KVR Audio

Friendly Noise · Post by **Friendly Noise** » Fri Sep 10, 2021 7:04 pm

Not scientifically accurate, but I hope it can be helpful:

AdvancedFollower · Post by **AdvancedFollower** » Mon Sep 13, 2021 12:17 pm

Eris 3.5: 55 Hz (quite surprising as their range is 80 Hz - 20 KHz in the specs

DT 1770 Pro: 25 Hz

(there's still some audible content below those frequencies, but I'm assuming that's aliasing/compression artifacts)

chk071 · Post by **chk071** » Mon Sep 13, 2021 12:24 pm

JBL LSR305. 43 Hz according to the specs. Which is a bit of a laugh, because I hardly hear anything below 50-60 Hz really...

BertKoor · Post by **BertKoor** » Mon Sep 13, 2021 1:41 pm

Perhaps no surprise, total silence even at 100Hz on my mobile phone internal tweeter. A jabra bluetooth headset drops off at 50Hz. My MacBookPro's internal speakers went down to 55Hz and were pretty much silent at 50Hz. My earbuds went down to 30Hz but were silent at 25 Hz. Same as my passive Alesis MonitorOne set, specced at 45Hz -3dB. But those did produce a bit of 25Hz when connected via a bluetooth receiver instead of the laptop's headphone output.

AdvancedFollower wrote: Mon Sep 13, 2021 12:17 pm Eris 3.5: 55 Hz (quite surprising as their range is 80 Hz - 20 KHz in the specs

Tech specs usually quote the point where the curve isn't flat anymore. They should state whether it's off by -3dB or -10dB or whatever. Presonus did not specify this. It's possible they noted the -2dB point and what you can still hear is -20dB, in other words: the slope is not so steep.

AdvancedFollower wrote: Mon Sep 13, 2021 12:17 pm DT 1770 Pro: 25 Hz

(there's still some audible content below those frequencies, but I'm assuming that's aliasing/compression artifacts)

Not likely, those live typically in the range of 5kHz and above and there is a bit of that indeed. You are aware ofcourse you should only pay attention to the lowest bass frequency only?

xtp · Post by **xtp** » Wed Sep 15, 2021 9:17 am

This was interesting. I have an old 70's Akai AM-2250 hooked up to my computer with the original floor standing speakers and they sounded down to 25hz but i know i can't hear below 22hz so i have no idea if they sounded or not when the 20hz tone came on.

gravehill · Post by **gravehill** » Wed Sep 15, 2021 9:34 am

Genelec M40 with KRK s.10.4 sub about 40Hz
Beyerdynamic DT 880 Pro headphones 25Hz

Dirtgrain · Post by **Dirtgrain** » Wed Sep 15, 2021 8:55 pm

JBL-308 MK2 8"

I can discern it at 35 Hz, and at 30 Hz it is very hard to discern but still noticeable.

AdvancedFollower · Post by **AdvancedFollower** » Sun Sep 19, 2021 9:48 pm

BertKoor wrote: Mon Sep 13, 2021 1:41 pm Not likely, those live typically in the range of 5kHz and above and there is a bit of that indeed. You are aware ofcourse you should only pay attention to the lowest bass frequency only?

A true sine wave only has one frequency, the fundamental frequency. That's why there shouldn't be any audio content at other frequencies unless artifacts were produced somewhere in the chain.

thecontrolcentre · Post by **thecontrolcentre** » Sun Sep 19, 2021 10:09 pm

Genelec 1091A sub with 1029A monitors goes down to 38hz ... in the test 40Hz was the lowest tone I could hear on them.

chk071 · Post by **chk071** » Sun Sep 19, 2021 10:11 pm

I'm a jerk. Didn't even realize that there is an actual frequency test in the video when I posted my first post.

Thought it should be a general discussion about the frequency range of your speakers...

Well, the JBL LSR305's did 45 Hz just fine. Silent, of course, but, it's there. Even still hear something at 40 Hz, but, I really have to crank up the volume for that.

They obviously do what was advertized: 43 Hz. I'm happy.

Big peak at 55 Hz, BTW, which probably has to do with my room, and the response of the speakers (they have a hole on the back). Probably need some more space to the wall behind them.

How low can your audio system go?