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JBL Professional LSR305 First-Generation 5" 2-Way Powered Studio Monitor (LSR305)
Brand | JBL Professional |
Model Name | LSR305 |
Speaker Type | Subwoofer |
Connectivity Technology | XLR |
Recommended Uses For Product | Adjustable,Volume Control |
About this item
- The original first generation of the legendary JBL Professional 3 series Studio Monitors
- The impressive performance of the 3 Series Reference Monitors is the result of JBL's development of its flagship M2 Master Reference Monitor
- Increased HF Detail: You'll experience greater depth and ambience in recordings, and subtle details can be heard, even in a dense mix
- Room-Friendly: This means you don't have to be right in front of the speakers to make accurate adjustments to your mix
- Broad Sweet Spot: 3-Series speakers deliver neutral sound across an unusually large working space regardless of room acoustics
- Flexible connectivity with balanced XLR and 1/4" TRS inputs, +4dBu / -10dBV input-sensitivity switch and adjustable volume control
- Purchase includes: LSR305 studio monitor (x1), Power Cord (x1), quick set-up guide (x1), peel-off rubber pads (x4)
- Pair with the JBL LSR310S Powered Studio Subwoofer to extend your LF range all the way down!
- SIGNAL TO NOISE RATIO:75dBA (A-Weighted), 70dBr (unweighted), relative to 2.83VRMS output
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Product information
Item Weight | 10.12 pounds |
---|---|
Product Dimensions | 15 x 13 x 10 inches |
ASIN | B00DUKP37C |
Item model number | LSR305 |
Customer Reviews |
4.4 out of 5 stars |
Best Sellers Rank | #75,447 in Musical Instruments (See Top 100 in Musical Instruments) #205 in Studio Audio Monitors |
Is Discontinued By Manufacturer | No |
Date First Available | August 1, 2013 |
Color Name | Black |
Speaker Amplification Type | Passive |
Output Wattage | 82 Watts |
Size | 5" speaker |
Power Source | Corded Electric |
Voltage | 120240 Volts |
Wattage | 80 watts |
Speakers Maximum Output Power | 82 Watts |
Item Weight | 4.6 Kilograms |
Number Of Items | 1 |
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JBL LSR305 5" 2-Way Powered Studio Monitor
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Product Description
Bi-amplified Studio Monitor with Magnetically-Shielded 5” Low Frequency Transducer and 1” Soft-Dome High Frequency Transducer and Image Control Wave Guide. Class-D 41 Watt RMS Amplifier for LF, and 41 Watt RMS Amplifier for HF. Balanced XLR and ¼” TRS Inputs with Detented Level Control, HF and LF Trim Controls. LSR305 Includes US Power Cord.
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This Item JBL Professional LSR305 First-Generation 5" 2-Way Powered Studio Monitor (LSR305) | Recommendations | dummy | dummy | dummy | dummy | |
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Price | Currently unavailable. | -22% $139.00$139.00 List: $179.00 | $99.99$99.99 | -18% $122.22$122.22 List: $149.00 | $199.00$199.00 | $129.99$129.99 |
Delivery | — | Get it Apr 3 - 5 | Get it as soon as Wednesday, Apr 3 | Get it Apr 3 - 5 | Get it Apr 3 - 5 | Get it as soon as Wednesday, Apr 3 |
Customer Ratings | ||||||
Sound quality | 4.9 | 4.5 | 4.5 | 4.6 | 4.9 | 4.4 |
Volume control | 4.6 | 4.7 | 4.5 | 4.8 | 4.8 | 4.3 |
Value for money | — | 4.2 | 4.3 | 4.6 | 5.0 | 4.4 |
Accuracy | 4.8 | — | — | 4.4 | 4.9 | 4.4 |
Sold By | — | Alto Music | Amazon.com | Alto Music | Alto Music | Edifier Online Store |
speaker size | 6.5 inches | 8 inches | 3.5 inches | 7 inches | 6.5 inches | 4 inches |
power source | Corded Electric | Corded Electric | Corded Electric | Corded Electric | Corded Electric | Corded Electric |
connectivity tech | XLR | XLR | 1/4" TRS, RCA, Auxiliary | XLR | Coaxial | Bluetooth, USB-A, Aux-in,Edifier Connect APP |
speaker type | Subwoofer | Monitor | Active Media Reference Monitors | Woofer | Monitor | Monitor, Bookshelf, Woofer, Tweeter |
mounting type | Floor Standing | Wall Mount | Desktop, Bookshelf | Wall Mount | Tabletop,Wall Mount | Shelf Mount |
weight | 4.6 kilograms | 12470 grams | 8.5 pounds | 8.4 kilograms | 8.51 kilograms | 4500 grams |
control method | remote | remote | — | remote | voice | remote |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the sound quality, quality and value of the speakers. For example, they mention that it produces clear, loud and perfect sound, it's professional quality at a consumer price and that it'll give a good performance. Customers are also impresseded with the size, high and range.
