.
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Audio Hardware / Re: Crown amplifiers for home audio?
Last post by DVDdoug -
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3. Power output: How Crown measures watts
"The test is simple: the amplifier is set up with the level controls turned to the maximum setting, and then a connected sine wave source is increased until   the specified total harmonic distortion is reached"
I'd trust Crown's specs more than most manufacturers.  ;)

And, I'm pretty sure you'll have plenty of power to rattle your walls and damage your hearing... and blow your speakers :D (unless you also have pro/PA speakers).

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2. Preamplifier:
What would be good recommendations? The sensitivity can be set to 1.4Vrms or .775Vrms (this will lower the S/N by 6 db). Do I need to consider impedance when  matching the preamp and power amp? features? Hoping to find something economical: there is a used shop I can check out, and online.
I don't have a preamp recommendation.   It depends on what features & inputs you want.

Hopefully you can find the output-voltage specs.    Consumer line level might not drive the amp to full power, but consumer equipment isn't necessarily line level anyway so the outputs might be a little hotter.

Impedance is NOT an issue.    You don't want to "match" the impedance.   You want the preamp's source impedance to be much lower than the power amp's input impedance.  The preamp/line output has relatively low source impedance (typically  1K  Ohm or less) and the power amp has relative high impedance (typically 10K - 100K).

...Preamps (and separates in general) are sort-of "outdated" in the age of digital inputs, home theater, and surround sound.    And unless you are using a turntable you don't actually need "preamplification", you just need a switching/control center.