I enjoyed every minute I spent with the RTi A1. The speaker’s greatest strengths — the natural and detailed midrange, the excellent bass extension — are unheard of at this size and price, and its minor deviations from neutrality have been so carefully thought out and balanced that I wanted to mine my entire record collection, playing more and more different types of music.

A total of 32 reviewers on Amazon rated them an average of 4.9 out of 5 stars.

The RTi A1 speakers from Polk Audio are available from Amazon for about $255.

Another excellent speaker brand is Bower and Wilkins. If your bookshelf speaker budget is around the $500 range, you might want to check out the Bower and Wilkins multimedia speakers.

The post The Best Bookshelf Speakers Under $300: RTi A1 By Polk appeared first on Reactual.

The DeVialet Silver Phantom is the ultimate compact wireless hi-fi system, delivering incredible power with no sacrifice of sonic clarity even at the highest volumes.

The Details

The best to be found in a compact wireless hi-fit system in 2016 is the DeVialet Silver Phantom. DeVialet claims that the Phantom (with the Silver Phantom being the upgraded, even more powerful version) was designed over a period of 10 years, taking 40 engineers, 88 patents, and $30 million to bring to fruition.

The Silver Phantom is spherical (actually, oblong) in shape and white with silver dome drivers. The 26-pound music machine is lovely to the eye. The only control on the unit is a white “Reset” button that’s hard to find (to preserve aesthetic appeal). Everything else is controlled remotely via your Android or iOS device. The Phantom’s heat sink, blended seamlessly into its backside, reminds me of fins on some elegant fish.

The Silver Phantom supports many file formats including AMP3, aptX (which isn’t available on iPhone), AAC, AMP3, Apple Lossless, FLAC, and OGG Vorbis. The music machine streams them with all lossless quality kept perfectly intact. For those who prefer wired connections, a flap at the back of the unit lifts to show Ethernet and TOSLINK ports.

DeVialet engineers explain that the Silver Phantom’s structure accommodates the two proprietary “Heart Beat Implosion” aluminum bass drivers (woofers) placed across from each other underneath a pair of thin aluminum domes. The diaphragms of these woofers (which have a 26mm peak-to-peak stroke), just like those of the coaxial midrange and tweeter drivers ensconced at a 90-degree angle to them, are flush with a spherical superstructure. In terms of acoustical physics, their being so situated focuses sound waves toward the Phantom’s center (which is vacuum sealed so as not to fissure or crack due to sonic onslaught).

This concept (which DeVialet calls its  proprietary ACE or “Active Cospherical Engine” loudspeaker technology) is inspired by the work of famed Princeton, NJ acoustical engineer Dr. Harry Ferdinand Olsen of RCA Labs. In experiments he conducted in the 1930s, Olsen concluded beyond the shadow of a doubt that a spherical speaker cabinet is the most efficient, the best at maintaining the fullness of the signal’s original sound quality. The closer that acoustical engineers can come to creating a single point in space out of which music emanates, the closer to “pure lossless” the music is.

The sheer sonic power of the Silver Phantom is quite simply astounding. At maximum volume, it produces 3000 watts of power to generate a jaw-dropping 105dB. Furthermore, as you increase the volume the Phantom’s sound becomes even cleaner. (Any extraneous sounds like humming or clacking that you hear are coming from the surface that the unit’s sitting on or is close by to, or may be the result of a low-quality recording.) Strong bass and outstanding clarity are always there at any volume level, but once you turn it up enough to really let those woofers run wild the audio experience deepens, whether you’re listening to R&B or a symphony orchestra, or even solo classical guitar.

But even at extreme volume, the Phantom never distorts or gets out of phase. The sound is always complex but balanced, one might even say “silky”, with excellent separation between highs and lows.

The Phantom’s components and outer shell are protected from their own heat and energy (and from outside impacts such as drops) with braided sheets of Kevlar acoustic insulation, which at once cool the the circuit boards and keep the unit so strong as to be literally bulletproof. Durability is no issue.

If there’s a flaw with the Silver Phantom, it’s that DOESN’T yield stereo surround sound. You would need multiple Phantoms to achieve that (or a close approximation). DeVialet engineers have made it possible to chain together up to 24 of them. (Oh, and one more flaw: the visually obtrusive, bright-greenish-yellow power cord! Who thought that up, anyway?)

The post The Best Compact Wireless Hi-Fi Speaker System of 2016 appeared first on Reactual.

The Details

Designed by renowned audio tech engineer Andrew Jones, the Pioneer SP-EBS73-LR “bookshelf” speakers can be used as stereo front-liners or as surround sound generators. Two concentric, 1″ mid-tweeter arrays provide clarity beyond the peers of these speakers, but the 5.25″ woofers also give you expressive, richly detailed bass, which is not always the case when you’ve got a lot of power in the treble.

