I believe dBr is decibel relative, so, as you mentioned in the caption, it's the relative difference between existing ambient noise and its own. dBa is A-weighted, which is to technical to get into here, but there is also C-weighted and others for use in different situations. Using relative measurements for this type of equipment is all most people really need and is an easy practical way to determine how much noise this thing is going to add to your existing environment.
@CrosstalkSolutions : DBr means Decibels relative to reference levels; DBa is a weighted reference model for sound pressure at a given frequency (IE: 100 Dba @ 100hz for example). DB refers to the raw measured sound level with no bias. The Dba scale was based on a child's hearing and based on real tests to characterize how a person responds to noise. There's some math involved in the DBa data that i'm not going to dive into because that part makes my head hurt and don't understand it well enough, the majority of the internet is likely much better at logarithms and algebra than i could ever hope to be.
dB relative their background noise described in the footnote. Assuming measured at one metre since nearer gives results totally unusable due to root mean square and propagation errors.
Opening you own stuff will not void the warranty. According to the Magnuson-Moss Warranty Act it is illegal for companies to deny warranty claims just because you removed a "Warranty Void if Removed" sticker in fact I believe it's actually illegal to even put those stickers on products anymore.
@Crosstalk Solutions both my layer 2+ / 3 D-Link and Netgear switches have static routing and DHCP functions! I DO APOLOGIZE for using curse words such as D-Link and Netgear but, hardware wise they offer similar or superior features at lower prices in SMALL form factor envelopes with quiet-ish cooling for closet and possibly desk usage(3+ years ago). EDIT: also great unboxing
That happened to me with the AR APP so i fixed it by actually replacing the old switch with the new one, for some reason if you have that switch connected through rj45 using another switch the AR Code actually doesn't comes up unless you are using one of the SFP port. hope my answer helped
Great video as usual - best box throw EVER ;-) BTW wonder why they did away with the passive 24v - those with legacy AP won't be able to use these new Gen 2' - I purchased (by mistake) a Gen 2 US-16-PoE thinking it was a 16 port PoE and its not - its 8 ports of PoE and 8 non PoE - very misleading - Ok Ok dig deeper and the specs tell you - BUT no Passive :-(
Hey Chris! Not sure if the AR question was answered as there are a ton of comments however, I had the same issue when adding my 48 POE Pro switch after adding my UDM Pro. I had to remove the UDM Pro from the AR profile then add them both back in. Once they were both added AR picked them both up.
Maybe a = absolute & r = relative decibels??? It'd make sense given your observations. Love your videos Chris - informative & entertaining. I'm certainly not going to mess with you though, being able to throw a box that far with one seemingly effortless toss from your desk!
Didn't scroll down to see if anyone else answered. Here is what I THINK are the differences between DBa and DRr. DBa is the A weighting for DB measurement, meaning the meter is 'adjusting' for the human hearing range and giving you the loudest sounds at the most 'relevant' level you can hear (see en.wikipedia.org/wiki/Weighting_filter). DBr is DB relative to a reference, meaning it's how much louder the switch is relative to some reference level (see whatis.techtarget.com/definition/decibels-relative-to-reference-level-dBr as an example). If I'm looking at the chart correctly, they are citing the reference level as 27.5 DBa, so what you are seeing on the chart is how much louder than that reference the switch is at various loads. That said, sound is not uniformly loud across a space based on a ton of factors. And what they aren't telling you, at least in what you shared in the video, is the distance or location relative to the vent from which that measurement was taken (in the video you measure directly at the exit port which is clearly the 'loudest' location). Sounds increase or decreases as a square (or inverse square), so when you move away sound level goes down faster relative to distance than just a purely linear equation. Honestly, it's largely marketing mumbo-jumbo without that detail, as they could have put a wet sock over the detector to make it look 'quiet'. You won't know until you put it in your space and run it with you load how loud it will be or how noticeable it will be TO YOU. Humans are also imperfect audio receivers after all.
Where can you find the Unifi AR function? Is it in the Unifi network app or something separate? I´m using Android. Thanks for a great review and greetings from Finland :)
Didn’t see any other comments on the AR not showing the QR code on the one switch but showing it on the other. I tried the AR with the UDM Pro. When I setup the 24 Poe Pro it didn’t show up either for the AR. I had to delete my my configured rack in the UniFi Network app with only the UDM Pro and set it up again and the AR now works for both.