AI-generated from the text of customer reviews
Customers like the sound quality of the speakers. They say the sound they produce is clear, loud, and perfect. They also say the TV sounds like a movie theater, has lots of detail, and bass. The treble is also super clear, and the speaker is powerful.
"...It's a decent sounding tweeter, but if you want good sounding speakers, get JBL "regular" speakers, not these, or the perennial favorite..." Read more
"...Don't get me wrong, though, these speakers do not lack bass...." Read more
"...From its pristine sound quality to its ergonomic design, the LSR305 studio monitors are an ideal fit for anyone that wants to improve their..." Read more
"...The crystal clarity is amazing as is the lack of a 'sweet spot' - the sound seemingly comes from that side of the room - not from a small speaker...." Read more
Customers like the quality of the speakers. They say they are impressive, amazing, and incredible. They also say the finish of the enclosure is very professional. Customers also say that the speakers lack that tinny quality and sound more accurate. They mention that for the price, they get an amazing speaker and amplifier set.
"...(low frequency extension, dynamic punch, quickness, decay, dispersion, more detailed and revealing)..." Read more
"...My final assessment on these speakers are that they kick solid ass...." Read more
"...to its surprisingly flat frequency spectrum, the LSR305 offers professional quality at a consumer price; perfect for even the most frugal music..." Read more
"...comparing these near fields favorably to my long-gone Yamaha NS10s; punchy, open, easy to get a good mix without a lot of fuss...." Read more
Customers appreciate the value of the speakers. They say that it is the best bang for the buck speaker, the money was well spent, and the sound is accurate within the $300 range.
"...And so, recommended. And better than anything in the price range.Who are they for: the budget home recording studio..." Read more
"...integrated with the LSR305 at a local Guitar Center it's a great pairing for the money for music and for nearfield listening. Do I need it? No...." Read more
"...These are probably the most accurate within the $300 range. The KRK's seemed to be way over powered bass wise and drowned out the treble in the mix...." Read more
"...frequency spectrum, the LSR305 offers professional quality at a consumer price; perfect for even the most frugal music enthusiasts...." Read more
Customers like the performance of the speakers. They say they do pretty well, work well in that application, and are very powerful. Customers also mention that the two drivers work in tandem perfectly, giving a balanced full range sound. They are more than capable of keeping up with their devices.
"...Great for entry level producers just starting out with their first studio and even great for fresh professionals...." Read more
"...Because of this, these monitors are not only perfect for aspiring musicians, but are also great for events and parties...." Read more
"...The two drivers work in tandem perfectly, giving a balanced full range sound. The only concern now is, reliability...." Read more
"...Mids stand out the most on this speaker, and are great for symphonies or female voices.Overall, very glad I bought these...." Read more
Customers are satisfied with the accuracy of the speakers. They mention that they are excellent monitors, great reference monitors and superb near field monitors. They are also great for music and gaming, and are exceptionally accurate.
"...With the extremely accurate representation and the amazing stereo imaging, the JBL's were a no-brainer...." Read more
"...tweak eq or compression much at all, which means the overall mix accuracy is pretty spot on in the JBLs...." Read more
"...In any event, very happy with these fabulous monitors for music and gaming and have no noise, interference etc...." Read more
"...These are definitely great monitors, and the price makes them even more appealing...." Read more
Customers like the size of the speakers. For example, they mention it's good size for a small to mid size room, and larger than expected. That said, they say the bass is shockingly good considering the size and price point. Some say the speakers are much smaller and take up way less space than the Yamahas or any 8 in. They fit right in with their dark studio equipment and sound INCREDIBLE. Overall, most are happy with the size.
