SIGNAL TO NOISE RATIO 75dBA (A-Weighted), 70dBr (unweighted), relative to 2.83VRMS output
:nono::nono:
SYSTEM DISTORTION CRITERIA <10% THD at maximum output with full compressor / limiter engagement
ELECTRICAL DISTORTION CRITERIA 0.2% THD @ 1kHz / 2.83VRMS output; <1% THD @ 1kHz, full rated output
I don't see any indication of this being a per pair price. At $149 each it seems high. Haven't I seen these same speakers on here for $200/pr.?
* Passive: KEF Q100 is the best option if you like all type of music, very well interpreted and recorded.
* Active and < $200
To modern music, maybe the JBL 305 and others. But only to modern music, so badly recorded. And with a high volume so that the SNR is better. TV and movies too.
All type of music, very well interpreted and recorded -> Focal Alpha 50 but $250 x2.
The problem is the same: cheap class D amp.
In the old JBL you can hear hiss when they work in nearfield. You know, cheap class D amplifier.
After I bought the Schiit Bifrost Multibit to replace my old Yulong DA8 and trying to listen to the advantage of this "multibit" DAC, I started to feel like the "multibit" is more marketing maybe, that and measurements of the cheaper Schiit DACs are making me wonder about things.
As for why I chose RME it is a bit of a long story; a few months ago I bought the Massdrop JBL LSR-30X, and I can honestly say the sound quality for just $280 (even lower now) was just mind blowing to me. I usually listen to my HD 800, and I was expecting the JBL LSR-30X to sound vastly inferior and honestly I did not feel like the 30X sounded vastly inferior at all. I mean sure the HD 800 digs deeper and has more detail but the JBLs sound so good to me. In terms of enjoyment level the JBL is arguably even better possibly (HD800, I am slowly finding sounds a bit too bright for me?), my only gripes with the JBL is that the hiss at idle is very annoying cause I use them in nearfield and the connection options are all pro connection options and not really suitable to what I am using (Had to buy a few extra rca to xlr cables to get the thing to even work)...
I bought the 305 and listened to them for a month as well. no hiss at all. completely silent.
Such a problem can be caused by something with a lower s/n ratio than the speakers were designed to accommodate sending hiss from upstream. If any signal of any kind passes through the system, wouldn't you expect and want it passed on intact?
Considering that several testimonials refuting the pervasiveness of the problem have been issued by fellow members who own the product, I would be quick to assume that the reviewer in question needs to figure out why HE has a problem. Balanced lines might help. Blaming the product seems hasty to me.
How close to them were you? You have to be <1m away to hear it.
-Jim
One small fault was a very small amount of hiss/noise coming from the LSR305s, but once music was playing you won't notice the noise. Many other self-powered speakers have noise issues. The LSR305's noise is less noticeable than most...
You gotta wonder just where JBL gets off marketing an inexpensive active 2 way studio monitor that generates universal praise and hogs the industry awards without exceeding state of the art standards or proving itself to be utterly and unanimously without the smallest fault. Pretty cheeky, I'd say. They charge like $149 each for these things and don't even offer chartreuse or mauve. Plus, they aren't even made in the USA and you have to get them from those clueless pro audio types. Hello????
I was assuming, having never been there, that RMAF was pretty 420 already. No?I've never been there either.
You gotta wonder just where JBL gets off marketing an inexpensive active 2 way studio monitor that generates universal praise and hogs the industry awards without exceeding state of the art standards or proving itself to be utterly and unanimously without the smallest fault. Pretty cheeky, I'd say. They charge like $149 each for these things and don't even offer chartreuse or mauve. Plus, they aren't even made in the USA and you have to get them from those clueless pro audio types. Hello????
Audiophiles need to wake up to what the professionals are doing (true accuracy versus being entertained via delusion).
Lots of pros love tubes, analog tape, vintage mics, vintage eq, vintage compressors, etc.
...why did they move away from the good stuff... The AKG tube mics from the 40's and 50's have better SQ than any mics made today.
Been listening to the LSR305p Mk II for an hour so far. I tell you, nothing prepares you for the stellar fidelity these budget speakers produce! On my reference tracks it can be stunning, easily outperforming high-end speakers. I will do a review in a day or two when I have more miles on them. For now, I have to keep shaking my head on the level of detail, and absence of distortion. Level wise, I am listening at -22 to 0-15 db or so. Plenty of reserve power. I can't get them distorted before I get uncomfortable with the loudness!
The only downfall is that it absolutely will not play deep bass. It acts as if it is not even there. I think they may have smartly filtered that out. I will do some measurements to figure out. I should say though I have them out in open room in a very large space. Against the walls it may do better.
Mind you as soon as bass frequencies go up some, it reproduces them with incredible clarity. So it is not like a little whiny bookshelf speaker.
Absolutely, absolutely, incredible value and performance here! I don't care what system you have now. You need to get a pair of these and listen to them.
I am driving them with the Topping DX7 which makes a fantastic package with them. I hooked up a sub to the unbalanced output and let the balanced drive the LSRs. That gave me the lows but measurements and tuning is necessary for best performance there. Hard to imagine that this is a $600 package from DAC to amp and speakers!
They do unfortunately. It is a hiss that is audible to about 3-4 feet on-axis. If you go at just about any angle, it goes away very quickly.
Unfortunately no. I just checked and the noise is there unless the volume control is set at absolute zero. After the first notch the hiss comes and it's level does not change with volume.