I have a site with DMPro, USW 48 Pro and the RPS, and I can confirm that they are super quite compared to old version, I never hear them only the AC in the MDF.
They put the sticker for warranty purposes BUT it is now illegal to void warranty on something you own if you take it apart so sticker useless now. DBa is sound intensity based on a scale that effects human hearing range, DBr is based on RF and AF frequency
The void if removed sticker means nothing in the US(not sure about other countries). The FTC has a law that makes the sticker pointless. A company cannot deny a claim based on the sticker being removed. It's illegal per the FTC
Hey Chris, was looking into getting a real home networking setup. The only issue I have is about the rumor of a potential UDM-PRo-Plus~ Machine on the horizon. Would you recommend the UDM-Pro and some mesh points or suggest to try and wait it out a bit more?
I have a USG, Cloud Key Gen2 plus, Unifi switch 8 port, and 3 AP's one long rang and the two others are the AP Lite. I was going to get this till I saw the price tag, I may have jumped the gun but I need 4 SFP Plus 10GB network conections to boot. The price is killing me so I pass and can't look past that! You'r review is awesome by far but I can not justify the price without 4 SFP plus or more
All devices should be racked to run AR on all Devices. First time it detects the switch or UDM-Pro that is on top and after that you will only get one QR to watch all of them one by one navigating with the arrows. Its cool feature to have documentation about all the links in a rack mount.
hello, thanks for your videos, thanks to you I'm discovering the ubiquiti products, I want to ask you a question, if I use 2 sfp + ports of the usw-48-pro model, some rj45 ports are automatically disabled?
Sorry for this 1 year old question? Why no "af" on these switches? Also, can you have a VLAN running with ports on 2 different switches? I am a newbie to this high end networking style. Has the Layer 3 switch features improved the speed of the network much?
Looking for a UBNT switch specifically for powering 2-10 of the LED light panels. Do I need to go Pro or just the normal POE 24 port? I could not get the LED panels to work properly with my HPE 2920/2930 switches, this is primarily so I can provide room lighting from my server room Battery/Generator during a power outage.
Problem is that switches will almost always be Multi-Gig, so 2.5/5/10G. If you already step up and get a 10G switch, it shouldn't be too much hassle to just buy some cheap/used 10G cards for your hardware as well
Hey Chris. Love your videos. Can you do a How to on setting up a site to site VLAN via IPv6? I have a small business and want to do seamless homeoffice. Thanks!
Hey man i have a question i need to upgrade my home network and I have the UniFi ecosystem but i have two AP the needs 48V and four AP that needs 24V so which POE switch you recommend please and thank you???
The fans are definitely loud at baseline compared with what they say - they are very audible even at baseline. They are NOT quiet switches for home use. Just got mine today and I’m returning it as it is nowhere NEAR as quiet as they claim. 40% fan with NO load and mine is over 50% with even 1 AP attached. And the fan speed on the front screen is just a temporary thing, as soon as you take your finger off the button it goes back to Auto, you CANNOT switch the fan speed permanently
@@CrosstalkSolutions Do you think it’s possible to change the default fans to Noctua like you did it with your US-24-250w? Which model (Noctua NF-A4x20 FLX or NF-A4x20 PWM) should be used for the USW-Pro-24-PoE? Is it worthwhile in terms of noise reduction? Regards from Germany
Very odd that the operating temp is 40C for max operating temp. Also that the fan speed is suppose to be 100% at that temperature, yet you already have it running at 47C in your setup which is over spec and your fan is at 40%. Something seems way off and their maximum operating temperature seems REALLY low. Its 104 ambiant here all the time, something don't add up...
Will you being doing a video on the new / upcoming doorbell. I've seen some stuff flying around online and on the forums but I come to you as you're the Ubiquiti God
@@CrosstalkSolutions Great, I look forward to it. I can see some product info from my early access account but they're all out of stock and has no fitting instructions / specs.
Great video. I just upgraded from a UDM to a UDM-PRO and UniFi Gen2 PRO PoE. I can't figure out how to use the SFP, it's currently blocked. I did buy a SFP cable from UI with the shipment. Help!
How did you get the AR to eventually work on the Pro Switch? I have the same issue on my 24 Port PoE Pro but saw that you eventually did fix it. Please share the secret.