"...a little lusher, overall max volume a tad higher, box a tad smaller and more solid, better fit and finish)..." Read more
"...As a result, these monitors are able to fit more comfortably on a variety of shelves, stands, and entertainment centers without sacrificing resting..." Read more
"...These speakers are much small and take up way less space than the yamahas or any 8 in pair of speakers...." Read more
"...Cons: Cabinet size is rather large (though, probably adds bass response), Deep (>50hz) bass is missing, no grill/cloth to cover the speakers..." Read more
Customers like the highs of the speakers. They say the high is rich and crisp, and the mids and lows are excellent. They also say the sound is huge and can get very loud.
"......" Read more
"...The highs are nice and clear but still balanced. If anything it being only a 5in woofer it is bass light on some media...." Read more
"...For the price, these JBLs are fabulous monitors. They have nice highs and very lush lows...." Read more
"...The sound is huge and they can get very, very loud, while still maintaining great sound quality...." Read more
Customers are satisfied with the range of the speakers. They mention that it has an excellent frequency range and clarity. They appreciate the surprisingly flat frequency spectrum, which offers professional high, mid, and low range performance. They also appreciate the low frequency extension, dynamic punch, quickness, decay, dispersion, and sound reproduction. Overall, customers are happy with the speakers' performance and recommend them to others.
"...There's no protective grill. The speakers have a very wide range for such a small box...." Read more
"...(low frequency extension, dynamic punch, quickness, decay, dispersion, more detailed and..." Read more
"...It's super nuts.The frequency curve is super accurate. My mixes translate flawlessly from my bedroom, to the car, to the phone, and etc...." Read more
"...Having a balanced spectrum is arguably the most sought after feature for musicians shopping for new monitors because they will portray the music..." Read more
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So what are studio monitors? Basically, if you record or mix down your own music, you need a special pair of speakers to check your mix. You can't do that on headphones--your mix--the way the different tracks of music sound together--won't resolve spatially (there's no real space with headphones). So this special product was designed to address this issue, as well as provide a live playback in the studio, and so on.
Studio monitors do not have an exact definition, and there are different kinds. If you go into a music studio, the monitors are usually set up wrong, anyway. And so it goes. These tend towards what I would call "near field" which means, well, you sit near them. Not really near, but near. High frequencies lose energy over distance, so if you sit too far away they will sound dull.
How are they different from a pair of stereo speakers in a hifi system? Well, they are designed in most cases to be flat and neutral, and not impart an attractive EQ, color or bias to the sound. So as far as speakers go, they sound, well, flat and colorless. And that's good for checking your mixes, but not so good for easy listening. Ideally, they should be revealing and mostly unforgiving. You want the truth, just like the ad says. Also, since these are not shielded (more on this later) they are a dud for computer speakers. And, they are for a solo listener. You have to be in the focus point, they focus like a good camera lens--that makes them special, but also a specialty item.
So, so far, they from my description they sound like the box they came in. But in fact, they are great. Because when set up properly, you--the listener--and the speakers form the three points of a triangle. And after a few experiments (depending on your room acoustic), when they are set up right, the stereo image snaps into focus, and you can use them exactly they way they should be used--to check a mix. Any little problem in the mix is revealed, and you can quickly find the best mix (assuming you know how to mix). Note that in this triangle, the speakers angle towards the listener, at around 30 degrees. If you move a foot to the right or left, the image snaps out of focus.
So basically, if you are looking for studio monitors for mixing on a budget, look no further. These do the job and do it well. They do it better.
There are a few minor issues, again, remembering that these are a bargain. First is that the bass port fires towards the back wall. This is always problematic, depending on the room you are in. Having said that, in the focus position in the triangle the bass is reasonably well controlled. Also, the bass really does hit around say 42-48 Hz--it won't hit the lowest note of a large church organ, but double bass or electric bass, pretty good.
Next, there is a resonant frequency in the case. That is, if you tap on the case, it has a note. This is surprising for a JBL design, and I guess this in one area where they cut corners. You could open up the case and apply some damping material, but then you risk the warranty and you might make it worse. If I find an easy mod or see one I'll try to post it. Resonant nodes are a common problem in audio, and this is a present, but minor quibble.
Much has been written about the tweeter of this speaker and the diffracting pattern supposedly borrowed from more expensive designs. First of all, almost all speakers make this claim of "porting" expensive design components to lower models. In this case, the high frequencies, according to the hype, are less directional--more evenly dispersed. Well, this is pretty much rubbish, it is a cheap plastic design, and the high frequencies are very directional.
