The power supply gives ~34W of power, so it must either drain the battery only a third slower when plugged into ac power and playing at full volume or only achieve 100W of output power when the stars align just right.
Also, my math may be wrong, but it looks like 10 hours of playtime at 100W output power on a 18.5v (5S) battery pack would require 54000mAh of capacity. This is not accounting for inefficiency. My biggest power tool pack, which operates at the same voltage, is 9000mAh, and it’s huge and heavy.
Granted, no music short of cranking the knob up on a Jethro Tull extended flute solo on repeat is going to keep the system pushing a pure sine wave at peak power. But this peak number has got to be significantly overstated. If RMS power is 20W at full volume, a 100W peak power at some high level of distortion (10%?) could be quoted. Then if the 10 hours runtime spec is at half volume then the battery pack would be a believable 6000mAh pack and those numbers are achievable. And I believe in practice the battery is smaller than that, as are the power figures involved.
I’m not really sure what made me think so much about this speaker’s 100W power claim. Perhaps I need to evaluate my life choices. The short answer is probably “it’s consumer audio gear; of course the output power is fictitious.”
@djslack I got one of these from MorningSave recently for $80. Before deciding to pull the trigger, somewhere in my travels looking for reviews I found one review which said 10 hours runtime at 70% volume.
Have only used it twice, and I haven’t bothered with downloading the app for it, but for what it is, I’m impressed. It’s large, it’s heavy, and its range is better for outdoors than the LG Music Flow P5 that I picked up on one of the Meh sites for under $20.
I like it enough to consider getting one or two more to give as Christmas gifts.
@LaVikinga so I hear it’s great from everyone that owns one. I’m glad. As I look this morning at what I wrote last night, it seems like I was dogging this really hard. I’m not, really, I just had a hard time with that 100W number.
If meh hadn’t already sold me over $90 worth of other Bluetooth speakers that sit around various places in my house and get used once in a while I might be able to convince myself to bite on this. I still might, though, we’ll see.
@djslack Watts are a function of voltage and current. The input voltage is much different than the output voltage. So, when there is a discrepancy like the one you have noticed (very common with audio gear) it’s actually compensated with a corresponding decrease in current - but you’ll never see that in the specs.
@mprachar right, the thing can convert its supplied voltage to whatever voltage it wants to operate, but it can’t manufacture its own angry pixies inside so it’s takes at least that amount of power on the input side to generate the stated power on the output side, plus whatever goes to heat. 100W at nominal 18.5v (taken from lithium batteries being nominal 3.7v/cell and inferring the total pack voltage from the AC adapter’s rating) means 5.4ish amps supplied by the battery. Sustaining that for 10 hours requires a massive battery pack. I know it’s a peak number and the runtime is not 10 hours at 100W, but the thing is just not sized for that level of output.
[In an active speaker system with multiple amplifiers] peak power handling is greater if the signal has simultaneous peaks in two different frequency bands. A single amplifier has to handle the peak power when both signal voltages are at their crest; as power is proportional to the square of voltage, the peak power when both signals are at the same peak voltage is proportional to the square of the sum of the voltages. If separate amplifiers are used, each must handle the square of the peak voltage in its own band. For example, if bass and midrange each has a signal corresponding to 10 W of output, a single amplifier capable of handling a 40 W peak would be needed, but a bass and a treble amplifier each capable of handling 10 W would be sufficient.
This makes the math work better.
Also from that page,
An amplifier can be designed with an audio output circuitry capable of generating a certain power level, but with a power supply unable to supply sufficient power for more than a very short time, and with heat sinking that will overheat dangerously if full output power is maintained for long. This makes good technical and commercial sense, as the amplifier can handle music with a relatively low mean power, but with brief peaks; a high ‘music power’ output can be advertised (and delivered), and money saved on the power supply and heat sink.
So it’s marketing, and not supposed to work the way I’m trying to make it work. Carry on.
@djslack OK, your write-up represents way more time than I was willing to put into a Meh product comment
Mainly, I missed that you were side-eying the battery capacity vs. output power and run-time. I initially thought you were just an uninformed consumer who couldn’t grok how you could put OUT 100W while consuming only 34W.
Anyway, I don’t think I’ve got anything useful to contribute beyond that - have a great day!
I know we keep seeing these, but I bought one last time (this model, not the mini), and I must say, it is PHENOMENAL. The Libratone app could use a little work, but the speaker itself sounds FANTASTIC. Best portable speaker I’ver ever heard, by a longshot. I’m seriously considering buying a second. Just sayin’.
@tweezak I’m sure Martin Logan’s are amazing, if you have the money to spend on them (Plus they’re beautiful). But this is Meh, so I assume most people are looking for a deal lol.