The price is ok, but I hope, that a non-PoE version will come. 48 Port with 4x 10g is verry nice as well as a pro version of the 10g only switch - 12x 10g is to less - I already get old Dell switches to get more 10g ports in this vlan. (Port on unifi untagged and I don't manage the dell onece) Yes, I run them in a datacenter and already have been limited by the "only" 64 VLAN limit. Also hope that they will remove this, as well as that the non-PoE VR feature gets to the edge series also / unms gets unifi-ish port config soon. (I'm allways talking about 1g rj-45 & 10G SFP ports - I only use singlemode for 10g or it it's leaving the rack)
Because autosensing POE is inherently better and safer than passive POE. It would suck if you have a lot of passive POE equipment though - in which case Ubiquiti sells adapters like the INS-3AF-I-G that convert 802.3af to 24V passive. $20 on Amazon.
Everybody is reviewing the PoE version of this. Anybody know what the non PoE version is like for noise? I need something with SFP+ capability but it's going into a filming studio so the quieter the better.
Thank you for the videos, the box thrown out the door was great. I went all in, purchased the USW-PRO-48-POE.
up vote for the "un boxing"
Best unboxing I’ve seen yet 😂😂
done, now I just have to see the rest (i'm at 1:15 doing this comment)
I believe dBr is decibel relative, so, as you mentioned in the caption, it's the relative difference between existing ambient noise and its own. dBa is A-weighted, which is to technical to get into here, but there is also C-weighted and others for use in different situations. Using relative measurements for this type of equipment is all most people really need and is an easy practical way to determine how much noise this thing is going to add to your existing environment.
Loved the video can’t wait for the layer 3. Also that end scene was awesome 😂
@CrosstalkSolutions : DBr means Decibels relative to reference levels; DBa is a weighted reference model for sound pressure at a given frequency (IE: 100 Dba @ 100hz for example). DB refers to the raw measured sound level with no bias.
The Dba scale was based on a child's hearing and based on real tests to characterize how a person responds to noise.
There's some math involved in the DBa data that i'm not going to dive into because that part makes my head hurt and don't understand it well enough, the majority of the internet is likely much better at logarithms and algebra than i could ever hope to be.
The ending scene was perfect LOL!
dB relative their background noise described in the footnote. Assuming measured at one metre since nearer gives results totally unusable due to root mean square and propagation errors.
Opening you own stuff will not void the warranty. According to the Magnuson-Moss Warranty Act it is illegal for companies to deny warranty claims just because you removed a "Warranty Void if Removed" sticker in fact I believe it's actually illegal to even put those stickers on products anymore.
Warranty void if removed stickers do not apply in the us
Have you covered the AR before?
I don't remember seeing that in any of your other videos, maybe I just missed it.
I liked it!
Not yet!
@@CrosstalkSolutions That sure beats printing out a network diagram or using a labeler.
@Crosstalk Solutions both my layer 2+ / 3 D-Link and Netgear switches have static routing and DHCP functions! I DO APOLOGIZE for using curse words such as D-Link and Netgear but, hardware wise they offer similar or superior features at lower prices in SMALL form factor envelopes with quiet-ish cooling for closet and possibly desk usage(3+ years ago). EDIT: also great unboxing
I like the switch but I’ll wait for a 24 or 48 port 2.5GbE switch. No need to upgrade just because of the new features, as cool as they are.
I bought just the standard gen 2 24 port switch. Non pro non POE and really like it. Goes along nice with my UDM Pro.
TechOut i did the same and really like it.
That happened to me with the AR APP so i fixed it by actually replacing the old switch with the new one, for some reason if you have that switch connected through rj45 using another switch the AR Code actually doesn't comes up unless you are using one of the SFP port.
hope my answer helped
Great video as usual - best box throw EVER ;-)
BTW wonder why they did away with the passive 24v - those with legacy AP won't be able to use these new Gen 2' - I purchased (by mistake) a Gen 2 US-16-PoE thinking it was a 16 port PoE and its not - its 8 ports of PoE and 8 non PoE - very misleading - Ok Ok dig deeper and the specs tell you - BUT no Passive :-(
In the us warranty void if removed stickers are illegal.
Brandon Gracyalny in Greece is illegal too. Warranty sticker doesn’t mean anything!
You need to measure at 1m distance from the device, as that is a) the standard and b ) how things are measured, not stick the soundmeter in the fan...