Placed strategically, the SP-EBS73-LR speakers provide an outstanding surround sound experience because of their three-way design. The tweeters and woofers are paired up with 4″ midrange drivers. This unique driver configuration comprises Pioneer’s CST (Coherent Source Transducer) Concentric Driver. The build quality is regarded as superb, enhancing the resonance of the speakers. (They are 7.4″ wide by 15.7″ tall by 9.7″ deep, with gracefully curved sides.) To have surround sound, it’s recommended that the speakers be placed on stands about a foot out from the wall to allow their rear bass port, which gets down to 50Hz, to breathe and to allow the sounds to have more reflective space.

If you like music that’s heavier than classical/orchestral, jazz trio, New Age, etc., then you’ll want to invest in HD Tracks to listen to pop, heavy metal, blues, etc. These speakers are so high fidelity that they have a slight “treble forwardness” quality that reveals the tiniest flaw of lower quality tracks, especially with rock music and it sub-genres because there’s so much loudness.

The SP-EBS73-LR speakers can be used alone as your stereo output, or they can be part of a multichannel system as flankers for Pioneer’s Elite SP-EC73 center-channel speaker.

The SP-EBS73-LR speakers also come equipped with Dolby Atmos technology, which has been designed to accurately pinpoint the precise location of an audio object within a 3-D audio space and thus give you a far more realistic audio experience while you’re watching Atmos-coded Blu-ray movie or concert discs. The Atmos driver in these Pioneers is in the top and flush-mounted in a 20 degree, angled baffle. But, for now, Atmos coded movie discs are limited.

The best feature of the Pioneer SP-EBS73-LR speakers is simply the surround sound that you can buy without having to empty your bank account or go into debt. Retailing at US $700 to $750, it seems well nigh impossible to find a better surround sound system in this price range according to all available reviews.

Another Option

Another surround sound option, which costs several hundred dollars more than the SP-EBS73-LR speakers, is the Audio MASS System (5.1). Made up of a horizontally-aligned MASS Centre speaker, four MASS 10 satellites, and the MASS W200 active subwoofer, this system is praised by listeners for delivering power and sonic detail that’s exceedingly hard to match. The satellite speakers are so compact, standing on slender posts, that they can easily be placed so as to be nearly invisible, but they’re also designed with a futuristic or otherworldly beauty. The other two, larger components have the same eye-appealing quality. I should point out that you can find the 5.0 system for about the same price as the Pioneer speakers.

The post The Best Surround Sound Speakers appeared first on Reactual.

The speakers that produce the lowest bass are tactile transducers — they typically produce frequencies in the 0.5 – 20 Hz range. Tactile sound is not perceived through the ears — it perceived through the body. Most subwoofers are incapable of producing audio in this range.

A good tactile transducer to start with is $150, entry-level Clark Synthesis Silver Edition (TST239) — it provides ample sub-frequency bass for the home user.

The Details

Tactile sound is the sensation of sound transmitted directly to the human body by contact, rather than by sound waves through the ears (tympanic sensation).

More specifically, it is sound perceived through bone conduction, through muscles and deep tissue, and via skin sensation. We perceive the vibrations through our haptic senses which include both kinesthetic (muscle) and touch (cutaneous) senses. We feel both inaudible (infrasonic frequencies) and audible frequencies. Thus, tactile sound is not just brute rumbles and shock waves.

Tactile sound can be perceived in high fidelity up to the mid-range frequencies. According to NASA research we perceive 0 to 1 kHz through the sense of touch, 0 to 3 kHz through kinesthesia (the sense of the relative position of neighboring parts of the body), and 0.20 kHz to 20 kHz through our ears. Note there’s an overlap — we can hear the range of 0.20 kHz to 3 kHz both with our ears and through other parts of our body. Also, some hearing-impaired individual can hear sounds up to 5 kHz through their skin.

Tactile sound is a sensation that many seek out. People often buy expensive subwoofers to achieve deep bass effects. In this pursuit, subwoofers are often pushed past recommend levels, resulting in damaged equipment, muddied sound fields, and disturbed neighbors. Typically, subwoofers not produce tactile sound very well. They are designed to transmit low frequency sound through the air, and they don’t usually produce bass below 25 – 30Hz. Correctly installed and enclosed subwoofers can producer lower and louder deep bass, but they will not produce the same level of tactile vibrations.

So what kind of device produces tactile sound? Tactile transducers, or electro-mechanical devices that are built specifically to vibrate objects. They are very similar to a loudspeaker woofer driver minus the cone.

There are two basic flavors of transducer: inertial shakers and linear actuators. Let’s take a look at the differences between the two:

Inertial Shakers

Inertial Shakers operate by shaking a mass in an enclosed housing. The resulting vibrations are transferred to an attached object, like the wooden crossbeam of a couch, for example. Usually, shakers are bolted directed to an object.

Companies that make Inertial Shakers include: Clark Synthesis, Aura Sound, Earthquake Audio, Buttkicker and Sonic Immersion Technologies. These devices vary widely in price — some produce a simple shaking effect, some produce high-fidelity sounds that compliment to a stereo system or home theater (such as those offered by Clark Synthesis, my personal favorites).

