Buckeye NC252MP Stereo Amplifier Review

[antcollinet]

View attachment 315689

 

[daniboun]

Sometimes I think that the best parameter to list them is their actual task: Gain and Power for a given voltage input.
Cause a lot of tricks can be played with them.

For my part I would say "the best parameter to choose" not only "to listen".
I think that for the same module, what should allow us to make the choice between the different manufacturers/integrators is what revolves around the module. In the end, it is the finishes, the quality of the Buffer and the design that differentiate the offers.

I have a great example in mind. I remember the ASR review of the IOM NCore Pro NC252MP. It probably has a more accomplished design than its Buckeye / Audiophonics competitors but the assembly quality of the IOM is mediocre. (cables not twisted, ground issue, bad solders etc...)

The pictures speak for themselves...(I wonder how Amir was able to recommend that IOM given all the internal flaws that were found...)

 

[AudioKC]

Oh, you can hear 1 GHz. Wow. Congrats!

This is not constructive.

 

[chris256]

He apparently wants arc welder performance for a low cost.

No. See here. I just want to have fair information. That's all.

The class D amps as a class can do low frequency and low Z but the build needs to be much more heavy duty and have many more FETs.

No. See this example. It's basically nearly empty.

 

[chris256]

This is not constructive.

Yes. You nailed it. You mentioned the GHz - not I.

 

[AdamG]

Yes. You nailed it. You mentioned the GHz - not I.

I don’t understand what you are here for. Are you asking for help understanding or are you here to teach us what’s up? Based on your comments and cheap shot for an obvious typo, I’m giving you a time out. Spend more time reading and learning and less time making comments that have no basis in fact.

Here is a link for you to brush up on how to read, interpret and understand all the different charts and graphs.

Master List of Instructional Teaching Video presentations (How to read and interpret/understand all the Graphs and Charts!

Collection of Amir’s instructional Videos for reference, refresher and new members: (“Behind the Curtain @ ASR University”) Welcome New and returning Members of ASR. Our Host Amir has put together a collection of comprehensive instructional videos that might help new and returning Members...

www.audiosciencereview.com

 

[TonyJZX]

this thread shows that the people who hate your stuff the most are the ones who would never buy it

never! nein!

 

[Doodski]

No. See here. I just want to have fair information. That's all.


No. See this example. It's basically nearly empty.

Your amplifier example is not representative of what I am stating. The example is still not a monster amp arc welder thingy. That requires more than your example. To have linearity both in frequency and power requires more than anything you have mentioned thus far. That and your example is a totally different build type.

 

[IAtaman]

Based on your comments and cheap shot for an obvious typo

I am not sure if it that was a typo actually. I think someone really tried to make a point of this amp having no power at 1GHz and he was responding to that.

 

[IAtaman]

The issue is, that you (correctly) say that the device provides 250 W @ 4 ohms @ 1 kHz but you didn't tell the customer, that the device only provides 122 W @ 20 Hz @ 4 ohms. I

I think it has been explained many times, it is not 122W @20Hz so I presume you see that by now too. But, this amp has shortcomings at lower frequencues, and in my opinon all justifications to make it look like those shortcomings don't matter are, well, justifications only. This is not a great performing amp. Is it good for its price - I don't know, that is very subjective.

Your anger to the manufacturer is misplaced though in my opinion. Buckeye's specs are quite good and detailed and is not misleading. There is a lot to a product's performance than what the spec sheet says, which I am sure you are aware as you seem to be reading reviews on ASR.

 

[IAtaman]

He apparently wants arc welder performance for a low cost.

The guy is complaining that the amp can not achieve its rated 250W at 20Hz if I understand him correctly. How is that "wanting an arc welder"?

 

[Doodski]

The guy is complaining that the amp can not achieve its rated 250W at 20Hz if I understand him correctly. How is that "wanting an arc welder"?

For flat frequency response and linearity in power output more substance is required. I slang that and call it a arc welder amp. Usually costing several thousand+ or more. He expects too much for the expense of the class D amp.

 

[Buckeye Amps]

The guy is complaining that the amp can not achieve its rated 250W at 20Hz if I understand him correctly. How is that "wanting an arc welder"?

The 250w rating is at 1KHz

 

[TNT]

Looking at that product page I think it does not contain proper consumer information wrt. its power capabilities. It lacks a power bandwidth figure.

//

 

[IAtaman]

For flat frequency response and linearity in power output more substance is required. I slang that and call it a arc welder amp. Usually costing several thousand+ or more. He expects too much for the expense of the class D amp.

I disagree. You dont have to go too far or too expensive to find amps with better performance at lower frequencies. 6 channel Buckeye amp from 2020 that costs $1150 does much better for example.

Buckeye 6 Channel Amplifier Review

This is a review and detailed measurements of the Buckeye Hypex NC252MP based, 6-channel amplifier. It costs US $1149 as of this writing. The owner/builder is @Buckeye Amps on our forum. The looks are fine for a well-priced build: The unit is quite light courtesy of rather thin sheet...

www.audiosciencereview.com

 

[IAtaman]

The 250w rating is at 1KHz

Yes, I understand. I am not saying there is anything wrong with the rating.

 

[Buckeye Amps]

Yes, I understand. I am not saying there is anything wrong with the rating.

Ohh, my apology. I re-read your post and see the syntax correctly now (I originally thought you implied the Hypex 250w rating was for 20Hz). My bad.

 

[Doodski]

I disagree. You dont have to go too far or too expensive to find amps with better performance at lower frequencies. 6 channel Buckeye amp from 2020 that costs $1150 does much better for example.

View attachment 315703

Buckeye 6 Channel Amplifier Review

This is a review and detailed measurements of the Buckeye Hypex NC252MP based, 6-channel amplifier. It costs US $1149 as of this writing. The owner/builder is @Buckeye Amps on our forum. The looks are fine for a well-priced build: The unit is quite light courtesy of rather thin sheet...

www.audiosciencereview.com

That amp has poor power output linearity compared to a arc welder amp. The frequency linearity is not the best either. But we are commenting about an amp that costs very little for what it provides

 

[Buckeye Amps]

I disagree. You dont have to go too far or too expensive to find amps with better performance at lower frequencies. 6 channel Buckeye amp from 2020 that costs $1150 does much better for example.

Same modules...as Amir pointed out even very subtle/miniscule things can change the resulting graph/rating between measurements (a loose test connection, etc).

 

[IAtaman]

Same modules...as Amir pointed out even very subtle/miniscule things can change the resulting graph/rating between measurements (a loose test connection, etc).

You think that is what we see here; a measurement artefact caused by a minor mishap?