I just came for the unboxing. Thank you.
The bit with the box at 1:00 got me lol
Hey Chris! Not sure if the AR question was answered as there are a ton of comments however, I had the same issue when adding my 48 POE Pro switch after adding my UDM Pro. I had to remove the UDM Pro from the AR profile then add them both back in. Once they were both added AR picked them both up.
Maybe a = absolute & r = relative decibels??? It'd make sense given your observations.
Love your videos Chris - informative & entertaining. I'm certainly not going to mess with you though, being able to throw a box that far with one seemingly effortless toss from your desk!
dB(A) refers to A-weighting, basically taking into consideration our sensitivity to noise at different frequencies.
Chris, your unpacking idea is pretty awesome 👍 🤣🤣
Great information. I'm getting into these devices so it's good that you covered these systems.
Didn't scroll down to see if anyone else answered. Here is what I THINK are the differences between DBa and DRr. DBa is the A weighting for DB measurement, meaning the meter is 'adjusting' for the human hearing range and giving you the loudest sounds at the most 'relevant' level you can hear (see en.wikipedia.org/wiki/Weighting_filter). DBr is DB relative to a reference, meaning it's how much louder the switch is relative to some reference level (see whatis.techtarget.com/definition/decibels-relative-to-reference-level-dBr as an example). If I'm looking at the chart correctly, they are citing the reference level as 27.5 DBa, so what you are seeing on the chart is how much louder than that reference the switch is at various loads.
That said, sound is not uniformly loud across a space based on a ton of factors. And what they aren't telling you, at least in what you shared in the video, is the distance or location relative to the vent from which that measurement was taken (in the video you measure directly at the exit port which is clearly the 'loudest' location). Sounds increase or decreases as a square (or inverse square), so when you move away sound level goes down faster relative to distance than just a purely linear equation.
Honestly, it's largely marketing mumbo-jumbo without that detail, as they could have put a wet sock over the detector to make it look 'quiet'. You won't know until you put it in your space and run it with you load how loud it will be or how noticeable it will be TO YOU. Humans are also imperfect audio receivers after all.
Love that box toss! Too good.
Where can you find the Unifi AR function? Is it in the Unifi network app or something separate? I´m using Android. Thanks for a great review and greetings from Finland :)
Only available for iOS at the moment.
@@CrosstalkSolutions Thanks, good to know so I can stop looking for it :)
Didn’t see any other comments on the AR not showing the QR code on the one switch but showing it on the other. I tried the AR with the UDM Pro. When I setup the 24 Poe Pro it didn’t show up either for the AR. I had to delete my my configured rack in the UniFi Network app with only the UDM Pro and set it up again and the AR now works for both.
I have a site with DMPro, USW 48 Pro and the RPS, and I can confirm that they are super quite compared to old version, I never hear them only the AC in the MDF.
I love this style, please do more !
They put the sticker for warranty purposes BUT it is now illegal to void warranty on something you own if you take it apart so sticker useless now.
DBa is sound intensity based on a scale that effects human hearing range, DBr is based on RF and AF frequency
The void if removed sticker means nothing in the US(not sure about other countries). The FTC has a law that makes the sticker pointless. A company cannot deny a claim based on the sticker being removed. It's illegal per the FTC
i like that it came in a brown box. i find that a lot of the best tech comes in plain brown boxes, low key style
Once out of wty, the noctua fan upgrade for these makes them much quieter and better to live with. Theres a few good install vids.
Chris hey great video!! Definitely liked the box in the back yard!! Chris hey how was someone new like myself get started with TCP/ip? Thank you 💯👍
Eli the it guys does some great foundation RUclips lessons
Hey Chris, was looking into getting a real home networking setup. The only issue I have is about the rumor of a potential UDM-PRo-Plus~ Machine on the horizon. Would you recommend the UDM-Pro and some mesh points or suggest to try and wait it out a bit more?
I have a USG, Cloud Key Gen2 plus, Unifi switch 8 port, and 3 AP's one long rang and the two others are the AP Lite. I was going to get this till I saw the price tag, I may have jumped the gun but I need 4 SFP Plus 10GB network conections to boot. The price is killing me so I pass and can't look past that! You'r review is awesome by far but I can not justify the price without 4 SFP plus or more
I loled hard at the box toss
All devices should be racked to run AR on all Devices. First time it detects the switch or UDM-Pro that is on top and after that you will only get one QR to watch all of them one by one navigating with the arrows. Its cool feature to have documentation about all the links in a rack mount.