But the fact is, that's what you want in a studio monitor--you want to sit in the focus point and hear a very accurate representation of the mix. It's a decent sounding tweeter, but if you want good sounding speakers, get JBL "regular" speakers, not these, or the perennial favorite Bowers & Wilkins. These are studio monitors.
Next on the minor annoyances list is the overall shielding and hum rejection. There are two inputs, one for phono jacks and one for XLR cables. Now, you can hook up an RCA or banana plug combo--using adapters--from a stereo and drive these speakers (these are powered speakers, so they work with or without an amp or preamp).
But the fact is, they just don't work well. Drive them from a sound card, they just don't do the job, they pick up hum and the sound is a bit off. But drive them from, say, an RME interface, or anything with decent balanced XLRs (say a mid range Focusrite, or, my fave, Grace audio), flip the switch from "consumer" to "professional" input level (they are "consumer" by default, at least on my set) and be prepared to be surprised, they do pretty well. The noise goes away. They are also susceptible to hum from dimmers, or electromagnetic hum.
The tweeter is just a little bit less bright than flat--that is, there is almost a hint of ribbon in the sound. Not a bad thing, but don't set your mix too bright to compensate. Lastly, there is a very slight color to the sound, a hint of dark chocolate, sometimes edging ever so slightly towards murk. No biggie, but a slight coloration. As another reviewer perspicaciously noted, the coloration is similar to the Audio Technica ATHM50 headphones, so they make a complimentary pair. Compared to my Sennheiser HD600s, they are slightly darker.
JBL claims the speakers are "pre" broken in, mine settled in and sounded noticeably different after about twenty hours, so don't mix anything serious until they have moved some air, IMHO.
Again, these are some problems, but if set up right with the right cables, you are in business.
And so, recommended. And better than anything in the price range.
Who are they for: the budget home recording studio
Not for: not for home stereo, computer speakers, multiple listeners
Other notes: You will need XLR cables, and longer power cords than the ones supplied. There's no protective grill. The speakers have a very wide range for such a small box. Since there is no shielding, they are not too heavy--save the boxes for transport owing to the exposed cones. Do not forget to follow the setup pattern indicated in the obtuse instructions--if they aren't angled in (a very common setup mistake), the highs will be seriously skewed. There's a minimalist EQ switch on the back, I recommend you don't use this. Have fun, and happy mixing.
Currently running a Schiit Mjolnir 2 straight to to the LSR305 pair over balanced / XLR connection. All trim settings are currently set to flat. Speakers are currently sitting on Iso Acoustics stands, which make a huge improvement in sound. My listening position is about 3 feet / 1 meter from the speakers -- true nearfield.
Previous speakers were Dynaudio Audience 42, which were purchased about 10 years ago for about $850 a pair. There are a few things the Dynaudios are better at (treble is a little smoother, midrange a little lusher, overall max volume a tad higher, box a tad smaller and more solid, better fit and finish), but overall the JBL LSR305s are better at pretty much everything else (low frequency extension, dynamic punch, quickness, decay, dispersion, more detailed and revealing) and have replaced the EISA award-winning Audience 42 in my desktop system. The JBLs are much closer to the speed and dynamics of the Martin Logan electrostatics in my main living room rig.
Overall, the JBL LSR305 pair beats the Dynaudio Audience 42s convincingly on rock, disco, electronica, dance, and pop. No contest at all. For acoustic, classical, and jazz, it's more of stalemate, with the Dyns being darker, lusher, and smoother and the JBLs being more dynamic (both micro- and macro-) and more 'live' sounding; it's hard to say which I prefer for these genres. Tube-rolling the Mjolnir 2 may add a touch of lushness back.
Also, the JBLs are more revealing of lossy and dynamic compression artifacts in MP3s, whereas the Dynaudios were more forgiving. Some songs that were borderline on the Dyns have become noticeably inferior on the JBLs. Not more fatiguing...just noticeably more 'meh'.
As for the stands: adding the Iso Acoustics stands is amazing upgrade, especially for the price. Cabinet resonances go down, bass gets tighter, imaging improves immensely. But boundary reflections go down, so you have have to reposition / re-EQ to get tonality back where you want it. However, stands are essential to get the most if you're going to use it on a desktop.
Little nits that still need work:
1. The top-most octave has more air than I'm used to. I have to decide if I like this, or if I want to dial it back either via the trim controls or other EQ.