An internal cross-brace made -25dB reduction in resonant sound, measured with backplate opened and knockin the side panel. Distortion peak measured at 60m (2') was reduced too. Me happy for solid 1 hour "work" on these. I hope that my daughter willl be happy too for her new desktop speakers!
So these cheap boxes suffer from various rattles and resonances in the cabinet, plastic front plate, metallic back-plate and wires wibrating etc. The loudest noise came from the box panels ringing like a bell with signal of 240Hz and around. 2nd harmonic means buzzing at 480Hz, 3rd ringing at 960Hz etc.
Resonances from cabinet walls and other mechanical parts are usually easy to fix. But if I wanted to make these hi-fi, I would construct new heavy cabinets, fill the backside of plastic front plate with something heavy and puttery and place the amplifier board outside the cabinet or in an isolated chamber. I am sure that the wise engineers at JBL know this too, bet they had to fit a certain retail price and still make profit with manufacturing! Nothing wrong with that!
Before it was the hiss and now the resonances, they are different problems.
We are talking about hardware, it is not personal.
This file will make LSR305 transient perfect when playing from Foobar.
Download "convolver" for Foobar and put this file "FIR.wav" to it.
After that 305's will play meander and will have ideal Step response when playing from Foobar.
http://www.diyaudio.com/forums/multi-way/320206-jbl-lsr305-tweaking-post5375313.html
Focal Alpha 50, 65 or 80 are much better options without any doubt. They are more expensive but they do not have those defects. To listen very good recordings. And without cheap class D amplifiers.
The problem is the same: cheap class D amp.
Sure, it's not perfect, but for the price sound good to me.
It was a bit disappointing considering all the rave 5 star reviews I read prior to buying them. Also, the published response was flat - not waivering like this.
Anyhow, even at $210/pair I did not think they were worth it. The mid bass was lacking presence and sound was just not clean enough I ended up returning them. The value would have been incredible had they sounded good. But IMO, a well designed passive 2-way with a solid cabinet and decent but budget drivers sound better.
Certainly, the GR Research XL’s are superior in flatness of response and distortion. Just missing the waveguide.
[French review] Focal Alpha 50
https://fr.audiofanzine.com/enceinte-active/focal/alpha-50/editorial/tests/focalpha.html
[IMG] https://medias.audiofanzine.com/images/normal/948527.png
Focal Alpha 50 en jaune et Dynaudio BM5 mkIII en bleu
* Focal Alpha 50: 258 €
* Dynaudio BM5 MKIII: 389 €
Off course. The key is in what kind of music you listen to and its recording quality. Modern/commercial music is very bad mastered, very bad. With DR < 8, 9 or 10 dB. And if it is over in MP3 or other loussy formats ... it is ilogical to spend a lot of money on the audio system.
I always emphasize that I mean very good recordings.
There are more measures in Diyaudio thread.
We need a shootout of $150 each studio monitors!
JBL
KRK
Mackie
Behringer
Yamaha
And how exactly does one put the .wav file into foobar? I have installed the convolver but can figure out how to add the file.
With bad recordings, JBL is a champion. Or with TV, films...
Using REW, send a 450Hz tone at -20dB to the system (JBL LSR 308 speakers), take an RTA with UMIK-1.
Note high level of 3rd harmonic distortion in the speaker output.
It is clearly audible.(https://audiosciencereview.com/forum/index.php?attachments/upload_2017-8-13_16-32-39-png.8134/)
A brief audition at any Guitar Center should convince you that no shootout is necessary. JBL will stomp the rest.Correct . I have done what you said . The JBL had the the most neutral sound out of that list .
You gotta wonder just where JBL gets off marketing an inexpensive active 2 way studio monitor that generates universal praise and hogs the industry awards without exceeding state of the art standards or proving itself to be utterly and unanimously without the smallest fault. Pretty cheeky, I'd say. They charge like $149 each for these things and don't even offer chartreuse or mauve. Plus, they aren't even made in the USA and you have to get them from those clueless pro audio types. Hello????
I have not listen the new JBL 305P and I have no interest in it.
Bass is well-rounded and strong without going over-the-top — which exactly what you would want from a pair of monitors that you’ll likely end up mixing on. The bass extension is quite a lot deeper than our old MR5 MKII speakers, but even when the speakers were mounted closer to the wall, which typically causes the bass to sound overblown, we didn’t experience anything beyond a small bump in the 130-140Hz area — which was actually subdued a little with the acoustic switch set to the right option. That makes a pretty serious case for Mackie’s acoustic switch — we can safely say that it’s not just a gimmick, despite our skepticism when we first got the speakers.
Pleasantly Surprised
I have 10+ years experience producing music full time. i'll be honest, i'm currently working with a pair of Adam 7x's and Dynaudio BM5's and I was looking for a 'junk' pair of monitors to use as a random reference point. I purchased these Mackie's without having listened to them and only because they were the right size and color. I hopped into a mix the day I got them (something I never do because I like to learn them first) and I was shocked. They suited my room and my ear perfectly. I've actually been using them more than my Adam/Sub combo. I do Hip Hop and Pop and I could probably get rid of my sub now. On top of all that they are translating extremely well! So surprised a pair of monitors under $400 are working this well for me. That being said I'm replacing my Dynaudio with these Mackie's. You don't need a brand name and a high price tag to get it done.