JBL 305P MkII, $109 each

[Blumlein 88]

What is H3?

In the distortion plot at the link above, H3 is the third harmonic distortion curve.

Oh well Maty beat me by 2 seconds.

 

[Old Listener]

Third harmonic. The sound is more artificial, less natural, more detailed too. Hearing fatigue.

If you listen to superprocessed music in the studio ... but if you want to enjoy excellent recordings with acoustic instrumentation it is better to avoid the predominant H3 profile.

Which is better?

H2 @ -20 dB, H3 @ - 30 dB

or

H2 @ -50 dB, H3 @ - 40 dB

Quantity matters.

 

[Ron Texas]

Third harmonic. The sound is more artificial, less natural, more detailed too. Hearing fatigue.

Thanks, I thought it was heavy hydrogen.

 

[Juhazi]

H3 peaks are often mechanical resonances, which are typical for these cheap lightweight actives. I fixed my LSR305 with an added brace between vertical side panels. This is the fixed version's distortion plot. I didn't save the original, but it ringed and peaked at 250Hz (panel resonance)

 

[maty]

Which is better?

H2 @ -20 dB, H3 @ - 30 dB

or

H2 @ -50 dB, H3 @ - 40 dB

Quantity matters.

The first has too much (level) harmonics!

 

[maty]

To have a reference, expensive active speakers with DSP and Hypex NCore.

Grimm Audio LS1

[PDF] https://www.grimmaudio.com/site/assets/files/1088/speakers.pdf

 

[Ron Texas]

Me want cookies!

 

[IVX]

Not sure if I measured the same model but similar and it has awful hiss noise SNR -86dbA, also its Amp has .5% THD+N at -3db. People who designed the Amp-panel called that performance as "marginal" )) Actually, it is a flaming chinese passion to save money + ugly ST class D IC STA350BW met each other.

 

[daftcombo]

I saw those measurements before; I found this document:

https://docs.google.com/document/d/...RfmdIzx6vDRPjzfbCg/mobilebasic#h.w4gf4uczr44h

The pricing you mentioned appears to be common with many other retailers including zzounds and amazon. From those measurements, it seems like reducing tweeter level by 1-2db would probably result in the most linear response.

Nevertheless these are good measurements for a speaker without DSP correction.

Hi,
Did you set the jumper to reduce tweeter output, at the end of the day?