The Details

3D printing has been around since the 1980’s, but the prohibitive price and size of most units kept them out of consumer hands. Over the past decade, 3D printer manufacturers have made a concentrated push to get the devices into consumer hands. Predictably, a flood of cheaply produced models that deliver low quality prints hit the market. These lower-end models aren’t capable of much more than churning out the odd novelty. Luckily, a few professional grade desktop 3D printers are now available at a fraction of the cost of larger industrial units. I’ve detailed the two best to come out in 2016.

Best Overall Desktop 3D Printer: Formlabs Form 2

Formlabs got its start at MIT back in 2011. Since then they’ve graduated to become one of the most innovative companies in the 3D industry. In 2014 they released the Form 1+ SLA Printer. It delivered professional-level printing at a price that small businesses and private consumers could actually afford. This year Formlabs improved on the success of their first effort with the release of the Form 2 3D Stereo Lithography printer.

Stereo lithography differs from most desktop 3D printers, which use ABS or PLA thermoplastics fed from a spool into a heated nozzle then set to cool. Stereo lithography employs a laser to harden resin distributed from a vat. It builds up one layer at a time and solidifies the resin on contact with the laser. 

The process is much slower than using the filament spools. It takes the Form 2 12 seconds per layer, which means you might have to wait 20 hours for your product to finish. But the longer time is well worth the wait, especially if you are producing detailed medical equipment. Once your project is done, it needs to be finished in alcohol. Formlabs included an isopropyl alcohol finishing kit with the printer, but be warned that the finishing process should take place in a well ventilated area.

Let’s get into the details. The Form 2 can print 5.7 x 5.7 x 6.9 inches. That’s larger than most desktop printers, but still smaller than industrial competitors. But the real draw is the 25 micron layer thickness, 4x more fine than the latest Makerbot replica. The detail is precise and stunning.

This time around the resin and print area are removable. Each resin tank goes through about 2L of printing before they have to be replaced. The process is simple, and you can switch between types of resin with ease. Each cartridge is quite pricey compared to ABS and PLA- between $150 and $300.

Another big upgrade is a level sensor that guarantees you are printing on a level surface. To level the printer, you have to manually adjust four leveling legs underneath. It also comes with a leveling tool to help in this process. The Form 2 has a touchscreen, and supports Wi-Fi and USB, setting it apart from most desktop 3D printers. Formlabs continues to release firmware and software upgrades to improve the process.

So is the extra money worth the price? Depends on your needs. Professional artists, architects, and doctors benefit the most from the added precision. If you are a hobbyist or new to 3D printing, you can probably stick to ABS for now.

Best Filament Printer: Lulzbot TAZ 6

Colorado-based AlephObjects delivers quality 3D printing with an opensource ethos in the TAZ 6, the latest gen model of  its flagship printer line. The TAZ 6 is a rugged fused filament fabrication 3D printer that looks and operates like something you’d see in an engineer’s warehouse. It doesn’t have the futuristic aesthetic of other consumer-oriented 3D printers. This is a printer that is built with quality parts and the clear intention to last. And it’s all the better for it.

The TAZ 6 printer focuses on reliability and quality over speed. This is a large unit with a 12 inch bed that prints objects up to 250 mm tall. The frame is a combination of aluminum with metal brackets and plastic parts parts printed at AlephObject’s massive print farm. The Z-axis is a giant spindle, while the X and Y axis use 2mm pitch belts. The TAZ 6 uses 3mm filament which comes out of hexagonal hot end on a 0.5mm nozzle. It has an LCD screen and SD card reader hooked up to the company’s RAMBo motherboard. The power supply and computer are cooled off by fans, and every wire is crimped and grounded. These extra touches show that AlephObjects care about the electronic components on this unit and have put in the effort to make them

One of the best features is that the TAZ 6 comes nearly ready to use right out of the box. Just fasten the extruder on with a single screw and then attach the surface and you are up and running within 15 minutes. Another plus is the auto-leveling feature which uses the washers at the four corners of the to establish a level surface before each and every print. It also has a reliable auto-cleaning feature that cleans the print head after every use.

The weakest part of the TAZ 6 is the glass bed, which has heated silicone underneath. The heat tends to dissipate away from the center, making it harder to pry the finished product off if its near the edges and achieve a smooth bottom. Other than that the prints are very high quality for a FFF 3D printer, and you can decide between “fast” “strong” and “high detail” profiles.

Finally, AlephObjects prides itself on its opensource policy. The company uses freely licensed designs, specifications, and documentation to make sure your software is never obsolete and you have access to free designs.

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The reputation that USB tables are junk doesn’t have anything to do with the fact that they are USB. It has everything to do with the cheap materials that they are made from. A turntable consists of many precision parts, including the arm, the platter, the plinth, the motor and the cartridge. Most USB turntables are all about style (or budget) over substance. So long as it looks good in a sepia-filtered Tumblr photo, does it really matter how the thing sounds? The problem isn’t just that they look and sound cheap (many play music at an abysmal 128Kbs). But some of these players, like the Crosleys you see at Urban Outfitters, use non-changeable ceramic cartridges that have a heavy tracking force that damages records. Why even spend the extra money?

