Audio Pro, the specialist loudspeaker company from Sweden has announced the latest addition to its wireless multi-room audio range – Allroom Air One, a single stereo speaker that combines Apple Airplay and DNLA compatibility with modern leather-covered Scandinavian style.
Additionally, Audio Pro’s ‘Direct Link’ feature allows for users without a wireless network to stream direct from their device whilst additional sources can be connected via USB, analogue 3.5mm and optical digital TOSLINK inputs.
The speaker uses four drivers (2 x 1” soft dome tweeters and 2 x 4.5” bass units) driven by a 100W amplifier (4 x 25W Class D amplifiers) under the command of DSP (Digital Signal Processing). If additional bass reinforcement is required, users can attach a subwoofer such as the matching Living LVSUB. There’s also a free app that can be used to control the loudspeaker.
Allroom Air One is available now from in red, white or black and has a UK SRP of £499.00.
Technology Background – Different ways to produce the music
How to move the air that makes the sound? A bit of a quandary, that – there are several ways … a cone or dome made out of paper, plastic or metal with an attached magnet structure is most common these days. Vary an electrical signal to the magnet and this makes the whole thing move in time with the signal variations. Make the signal variations the music signal, and music is the resulting sound created by the air movement. The problem here is to make the cone or dome stiff enough that it precisely follows the input electrical signal. The cone/dome material flexes, it has to, nothing is perfectly rigid. Strengthen the material to make it stiffer and you will most likely increase the mass, which reduces the responsiveness of the system and so reduces the resolution of the sound. Material and magnet type can be improved, generally at a cost and with the usual law of diminishing returns. More »
How many times have you listened to a set of ‘speakers in a showroom to be surprised, or even disappointed when after purchasing, dragging them (carefully) home and impatiently setting them up only to be rewarded with something that bore no relationship with the sound that you heard at the dealers? Besides the usual caveats of allowing ‘speakers to break-in for 50 hours or more so that the moving parts can free up slightly, what else is there to be concerned with? More »
MBL 116F RADIALSTRAHLER SPEAKERS
This is a difficult review for me. I normally like to be able to put a hifi component into context, by comparing it with some of its sonic and/or financial peers, and so being able to point out their relative sonic merits, the pros and cons of the performance. More »
Day The First ….
I’d been ecstatically happy with the Leema Xavier speakers I bought on an “eBay whim” a few months previously, and this year’s hifi budget allocated by swmbo (aka Lindsey, my wife) was pretty much depleted anyway. So I was looking forward to the rest of the year settled down with the highly musical Xaviers. Life could be worse.
But a few days ago we came into a bit of an inheritance and swmbo allocated a top-up to the 2009 hifi budget (what a fine lass she is!). What’s a box-swapper to do? …. I hoofed it on to eBay pronto, that’s what, to see what was cookin’!
I saw these on auction with a couple of days to go …. did a bit of on-line research, and promptly fell in lust with them. A query to the seller resulted in the offer of personal delivery for £40 petrol money – you cannot be more reasonable than that.
So, here they are, arrived around noon yesterday.
Big cabinet – 51 inches high, 18 wide but only 11 deep. 12 inch woofer and the legendary EMIM ribbon midrange and EMIT high frequency units.
The Infinity RS 2.5 in Situ Chez Jerry
The bass unit crossover is set at 300Hz.
They weigh-in at 53Kg each.
I’ll forego detailed sonic description for now, as after a few hours listening and positional tweaking they simply seemed to be the best speakers I have ever heard. More realistic vocals I have not heard from a speaker. Maybe it’s just a “1st day pride of ownership” thing. We’ll see.
They sound just fine with the covers in place, so that’s the way they are in my room. More »