One more thing... If you do not have a rack like me, just put each device like a rack one over the other and AR will run anyway.
For AR, you want to delete the current ar in you phone and add all your equipment again if you have new gen 2 equipments
I absolute love your reviews, unrelated question though: Where did you get that sweet digital frame? I totally flipped when I saw it switch @ 8:10
hello, thanks for your videos, thanks to you I'm discovering the ubiquiti products, I want to ask you a question, if I use 2 sfp + ports of the usw-48-pro model, some rj45 ports are automatically disabled?
Sorry for this 1 year old question? Why no "af" on these switches? Also, can you have a VLAN running with ports on 2 different switches? I am a newbie to this high end networking style. Has the Layer 3 switch features improved the speed of the network much?
What does the 48 port look like inside, you didn't show this switch... It's in the description though.
Are they better then the meraki switch? Not talking about price only quality and features?
Great overview! Any chance the video is coming for upgrading from USG 3P -> UDM Pro??????
Tried the AR. Kind of works. I have my gear mounted vertical and the AR likes horizontal same as the display.
The only time I skip ahead. On one of your videos, I caught the end of the box toss.... Then I had to start the video over. - Well done.
I'm fairly new to the POE game... are the 8 PoE++ ports backwards compatible with PoE+? For example, can you use all the 24 ports with PoE+ devices?
Looking for a UBNT switch specifically for powering 2-10 of the LED light panels. Do I need to go Pro or just the normal POE 24 port? I could not get the LED panels to work properly with my HPE 2920/2930 switches, this is primarily so I can provide room lighting from my server room Battery/Generator during a power outage.
new USW-Pro-24 or EdgeMax, I cant make up my mind... check is better?
Chris, Have you revisited your using Edge as your primary in your network with the new UDM/UDM-p series devices?
Chris: What is the UniFi Network monitoring/control software that you show on your desktop at the 7:01 mark ?
when will we actually see 2.5gbe switches from ubiquiti with like 8 ports total but with 4 poe ports?
Microtek has a 24 port non poe switch with 2 sfp+ cages for $150...and many other options with 10 gig for less than 300
Problem is that switches will almost always be Multi-Gig, so 2.5/5/10G. If you already step up and get a 10G switch, it shouldn't be too much hassle to just buy some cheap/used 10G cards for your hardware as well
I just returned one to Euro DK, good switch but the Unifi software makes me want to harm myself. Why can't Ubnt make this switch run EdgeOS?
Hey Chris. Love your videos. Can you do a How to on setting up a site to site VLAN via IPv6? I have a small business and want to do seamless homeoffice. Thanks!
00:59 Sir! I just spit my coffee all over my monitor. Ty
Hope to see a gen2 refresh of the 8 port
Hey man i have a question i need to upgrade my home network and I have the UniFi ecosystem but i have two AP the needs 48V and four AP that needs 24V so which POE switch you recommend please and thank you???
Chris, is there power button or way to power off without pulling the plug out?
That has to be in all your unboxings now.
Andrew Wells a
The old Unifi switches are Hot! Hot!! Hot!!!
Man i almost bought it... though it was fansless with no holes, but thanks for showing the insides.
love the packaging toss.. it will trigger so many folks
Any word on 10gbe or multigig switches? Or when they plan to bring the XG line into the 2nd gen lineup?
The fans are definitely loud at baseline compared with what they say - they are very audible even at baseline. They are NOT quiet switches for home use. Just got mine today and I’m returning it as it is nowhere NEAR as quiet as they claim. 40% fan with NO load and mine is over 50% with even 1 AP attached. And the fan speed on the front screen is just a temporary thing, as soon as you take your finger off the button it goes back to Auto, you CANNOT switch the fan speed permanently
I would not recommend these switches for home use unless you have some sort of network closet or out-of-the-way place for them.
@@CrosstalkSolutions Do you think it’s possible to change the default fans to Noctua like you did it with your US-24-250w? Which model (Noctua NF-A4x20 FLX or NF-A4x20 PWM) should be used for the USW-Pro-24-PoE? Is it worthwhile in terms of noise reduction? Regards from Germany
Very odd that the operating temp is 40C for max operating temp. Also that the fan speed is suppose to be 100% at that temperature, yet you already have it running at 47C in your setup which is over spec and your fan is at 40%. Something seems way off and their maximum operating temperature seems REALLY low. Its 104 ambiant here all the time, something don't add up...
