GR Research LGK 2.0 Speaker Review (A Joke)

[voodooless]

Harmonic distortion is anyway unfortunately not a great metric to correlate with audibility, would be more interesting to compare the intermodulation distortion of both where the 2-way KH80 would be also superior, see also

With these kind of distortion figures, IMD will be bad as well.

Then again, I would be a fan of having multitone measurements for speakers (and headphones). I think Amir tried that once and found too many issues with the comparably of the measurements. I’d say: give them anyway

 

[FeddyLost]

Use it as a midrange in a three-way construction.

Even for decent 3-way mid it's too small and heavy (= inefficient) at the same time.
I'd prefer something else. Even proper Seas Prestige will perform better.

 

[McFly]

There isn't a chance the 90db sweeps damaged the driver?

 

[DanielT]

Even for decent 3-way mid it's too small and heavy (= inefficient) at the same time.
I'd prefer something else. Even proper Seas Prestige will perform better.

Maybe not the most suitable either (midrange in three-way solution) but IF you had to do something with that driver? But as you say, there are others.

With that said, I'm not an experienced DIY but someone who SHOULD be is Danny! He is a professional.Professional, that he makes money on his speakers and the crossover upgrade he sells.

Also seen in the light of what Amir wrote:
"...fully finished pair ($ 1,038)"

It's a rip off!

 

[voodooless]

he sells.

That’s exactly what he’s Professional at..

 

[TrevC]

Wow, it looks like a lot of ”smearing” below 500 Hz. 5-100%? Did he use cheesy crossover parts?

Or tube connectors?

 

[thewas]

With these kind of distortion figures, IMD will be bad as well.

Yes, although even worse compared to a multiway speaker where the other drivers are not affected by the modulation of the woofer.

Then again, I would be a fan of having multitone measurements for speakers (and headphones). I think Amir tried that once and found too many issues with the comparably of the measurements. I’d say: give them anyway

Fully agree

 

[MZKM]

Preference Rating
SCORE: 3.7
SCORE w/ sub: 6.5

Sensitivity: 80.7dB (300Hz-3kHz ; spec: 84dB)
Frequency response: +/- 4.1dB 80Hz-20kHz

​

 

[Loathecliff]

I await the dismissive remarks from Danny:-
1) "It should have been obvious that the driver had a fault".
2) - (Gulp) - "The enclosure build quality is critical. They got the port dimensions wrong".
3)??

 

[abdo123]

Jesus, so for everything below 80Hz you're essentially listening to just distortion?!
View attachment 211745

View attachment 211744

It’s a 3-inch driver, the smallest that Amir has ever measured.

 

[voodooless]

2) - (Gulp) - "The enclosure build quality is critical. They got the port dimensions wrong".

The kit includes the flat pack. If the port is wrong, it was designed that way

 

[thewas]

It’s a 3-inch driver, the smallest that Amir has ever measured.

The Fostex he had tested though is also 3 inch, active and costs a fraction.

Fostex PM.03 Active Speaker Review

This is a review and detailed measurements of the Fostex PM.03 active monitor/speaker. It is on kind loan from a member who bought it new from drop.com and had it shipped to me. I think the model is discontinued and I can't find an accurate price for it. The owner paid US $90 on drop. The PM.03...

www.audiosciencereview.com

 

[abdo123]

The Fostex he had tested though is also 3 inch, active and costs a fracture.

Fostex PM.03 Active Speaker Review

This is a review and detailed measurements of the Fostex PM.03 active monitor/speaker. It is on kind loan from a member who bought it new from drop.com and had it shipped to me. I think the model is discontinued and I can't find an accurate price for it. The owner paid US $90 on drop. The PM.03...

www.audiosciencereview.com

What a cute little thing!

 

[voodooless]

The Fostex he had tested though is also 3 inch, active and costs a fracture.

Really? What bones?

But distortion on these is also bad. Seems to be a lot less audible though.

 

[thewas]

Really? What bones?

But distortion on these is also bad. Seems to be a lot less audible though.

Yes, probably less IMD.
Fracture should be fraction of course, too few sleep last night.

 

[Loathecliff]

The kit includes the flat pack. If the port is wrong, it was designed that way

Err.... "Rick S used the wrong glue"

 

[amirm]

There isn't a chance the 90db sweeps damaged the driver?

No. I run my distortion tests before the NFS scan. If the driver was damaged the spin would not look as good as it did.

 

[JSmith]

he and others think my reviews are a joke

Wow... what a complete asshat.

The only joke here is this kit speaker... is it a cruel joke on customers?

Not only do these drivers sound better than the previous generation but also even measure better.

Max peak power full range: 30 watts.
Max peak power with first two octaves removed: 60 watts.

LGK 2.0 Woofer | GR-Research

gr-research.com

JSmith

 

[uwotm8]

Well, this thing is actually a typical B-category DIY in a nutshell
I bet that a pair or 65mm Tectonic BMRs put in almost any junk box will sound overall better due to bass that part of it they can reproduce handling abilities

 

[delta76]

While this is a great review by Amir, and a great service to the society, I don't think anything will change sustainably, sadly. He will either ignore this, or dismiss the results as inaccurate/the methodologies are faulty/we can hear things that are not in measurements etc., and hist followers/believers will believe what he said.

Sometimes it's sad to be reminded about the world we live in, but well,