NikotheNeko
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- Jun 21, 2018
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I use a JVC rx-1001v
@DonH56 You are right! I have owned DC300's before - LOL! Sorry, I was responding in the wrong thread, I thought this one was the which $500 amps to test. I was giving @amirm a hard time for not testing this amp already and putting to bed the zillion posts on why these Crown XLS amps suck ... or not...
The XLS amps has easy switching between consumer and pro levels, balanced or unbalanced operation, a fan that I have never heard turn on, even when the amp is abused for hours... Wrt to trigger, it is still a pain, but possible...
Hey Mitch,
I agree with you (natch), that's why I asked. Bet we both had DC300's at one point as they were they only reliable high-power amp around for a while... I had a Phase Linear 700 (first generation) for a while; I sold it after repairing it the third time it blew up and took out a speaker.
When a Crown has fallen down in a consumer system IME it has been due to level mismatch (pro vs. consumer levels) leading to noise with high-sensitivity speakers. And of course you have to deal with their pro-type turn-on vs. the consumer trigger voltage mismatch (or manually power cycle them, like most of us did for decades). They have amps now that deal with the level issue, not sure about trigger circuits (they'd have to decide if the expense was worth it for the sales potential). I think they should do like some other companies and add the trigger circuit, bump the gain for consumer input levels, wrap it in consumer-looking sheetmetal, and sell it for 2x the price. Or maybe 10x to be more in line with other audiophile amplifiers...
I imagine that rig could majorly ROCK.My first serious setup was Crown DC300A, DC150, IC150A, OC150A. I was 15 and found them in the classifieds of someone that was moving into a house and wanted it gone. $400 for everything in 1987 and had a buddy drive me.
I built a pair of Karlson horns and added some tweeters and bi-amped. I ran with that heavy as heck stack for 7 years.
I imagine that rig could majorly ROCK.
With that I didn't need to drive for 5 years since I had plenty of people willing to get me where I needed to go just so I could do the house parties.
Don, from my perspective, the Crown XLS DriveCore 2 series is a steal. And does get very good reviews: https://www.amazon.com/Crown-XLS1502-Two-channel-Power-Amplifier/dp/B011X2HTZC#customerReviews I use this amp in a triamp setup from 40 Hz to 630 Hz to drive JBL double 15" 4 ohm cabs with high efficiency woofers. Granted I have not used the amp in a full range setup, but as one can see from the Amazon reviews, many folks are using this amp in consumer setups with great results.
For $399, I would suggest this amp (and the XLS series) is real bargain. However, some folks feel tbat it can't possibly sound good at that price point. That's why I would love to see @amirm measure one of these bad boys to see if it is the real deal or not. Until then, it seems to be all speculation...
And of course you have to deal with their pro-type turn-on vs. the consumer trigger voltage mismatch (or manually power cycle them, like most of us did for decades). They have amps now that deal with the level issue, not sure about trigger circuits (they'd have to decide if the expense was worth it for the sales potential).
The AP can handle up to 178 volt input (RMS). That means it can measure almost 4,000 watts at 8 ohm and 8000 watts in 4 ohm! So it is not the limitation at all.Does Amir have equipment for testing power amps? I thought his AP unit was limited to testing low-level signals.
@jhaider - no, I have searched and found a few tests to confirm max output on AVSforum, but no frequency response or wide band distortion measurements. It would be awesome if you could measure...
The 1502 has a 12v trigger!
He is pretty confused. Nothing about a class D impacts the depth."Depth. That’s what you get with a good A/B amp that you just can’t quite touch with even the most excellent Class D.
He is pretty confused. Nothing about a class D impacts the depth.
What class D does is impressive bass response due to high efficiency and lots of power.
What’s depth? How do you measure that?
The old cliche "all generalizations are false, except this one" applies.I found this an interesting sales article, might upset a few people here.
Written by a gentleman named Duncan Taylor, my technical expertise is out for lunch, but he does say a few things that ring home with me.
A sales speel is involved but -------------------------------
"Depth. That’s what you get with a good A/B amp that you just can’t quite touch with even the most excellent Class D.
Sorry, it’s the truth. Most Class A/B amps on most loads at most volumes stay in Class A anyway, and there’s no contest.
Sure, you can optimize the path of the power to your Class D monoblocks, use isolation bases to minimize vibration, place Shakti Stones or other EMI/RFI filters over the PCBs, put on your voodoo suit and hail the demon gods of audio to deliver Nirvana.
Or you can plug in a high quality A/B amp and never look back.
That pesky switching frequency and the usual harmonics of Class D just end up getting in the way of the sheer magic that is possible with the world’s best A/Bs.
Even if you eliminate the upper harmonics and create a harmonic structure similar to tube amps, as PS Audio does with the Stellar S300 amplifier I use for testing, you can’t quite match the subtle details an A/B brings that make up perceived depth in a soundstage representation.
Amp designers will say most tube amps offer more positive and negative second order harmonic distortion — low order as opposed to the high order of Class Ds. Sense of depth is connected to a touch of second order, but that’s not the whole story.
Signal purity, phase correctness, wide bandwidth at full power — these are other hallmarks of an amp that will expand the sound to the back walls and beyond."
https://tmraudio.blogspot.com/2018/...173644581&mc_cid=892d6c251b&mc_eid=04329ee09d