I got one last month.. it's amazing!
Is there any thoughts on a 16 Port version? I would buy that right now.
Plenty of Gen-2 Pro switches here but haven’t been able to get the AR working 😐
I wonder if it would be silent if you were to run it off that ubiquity ups. I think you would bypass the onboard psu & fans.
I want unifi solutions for my next business. I’ve only have 20-30 devices needs to be wired up, some with POE. Other devices would be on Wifi.
I LOVE IT. AHAHAHAHHAHAAHAHAHHAHAH THE THROW IS PERFFFFFFECT
Will you being doing a video on the new / upcoming doorbell. I've seen some stuff flying around online and on the forums but I come to you as you're the Ubiquiti God
Definitely planning on it...
@@CrosstalkSolutions Great, I look forward to it. I can see some product info from my early access account but they're all out of stock and has no fitting instructions / specs.
Great video. I just upgraded from a UDM to a UDM-PRO and UniFi Gen2 PRO PoE. I can't figure out how to use the SFP, it's currently blocked. I did buy a SFP cable from UI with the shipment. Help!
Have you removed the SFP port's protective cover?
I'll take a couple of the edgeswitch variants.
Hey Chris how well does the flex switch work with that Poe++ now and your g4 camera??
Works a lot better - I showed it off in my USW-XG-6 video.
Crosstalk Solutions awesome thanks I’ll be sure to check that video out.
wait... UBNT has a 24port POE switch that is fanless?
Chris you nearly hit the 🐻 with the box
Please make a video on all the commands of unifi switch
What is Ubiquiti AR and how do you get it to come up on your phone?
That’s a good throw, maybe ending up in the recycling bin next time🌎🗑♻️
Love the box throw :) Sorry if i missed it in another vid, but what is the pic frame behind you?
How did you get the AR to eventually work on the Pro Switch? I have the same issue on my 24 Port PoE Pro but saw that you eventually did fix it. Please share the secret.
Delete your AR profile in the app and then re-create it. I discuss it in more detail in my AR video.
@@CrosstalkSolutions Got it! Thanks so much. I must have missed that in your AR video.
The price is ok, but I hope, that a non-PoE version will come. 48 Port with 4x 10g is verry nice as well as a pro version of the 10g only switch - 12x 10g is to less - I already get old Dell switches to get more 10g ports in this vlan. (Port on unifi untagged and I don't manage the dell onece) Yes, I run them in a datacenter and already have been limited by the "only" 64 VLAN limit. Also hope that they will remove this, as well as that the non-PoE VR feature gets to the edge series also / unms gets unifi-ish port config soon. (I'm allways talking about 1g rj-45 & 10G SFP ports - I only use singlemode for 10g or it it's leaving the rack)
There are non-PoE PRO switches in the UI.com store.
One Bg Beckdraw to the new Gen2 switches are ... There are NO 24V Passive ... which there are supported by the previous switches
Because autosensing POE is inherently better and safer than passive POE. It would suck if you have a lot of passive POE equipment though - in which case Ubiquiti sells adapters like the INS-3AF-I-G that convert 802.3af to 24V passive. $20 on Amazon.
No passive 24vPOE?
The throw was awesome!!!
Can we connect non ubiquity products to Unifi switches ?
Does it support any non-poe devices?
Is the body white or silver?
My Edgeswitch 24-250W POE is pretty horrible in regards to the noise...maybe they have learned to make 'em quieter.../crosses fingers
Everybody is reviewing the PoE version of this. Anybody know what the non PoE version is like for noise?
I need something with SFP+ capability but it's going into a filming studio so the quieter the better.
its the packaging toss for me!!!
Love your videos bud, the box toss was a nice touch! :D
can we normalize referring to this as what they are instead of what they are not? (ex. "non-pro" switch)
Bit underwhelming tbqh without any working L3 options.
You have my upvote, sir
db(A) is decibel audible, so the frequencies the human can hear, but i have no idear what db r is
has anyone posted layer 3 performance numbers on these fellas?!
Max operating temp 40C.... lets plug this bad boy in and check it out.... looks like it's running at 47C. Seems good.