In other words, most USB turntables are not made with the audiophile in mind.

Best USB Turntable For Digitizing Vinyl: Sony PSHX500

So what happens if you are sitting on boxes of vinyl that need to be converted to digital for posterity’s sake? That’s where the Sony PSHX500 Hi Res USB Turntable comes in. Its cartridge isn’t the best on the market and it isn’t packed with a ton of features, but this is the first device that converts to digital in high resolution.  The PSHX500 is also almost completely customizeable, a fact that sets it apart from most other USB turntables.

So how good are the recordings? Sony uses a patented circuit that the takes the record’s signal and converts it into a digital audio data stream using a Burr-Brown PCM4202 analog to digital converter. You can record files in everything from WAV to  double DSD (although good look finding a vinyl that will rip at 5.8MHz).  After you rip a track, the file appears on Sony software, which lets you choose the file format. It also lets you do some basic manipulation, like rearranging the tracks.

Now, you don’t always get a perfect recording. Some reviewers noted a faint humming in the background. But this is bar-none the best commercial option available for getting those rare options off wax and onto silicon. The process is also incredibly streamlined. You just plug the USB from the device into the computer, drag the needle, and hit play. Finally, you can digitize your records.

I like the minimalist matte black design for home use. It’s modern and goes well with polished dark wood cabinets and exposed brick and all the other staples of 2o10s interior decorating. The bare-bones approach means you are forgoing DJ staples like reverse function and pitch range. You get two speeds: 33 and 45 rpm(78 is missing, so don’t plan on converting those).

The Sony PSHX500 is outfitted with a moving magnet cartridge that is fit at the top of the arm. It is a fine cartridge, but audiophiles will want to switch in their preferred one. It also has a built-in phono preamplifier with RIAA curve, which is a nice feature for a turntable in this range. If you would rather play through your own phono EQ, just switch off the built-in one. It also has a removable lid and and integrated shell for solid stabilization.

All in all it is a durable piece of equipment, with a belt system that uses spindle-bearing construction. The platter is aluminum die cast and the mat is rubber, so that’s good. The spindle hinges are worrisome. I don’t recommend this unit for DJs who are going to be transporting their equipment around, but it will hold up in a stationary environment for a long time.

Best USB Turntable For DJs: Audio Technica AT-LP1240

Hauling a turntable around to parties and shows necessitates a device that can withstand wear and tear. The Audio Technica AT-LP1240 is a professional quality DJ turntable that is equipped with an internal stereo phono pre-amp and a high-torque motor. The thing is built to last and weighs like it.

If you are drawn to turntables for their retro aesthetic, then the blue LED lights and the slick pitcher and controls on the LP1240 won’t appeal to you. The turntable platter is made with die-cast aluminum, an S-shaped tone arm with counterweight, and anti-skate adjustment. These quality components are held together in a futuristic black and silver design. The LP1240 is a 3-speed fully manual and comes with plenty of ways to keep your speed accurate. It also has a a high quality brake. DJs also get a target light for dark clubs, two start/stop buttons, a reverse function, and a pitch change that goes to 50 percent over or under record speed.

You can plug right in to your laptop via USB and record using Audacity software. It doesn’t come with a cartridge so you will have to supply your own. You won’t find a better turntable in this pricerange, USB or otherwise.

The post Convert Vinyl Records To HiFi Digital Recordings appeared first on Reactual.

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.

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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.

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The Details

The Onkyo TX-NR545 is equipped with everything you want in a home stereo receiver in 2016. Each channel has an impressive 115 watts (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC), and Discrete Amps deliver additional current for higher quality audio reproduction. The built in 384kHz / 32bit hi-grade AKM DAC (Digital Audio Converter) assures that HD audio files play at their full potential. 

The biggest innovation comes with the HDMI 2.0 capability. HDMI 2.0 is a recent upgrade in audio/video technology designed, among other things, to support new 4k UltraHD quality video and sound. Receivers without HDMI 2.0 will not be able to transmit audio in the new standard, which is the format new Blu-ray players and TV producers are switching to. All six HDMI terminals on the TX-NR545 support the latest 4k UltraHD format. The TX-545 also has built-in Bluetooth, Wi-Fi, and can stream from Pandora and Spotify.

Wirecutter noted that the TX-NR545 is difficult to set up. The TX-NR545’s USB port is also on the back of the receiver, which is inconvenient.

The Onkyo TX-NR545 is available from Amazon for about $430.

Another Option

The Yamaha RX-V479 is another great stereo for its price. CNET gave it a 8.9/10 and praised its sound quality and connectivity features. It has 140 Watts output and UltraHD 4k connectivity. It is available for around $400.

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