A good tactile transducer to start with is $150, entry-level Clark Synthesis Silver Edition (TST239). It will produce solid definition to drum hits, or shake your fillings loose if you so desire. The transducer can be installed in less than an hour. It took me about 45 minutes to bolt it to the bottom of my couch, using the parts provided with the transducer. In my test installation, I removed the fabric from the button of a couch, and bolted the transducer to a crossbeam underneath. Once installed, the entire couch functions as a bass speaker.

But wait, we need to power the tactile transducer! Clark Synthesis sells a $350 customized tactile amplifier to do this, but you can actually use any amplifier that outputs at least 100 watts (check the Clark Synthesis documentation for more info). Well, Cambridge Audio makes good amplifiers, but their entry-level models start at $330. We can instead use an AudioSource amplifier. This is a 2-channel 100-watt (50 watts x 2) power amplifier, which can be purchased for under $100. This amplifier is well-reviewed —  111 reviewers on Amazon gave it an average of 4 out of 5 stars. You attach your amplifier to the tactile transducer using standard speaker cables. You then connect the amplifier to the Sub Out connector on your receiver.

Linear Actuators

Linear Actuators are transducers that push against a hard surface. They apply a force directly to an object, in contrast to Inertial Shakers which vibrate themselves, and then transmit that vibration into another object. Commercially available Linear Actuators usually replace the feet of a chair. They operate by pushing against the floor, and directly lifting and dropping a chair. They tend to be more expensive that Inertial Shakers, and they can be only installed under chairs — they can’t be installed under a floor or in a swimming pool like the shakers above.

Companies that offer Linear Actuator include: Crowson Technology and d-Box Technologies.

See also: The Tactile Transducer FAQ

The post The Speakers With The Deepest Bass: Tactile Transducers appeared first on Reactual.

• The Best Earphones Under $50: Dunu DN-12
• The Best Earphones Under $100: VSonic GR07
• The Bear Earphones Under $300: Etymotic Research ER4P-T

The Details

I’ve tested many earphones at Reactual over the last two years — probably about 30 earphones in total. Overall, I’ve been underwhelmed by most earphones on the market — even those that are recommended by magazines and blog (brands such as Beats, Audio-Technica, JVC, Sennheiser, MEElectronics, Sony, Symphonized and Westone).

My top issue with most earphones is a lack of sound quality — I’m very fond of rich sound with well represented bass. I also like my earphones to be comfortable and durable. I eventually found some earphones that were worthy of purchase —  here are my picks:

The Best Earphones Under $50: Dunu DN-12 Noise-Isolation Earphones

These $33 Dunu DN-12 earphones are very comfortable to wear and quite good looking too. In your hand, the DN-12’s body feels solid. More importantly, these are the best sounding earphones I’ve heard for under $50. The bass is very well represented, and the mid-range is warm and prominent. The treble is just right too — there is no sibilance at all — which makes for fatigue-free listening. Overall, the sound clarity is wonderful, especially for the price.

These are not sports headphones however — while walking or running these earphones tend to fall out your ear, due to their metal body.

The Dunu DN-12 is available on Amazon for about $33.

The Best Earphones Under $100: VSonic GR07

The VSonic GR07 earphones have excellent fidelity and a very balanced sound. If you read the Amazon reviews on this earphone — you’ll find almost everyone raves about the sound quality. Also, this is one of most comfortable earphones I’ve tested (my wife agrees — she loves these earphones).

If you are a bass enthusiast, check the Bass Edition of these earphones.

The VSonic GR07 is available on Amazon for about $99.

The Best Earphones Under $300: Etymotic Research ER4P-T

The Etymotic Research ER4P-T is significantly more expensive then the previous two earphones I’ve highlighted. But if you want audiophile quality from earphones, you’ll get it from these $264 Etymotic earphones. Basically, you are paying about $150 more than the VSonic GR07 for another level of sound clarity.

The people at Head-Fi reviews (who obsess about headphones) have this to say about the ER4P-T:

The ER4P-T is also very comfortable to wear.

The Etymotic Research ER4P-T is available on Amazon for about $264.

The post The Best Earphones For Sound Quality appeared first on Reactual.

Professional reviewers like the SP-BS22-LRs. Neil Gader, in his review for The Absolute Sound magazine, had this to say, “The BS22 has an honest tonal signature that doesn’t pander to the “let’s move ’em” sensibilities of big-box-store salesmen. It is remarkably free of sonic hype.” He continued, “However, the essence of the BS22’s performance is found in the quality of its midrange. Jones has fashioned a smooth, tonally ripe midband with just enough heft and weight behind vocal and instrumental images to provide reasonable dynamic and harmonic scale. The treble is surprisingly open, which lends overtones a fullness and dimensionality that are often lacking in blue-plate loudspeakers.” He concluded his review with, “The BS22 is simply one of the great buys out there, without reservation.”

A step up from these speakers would be the PSB Alpha PS1, which cost around $300.

The post The Best Bookshelf Speakers Under $200 appeared first on Reactual.