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Crown XLS2502 Stereo Amplifier Review

Obviously not ;) Nevertheless my point is that it is not so obvious to achieve the same quality level from D-class amp like from hi-end power amp. If it would be so easy I would sell Levinson gear (which is big, super heavy and heats my whole room so quickly) and replace by much cheaper crown pro amp.
You’re getting warmer.
 
Obviously not ;) Nevertheless my point is that it is not so obvious to achieve the same quality level from D-class amp like from hi-end power amp. If it would be so easy I would sell Levinson gear (which is big, super heavy and heats my whole room so quickly) and replace by much cheaper crown pro amp.
Just how do you define this audio quality difference between an undefined class D amp vs an amp that may well be more talk than action? Eh?
 
Just how do you define this audio quality difference between an undefined class D amp vs an amp that may well be more talk than action? Eh?
Stop it! - you know that the standard measure of amp quality is kg (or lb's for those nations that have difficulty with standard units...)
 
I have tested this crown amp in typical hi-fi setup. It's OK sound as for PRO standards (so non typical boomy DJ sibilant sound), BUT... there is nowhere close to hi-end AB class amplifiers. I found some rather fanboys opinions on internet that this amp (XLS2502) outperformed krell mono blocks like 350mcx or Bryston amps... seriously? No way... actually I had in the past krell 350mcx amps, now I have Levinson 336 amplifier, and sorry to say... but this crown is not even close. This power is more on the paper. With levinson amp you are overwhelmed by 3D sound with scary strong / bass rattling your couch (you can feel the energy with your whole body / real power). Nothing like this is happening on crown amp. Even the bass is rather 'weak' /shy. Not complaining that much as I'm testing this amp for typical subwoofer use, however wanted to share some honest "non-fanboy" opinion.
I think more likely caused by pre-amp voltage.
 
I think more likely caused by pre-amp voltage.
Winner winner chicken dinner! Absolutely. Plus sighted tests and on and on. Blind tests at the home level are fairly easy to do and it is still more than anyone wants to do. It is not hard at all. I have offered on ASR many times to help walk someone through what is needed for a blind test at thome. It does not need to be an engineering level test at all. The human hearing and brain interference is so large that a "rough" home blind test will defeat 99.99% of all people. Most of what people think they can hear they can't really hear. But I can't change people's belief that they have God level hearing. Even better than the APX-555. Oh well.
 
My IceEdge 1200AS2 also sounds less "dry" than the XLS2502 if you swap them 1:1. But that doesn't take away that I just ordered 2 additional XLS2502 with the BF discount. I love these amps!
 
Very close to clipping in the infrasonic range and I could definitely push them over the edge with certain movie clips. With the XLS2502 that limitation has been moved upwards what gets a bit scary.
Scary bass = good bass IMO :)
 
Very close to clipping in the infrasonic range and I could definitely push them over the edge with certain movie clips. With the XLS2502 that limitation has been moved upwards what gets a bit scary.
That's the best kind of scary.. :) Being limited in sound pressure level only by your prioritization of hearing health, rather than by the equipment's capabilities. If it can produce frightening levels of sound without distortion, I highly recommend that you take note of the measured SPL at different volume settings; otherwise, you may find yourself in the danger zone more often than you realize.
 
That's the best kind of scary.. :) Being limited in sound pressure level only by your prioritization of hearing health, rather than by the equipment's capabilities. If it can produce frightening levels of sound without distortion, I highly recommend that you take note of the measured SPL at different volume settings; otherwise, you may find yourself in the danger zone more often than you realize.
Oh I do pay attention to avoid excessive SPL. Sometimes I play music/movies at reference level but most of the times I keep it sane.
 
Happy listening! -What's your setup?
Many thanks!

I have a Denon AVC-A1H in 7.4.6 powering all speakers except:

IceEdge 1200AS/2 power amp for the Audiovector QR7 main speakers.
XLS2502 #1 stereo for 4x Visaton TIW400 DIY sub.
XLS2502 #2 mono bridge for 2x B&C 21SW152/8 DIY sub.
XLS2502 #3 mono bridge for 2x SBAudience 21SW1100D DIY sub.
XLS2502 #4 mono bridge for 2x Faital Pro 18XL1800 DIY sub.
XLS2502 #5 still waiting in the box until I start building the replacement of the old Visaton.
 
Many thanks!

I have a Denon AVC-A1H in 7.4.6 powering all speakers except:

IceEdge 1200AS/2 power amp for the Audiovector QR7 main speakers.
XLS2502 #1 stereo for 4x Visaton TIW400 DIY sub.
XLS2502 #2 mono bridge for 2x B&C 21SW152/8 DIY sub.
XLS2502 #3 mono bridge for 2x SBAudience 21SW1100D DIY sub.
XLS2502 #4 mono bridge for 2x Faital Pro 18XL1800 DIY sub.
XLS2502 #5 still waiting in the box until I start building the replacement of the old Visaton.
And in the back yard, you keep a power station operational feeding it juice ;)
 
Many thanks!

I have a Denon AVC-A1H in 7.4.6 powering all speakers except:

IceEdge 1200AS/2 power amp for the Audiovector QR7 main speakers.
XLS2502 #1 stereo for 4x Visaton TIW400 DIY sub.
XLS2502 #2 mono bridge for 2x B&C 21SW152/8 DIY sub.
XLS2502 #3 mono bridge for 2x SBAudience 21SW1100D DIY sub.
XLS2502 #4 mono bridge for 2x Faital Pro 18XL1800 DIY sub.
XLS2502 #5 still waiting in the box until I start building the replacement of the old Visaton.
Wow, that’s an alarming number of high-performance subs in one room!

Do you live in a steel-reinforced bunker by any chance?

Here; I found your house curve:
1733543546690.png


/friendly banter :p
 
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