Also, very easy to carry around.
C’mon, can’t you hear the speaker, just begging to be purchased…?
These are great - I bought a pair of the Zipp 2 when they were on sale a couple months ago - liked them so much I bought two minis to go with them. Side Deal and Morningsave always seem to have them for an extra 5 or 10 $.
Aside from having great sound, on WiFi you can sync any of the four types together so you can scatter them throughout the house or outside without any delay issues and put them wherever you want. Great for all the parties we don’t have anymore.
I like having all the connectivity options, so I can grab one and use it for the little TV in the kitchen or take it outside or to the barn where I’m working/hiding and connect it to whatever. Battery life is really good, they’ll run most of the day and you can just plug them in otherwise. The App is not very good, but once you figure it out it’s functional, and aside from an initial setup, not even needed. I haven’t figured out how to configure them as a stereo pair, yet.
@fullmentljacket I have both this Zipp and Zipp2. They sound nearly the same. Zipp has 2 tweeters & one 4" woof, Zipp2 has 1 tweet and one 4". Biggest differences are Zipp2 has Alexa built in and an automatic room EQ circuit which does make it sound a little bit better.
I think I understand what’s happening here… Someone at Meh said “Hell yeah - let’s buy this colossal stockpile of poorly-selling zippered speakers and sell them to our mehtizens. We’ll make a fortune!”
Except now, nobody is buying them (because why would they? This is Meh). The desperation to offload these is thick.
I say peddle these over at the alternate Mediocre storefronts, and bring back what made Meh so great in the first place… Something different every day, that nobody wants.
50 Hz to 20 kHz does not describe a speaker’s frequency range! It could be 50 Hz to 20 kHz +/- 20 dB (who knows?). Remember that each 3 dB is another doubling or halving the volume level. So -20 dB means that the bass is 1/100 the volume of what is should be. Also, why do today’s speakers never specify THD (total harmonic distortion) or provide a graph of frequency response? Spec readers beware! Grrrumph!
Also, remember that good bass could mean flat (or uniformly boosted) bass response, or it could mean a loud, 1-note thump! That’s two Grrrumphs!
@dddiam You are right that range needs to include +/-, but just so you know, the 3dB is doubling or halving of the power needed to produce the signal. The perceived volume difference is not that high. Double/half of how loud it sounds would be about a 10dB swing. This is why a 100w amp is only about twice as loud as a 10w amp.
@dddiam@jakepie49 I think we know Meh is not really geared to the audiophile crowd, so the specs are often just things cobbled together from what it says on the packaging.
That said, these have (to my ear, and it’s a decent musical ear) a good bass response. It’s not one those buzzy heavy emphasis cheaper units, you get a well balanced and well-toned bass as it should sound with the music. These are not meant to be window-rattlers.
We picked up two of the version 1’s.
For the price they are really good. App is ok, not the greatest but not horrible - small glitchy things that don’t impact the functionality.
Going to try to talk spouse into getting more, although I’ve seen reviews complaining about syncing more than 2 at a time. If it is an issues, can always use one in the home office…
@Willijs3 These aren’t your typical cheap crappy Meh bluetooth speakers. These are non-cheap non-crappy Meh Bluetooth + WiFi + Airplay speakers. So assuming each of those (bluetooth, wifi, airplay) are worth $35 each, these should be $105, No?
@Willijs3 Well, yes, of course. I was trying to make a silly point, as a counter your implication “all Meh speakers are cheap bad-sounding bluetooth speakers, not worth more than $35, so therefore this speaker is not worth more than $35.”
I can assure you if Meh lowered the price of these to $35, these would sell out in a few minutes.
The Alexa implementation on the Zipp 2 is mediocre. Not worth the extra money. I might get on of these and pair it with the Zipp2 I have. Or have a Dot drive each and use Alexa to set each up as one stereo channel?
…has anyone had any luck actually making the Libratone app work? I have tried on two different Android devices with no luck at all. It fails at the very end of the ‘pairing’ process. Any tips appreciated!
@Jbeltran17@sammydog01 Yes I did. I tried 3 seconds, then 10, then 30, then 1 minute. I put my left foot in, I put my left foot out… still nothing. No lights, no nothing… it’s just a heavy piece of junk… looks good as a paperweight!
I got two of these and I LOVE them. Nice sound, I can pair them via the app (the app is meh, but works) when needed; one in the bed room and one in the living room. Nice touch interface. I don’t use Airplay, so I cannot talk about that. But I’m super happy with this purchase, overall. Especially at this price point that is usually reserved for casemates.com.