ฝัง
- เผยแพร่เมื่อ 12 มิ.ย. 2020
- Teardown - Look inside JBL LSR308 8 inch powered professional studio monitors. How to disassembly & assembly this JBL LSR 308 and What is inside a speaker? They cost less then they sound. I hope someday compare the JBL LSR308 vs JBL 308P MkII 8-inch 2-way monitor. At this moment the JBL LSR308 are discontinued and they replaced JBL 308P MkII newer model. They seem very similar jbl lsr305 and JBL 305p speakers. I hope closest future we teardown jbl lsr305 or JBL 305p. Some alternative studio monitors are yamaha hs8, krk rokit 8 or adam t7v. Check also jbl lsr308 comparison sound test. Definitely these are one of best budget studio monitors for the $400-500 price point.
JBL LSR308 Studio monitor specifications:
- Frequency Range: 37Hz - 24khz
- Max Peak SPL: 112 dB SPL C-Weighted
- Max Peak Input: +23 dBu
- LF DRIVER SIZE: 203 mm (8")
- HF DRIVER SIZE: 25 mm (1")
- LF DRIVER POWER AMP: 56 W Class D
- HF DRIVER POWER AMP: 56 W Class D
- LF Trim Control: +2 dB, 0, -2 dB
- HF TRIM CONTROL: +2 dB, 0, -2 dB
- Input Types: 1 x XLR, 1 x TRS Balanced
- AC INPUT VOLTAGE: 100-240 VAC +/- 10% 50/60 Hz
- Dimensions (H x W x D): 419 mm x 254 mm x 308 mm
- Weight 8.6 kg
Main features:
- Image Control Waveguide
- JBL Transducers are legendary for their performance
- JBL’s Patented Slip Stream™ low frequency port design
- Big Power, Big Sound
- Professional Balanced Inputs
- Selectable Input Sensitivity
- LF Trim and HF Trim “TRIM” switches
- JBL Professional Reliability
- JBL LSR Design - Your Music Needs a Point of Reference
- Deep Pedigree
[-] Hазвание видео RU: Студийный монитор JBL LSR308 - Полочная акустическая система первый взгляд и Разобрал Колонки
[-] Video nosaukums LV: aktīvie studijas monitori JBL LSR308 - tumbu/skandu iekšu skats - izjaukšana un pirmais skats
------------------
(0) DIY guides: • Video
(0) Headphones dB/SPL sound tests: • Video
(0) Tests and some entertainments: • Video
(0) Unboxings: • CREATIVE Sound Blaster...
--------------------
My Production Equipment gear:
- Panasonic Lumix DMC-G7 + 14-42mm f/3.5-5.6 kit lens + 14 mm F/2.5 prime lens + SanDisk Extreme 32GB SD card
- Velbon Sherpa 200R photo tripod + Kingjoy VT-3510 Video Fluid Head
- Stereo sound recorder Zoom H1, Zoom H4n + Audio Technica AT2020 usb plus, Blue Yeti, Behringer Xm8500, Behringer B-1 XLR & DIY Binaural recording Dummy head
- 4x50w LED spotlights
- CN-160 Dimmable LED video lighting
- Cheap Konig aluminium tripod, I use it for Zoom H1, H4n recorder, binaural head, dB SPL meter or LED lights
- Sennheiser HD600 and AKG K321 headphones with Creative E-MU 0404 USB Audio interface (DAC/sound card/amp) + EMU USB dac
- PC: i5 3470, 8gb RAM, 90gb SSD + 1Tb HDD + LG 23" IPS monitor and wireless Logitech keyboard with mouse.
- Sony Vegas 13 video editing software
Song: " Kraya - Freedom Trail Studio " (Downloaded from the TH-cam Audio Library) .
DISCLAIMER: This video description and comment section contains affiliate links, which means that if you click on one of the product links and later buy the product, I’ll receive a small commission. This NEVER affects the price you pay, and it’s an easy way to support the channel and the work that I do. This helps support the channel and allows me to continue to make videos like this.
Thank you for the support! - วิทยาศาสตร์และเทคโนโลยี
Newer JBL 308P MKII active monitors on amazon:
- amazon com: amzn.to/2zOGZMR
- amazon co uk: amzn.to/2Mc2tGh
- amazon de: amzn.to/2TVwoXi
They look like they sound great!
Thanks this video helped me a lot! I need to open one of my lsr308 monitors because the front isn't fitting okay on the cabinet itself!!
Nice to see what's inside, thanks to you. Now I don't have to take apart mine.
Glad to help
😀😀😀
@@Techscrews Hey. How much dB SPL do they hit @1m, @10m?
Thanks for detailed disassembly. I wanted to look from inside to drill holes as i want to mount this on ceiling for dolby atmos in my studio.
Hoo thank you ...Iam waiting long time...
what is the IC use for amplifiers?
Hello! What model is the potentiometer in these speakers?
Sir very nice
I own that pair as well I must say I am quiet impressed with the quality..
I have to say, after so many teardown videos, Edifier speakers look so much more - higher component made speakers than these or Logitech ones or Creative ones etc.
Seems like everyone but Edifier really cheaps out on components and quality.
For less than half the price, I think the Edifier 2700/2730/2750 seem to have better components. And I think I'd take the Edifier 2800 any day over these, but well, they're not avail anymore and I got my R2750 recently, so far, am happy.
The Edifier seems to be OK. Let's face it - speakers for 250 USD each, you basically buy 80 USD worth of materials, and the rest is shipping, boxing, marketing, assembly, refunds, business, profit etc. It is amazing you can make such great sounds for much as modest money. But what do you want to pay for? Great sound and simplicity (JBL) or also (Edifier) Bluetooth, Tone controls, Sub Out, Remote, Digital inputs, Internal DAC, etc....The money has to come from somewhere. JBL spends the money on an accurate-sounding speaker with a linear sound profile. In the MK II version, JBL actually makes the front horn and baffle even more rigid. (People started adding glue inside the MK I). Anyway, just my 5 cents. I had the JBLs and also a pair of Edifiers.