2. Imaging -- the center-fill and phantom center is really really good, the best I've heard on a desktop. However, I haven't got the soundstage beyond the boundaries of the left and right speakers yet. However, this could be a result of positioning / placement, how close I sit, etc. Will need to fiddle around a little more.
3. The box could be a bit deader. Just to be clear, I don't hear it audibly resonating, buzzing, or otherwise making noise. But I can tell, compared to the best mini monitors I've heard or owned, it's a bit more acoustically live which means the magical sensation of 'the boxes disappearing' isn't happening 100%. More like 70%. (For the record, the best box speaker disappearing act I've heard was the original NHT Super Zero, but those little guys only went down to about 80 Hz and the box was teeny tiny, but solid as a brick). We'll see if / how much the Iso Acoustics stands improve this.
4. The hiss: others have reported this, I didn't ever notice this or hear it until I read about it. And, yes, my copies have hiss, too when nothing is playing, but I can only hear it if I put my ears about 3" from the drivers. It's not otherwise noticeable.
5. Subwoofer or not? I've heard the matching 10" LSR310s subwoofer integrated with the LSR305 at a local Guitar Center it's a great pairing for the money for music and for nearfield listening. Do I need it? No. In my ~10' x 10' home office / hobby mixing studio, the 305s put out a musically satisfying amount of bass. Kick drums are wicked fast and dynamic, electric bass is tight and groovy. For mixing, it's great, as the 43 Hz extension covers the lowest note on a bass guitar. What's missing is the last 5% of visceral impact...feeling it in my body...that 5" drivers just can't do. But with bass, less is often more and there is a fine line where more bass just turns into more problems. I've told myself I'll live with these guys for at least a month, getting them more broken in, before I make a decision about adding a subwoofer.
I paid ~$250 for my pair. Sometimes you can get it even cheaper. This is an *astounding* value. The fact that it can go toe-to-toe in a near field setting with (albeit a bit vintage) Dynaudios that cost almost 4x the price is an impressive testament to JBLs engineering of these monitors. I'm tempted to get a 2nd pair and hook it up to an Airport Express for easy Airplay streaming in other rooms of my house.
If I ever had to move to an apartment, condo or other setting where I could no longer have my beloved Martin Logan electrostats, I could be pretty damn happy long term with a pair of JBL LSR305 and a great set of headphones.
Top reviews from other countries
Ricordo che mi erano state consigliate da un amico che le aveva provate e ne era rimasto davvero sorpreso.
Beh, che dire. Dopo tre anni sono ancora qui che mi assistono egregiamente, anche se non le utilizzo più per la produzione musicale (ho deciso di fare un upgrade qualche mese fa e comprare un paio di casse nuove).
Innanzi tutto va notato il rapporto qualità/prezzo che ai tempi era davvero sbalorditivo. Ma soprattutto la purezza del suono in uscita.
Dopo qualche mese decisi di aggiungere al anche un sub (L310S)
Se a solo andavano (e vanno ancora) molto bene, con il subwoofer L310S sono una meraviglia, soprattutto perché il miniwoofer da 5 pollici lavora come midrange e non innesca l'effetto bass reflex che tende un po' a confondere la purezza dei suoni a frequenze basse.
Pertanto, consiglio vivamente di spendere qualche centinaio di euro in più per acquistare casse più sub ed ottenere un sistema completo, perfetto non solo come monitor (suoni puliti per mixage), ma anche come hifi e home video.
Regolazioni flat, senza attenuazione e con frequenza di crossover del sub a 120 Hz.
Davvero un ottimo prodotto!
1. JBL LSR305
2. Yamaha HS5
3. KRK Rokit 5
I was looking for the best beginner studio monitor for music production. I've researched, read, and watched lots of reviews and comparison tests (both sound and performance tests) against the top two contenders which are naturally the Yamaha HS5 and the KRK Rokit 5, and the JBL LSR305 comes through every single time. It easily beats the KRK Rokit 5 while the Yamaha HS5 comes in a close second (debatable, since the Yamaha is more expensive and you need a subwoofer; read on to find out why).
Now, some reviews may give an edge to the Yamaha HS5 for being a Yamaha and for sounding very linear and "flat," (which is what you want in a studio monitor for accurate audio reproduction). This is certainly the case. So that's all good, right? It's as flat as it gets. However, it lacks considerable low-end. If you get the Yamaha, you would most definitely need a subwoofer to reproduce the lows. This means you'd need to shell out even more money for a subwoofer, which is counter-intuitive since you're in the market for an affordable entry-level studio monitor. Not the mention the Yamaha is the most expensive out of these three.
Conversely, the KRK Rokit 5 is inferior to the Yamaha and the JBL in every single way. The quality in its audio reproduction just isn't there. It's basically, the opposite of the Yamaha. Not only does it have too much low-end, but worse than that, it lacks mids and highs. This results in a muddled, bass-heavy reproduction. Pricing is on par with the JBL though, and you might even get it for cheaper, so it has a slight price advantage.
So you might think that the Yamaha HS5 is the best entry-level monitor because of its accuracy, but what if I told you the JBL LSR305 does NOT need a subwoofer and the mids and highs are as accurate as the Yamaha? This means you're also getting accurate bass. Ultimately, the JBL is really the best of both worlds because you get better bass than the Yamaha, the mids and highs are accurately represented (like the Yamaha and unlike the KRK), and it's cheaper than the Yamaha. On top of that, you wouldn't have paid extra cash for a subwoofer either. So you're pretty much getting more for less.
Based on this, I would recommend the JBL. To be fair, I would also recommend the Yamaha, but not as highly as the JBL because it's more expensive and you still need extra gear. On the flipside, if go with the JBL, you don't need anything else. I've had these JBLs myself for over a year now, and they always deliver. It's perfect for listening to music, especially in lossless quality, but most importantly, mixes always come through. I don't think I've made a better investment for my hobby. I honestly can't recommend this studio monitor enough. Get the JBL, you won't regret it!
Por la parte de la calidad está todo dicho y tenéis un montón de comparaciones a vuestra disposición, en lo que es potencia, si vivís en un piso ya os aseguro que no vais a poder ponerlos ni al 50% porque van sobrados en ese sentido y normalmente trabajarás con ellos a un 30%.
Son bastante bonitos y la construcción parece muy sólida, la instalación es sencilla, cable de alimentación y jack a la interfaz de audio/mesa de mezclas o lo que quieras usar.
Sin duda los recomiendo totalmente.
Reviewed in Spain on August 21, 2018
Por la parte de la calidad está todo dicho y tenéis un montón de comparaciones a vuestra disposición, en lo que es potencia, si vivís en un piso ya os aseguro que no vais a poder ponerlos ni al 50% porque van sobrados en ese sentido y normalmente trabajarás con ellos a un 30%.
Son bastante bonitos y la construcción parece muy sólida, la instalación es sencilla, cable de alimentación y jack a la interfaz de audio/mesa de mezclas o lo que quieras usar.
Sin duda los recomiendo totalmente.
Un son bluffant. Technologiquement, c'est un tout, mais à souligner: crossover actif (càd filtrage woofer et tweeter en amont de l'amplification) puis un ampli class D par voie (càd deux par enceinte = woofer + tweeter).
Seuls points d'attention:
- A volume sonore faible ou nul, on peut entendre en écoute rapprochée (moins de 1.5m) un léger bruit de sifflement (hiss noise). Ceci est intrinsèque au design de la plupart des enceintes amplifiées où l'ampli est au niveau maximal en continu, le volume global étant réglé par la source audio ou par un composant à l'entrée de l'enceinte (en amont de l'ampli). Ce bruit est très faible. On n'entend plus ce bruit dès qu'on monte très légèrement le volume. Enfin, ce bruit est résiduel et n'est pas lié à une mauvaise source ou un mauvais câblage: pour preuve, il suffit de court-circuiter l'entrée pour constater que ce bruit reste. Remarque: vous verrez sur certains forums des utilisateurs se plaignant d'un bruit significatif qui augmente avec le volume (et pas uniquement avec les JBL LSR305); ce type de problème est lié à un mauvais câblage ou une mauvaise source.
- L'interrupteur on/off est placé à l'arrière. Peu convivial, mais d'une certaine manière normal: ce sont des enceintes pro avec d'autres usages.
- Même commentaire concernant le bouton rotatif pour diminuer le volume à l'entrée de l'enceinte: il est situé à l'arrière et, de plus, un par enceinte.
- Pensez à vous renseigner sur le câblage adéquat! Les entrées sont de type "balanced". Pour raccorder un source audio avec sortie jack, pensez par exemple à un câble 3,5 mm Jack stéréo vers 2 x 6,3 mm Jack Mono.