Do you know who actually manufactures the amp board ? I see JR printed on components but can’t find anything on them
These look SOLID
cool
Can you please say the impedance of the speaker ? Nowhere mentioned in website
sorry, but I forget measure it
what was the impedance on the woofers? 8,4 or 2 ohm?
no idea
what do you see? are these alectronics good stuff in there?
How would you rate the quality for the price?
very well, for that price you can get in HiFi only amp, there you get speakers with amplifier. I hope upload sound tests vs focal, magnat and other speakers :)
@@Techscrews any parts that are upgradable? Looks easy to take apart...
Thank you. Great video. Guess those class D amps require very little heat sinking and circuitry.
the only problem, as for most monitors, is that at close distance you can hear hissing/buzzing sound
I own these and yes, you do hear the hiss within 1.5 feet, 3 feet away it's impossible to hear... Turn the volume to maybe 75% removes some noise.
Tannoy Gold 8 Studio Monitors
Что за покрытие на стенках? Колонок внутри
Шумоизолирующий поролон (если это еще актуально)
I have an broken tweeter on my LSR308. Where i can buy a new one???
Ask jbl, they give closest dealer address
@@Techscrews how?
jblpro.com/en-US/support
I have a broken volume knob on my Lsr 305 how do I figure out the name of the part.
Boost your recording levels or use voice mic
The problem with this category of speakers is the extremely high distortion they have everywhere, even in the mids and low mids, and even at low SPL. They are not very useful in setting dynamics, creating synthesizer sounds,, adding distortion effects, etc, but they are OK for setting overall levels in mixing, panning and stereo effects.
Thanks for detailed comment.
Interesting. I've been running LSR308's in my dedicated 2 channel system for a many years now. I love the way they sound. Where did you get the distortion specifications for these?
@@bassfan71 Manufacturers do not publish specificaions but some reviews show distortion graphs for the entire frequency range. A published specification of high maximum SPL is a good sign.
@@aristotle_4532 Will look into it! Thanks.
I don't really hear distortion unless it was recorded that way. These are monitors after all...They tell the truth. As good as 400$ will let you hear. They are pretty flat sounding when adjusted for the environment they are in. Being a soft dome tweeter does allow harmonic distortion in the lower octaves if the music is cranking and there are harmonic tones inducing the distortion I assume your speaking of. It's common in soft domes. These being crossed over way lower than traditional tweeters is what gives them that sound though.
I feel like having a front made out of plastic is not a great idea. Yamaha is fully wood/mdf
on internet can find some diy to improve this front panel performance.
why some tweeters have no magnet like this Jbl one has no magnet in its tweeter??
this is a 50 cent piezo speaker...
It's a neodymium magnet.
It's not a piezo tweeter.
Hi! From your experience, judging by the internals quality / sound, what is the best pair of speakers for a big tv? (3-4m away from the tv, not near field type). Thank you!
definitely floorstanding speakers :)
I got a wharfedale diamond series speaker and it has soft dome tweeter and has big magnet in it, it gives good voice and sound, but I was wanting more detailed treble, airy and I like that kind of sound, i think there should be sufficient treble which smooths the midrange. i will buy JBL new now. Thanks.. I feel like while listening to DJ songs treble gives that feel of energy on top of base, its very much soothing and wow feeling..
I am from India
JBL makes best speakers in the world imo.
I own JBL Synthesis 4367
Hope to upgrade to JBL K2 S9900 or DD67000 one day.
They don't make best speakers in the world, just very good. Saying best clearly shows your bias. Try out different brands. I'm sorry that you bought the synthesis 4367, which are overpriced, realy $15k for a 2-way system and nothing else really ? ? ? You aren't the first JBL evangelist I have come across and you won't probably be the last. All of you keep saying the same thing without real facts to back-up your argument.
@@Techscrews Plus, I'd be pissed to spend 15 G on "Tower Speakers" that needs to be put on some kind of stand. Those things look kind of short. Gotta admit tho, that blue baffle when you take the grill off looks really cool. I'm guilty too of JBL stuff giving me at least 5% more excitement when trying speakers. Though all the brands of speakers I've tried the past 5 decades have been tremendously exciting. (Maybe from years with JBL N38's?) Music with x5 BIC Venturi DV84's in pro logic II for the cheap and awesome win.
@@Techscrews bro u did him dirty 💀💀💀
They are fantastic, but yeah, I would buy different speakers for that price....
you forgot to disassembly the tweeter
Install 2 x Hypex plate Amps and see what they could do with Quality Amps - but it would cost 800 USD! Hypex FA122 FusionAmp Plate Amplifier
this would be one very crazy project lol, but we can do it if a sponsor comes from sky :)
OMG....!!! So simple, and so expensive... where is the studio monitor??)) these are the speakers from the music center from the 90s
First
you need a drill men
Plastic baffle ???!!!
on google can find some DIY where resolve plastic baffle issues.
Thank you.. looks pretty cheap. I'm Not going to buy them now.
Cheap cabinet, no bracing,. Cheap tweeter. No real baffle, just plastic. Too much about is cheap.
those monitors are better than you can expect at this price.
tiny tweeter lol
Shit quality electrolytic caps.
Cheap tweeter
Toy monitor
Why, its very good basic set.
neudium twetter? bullsit
at this price, there aren't many alternatives that offer as much
Барахло эти jbl,передняя стенка пластик,задняя стенка металл,это же не правильно! Особенно для мониторов за такую цену!