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HDTV and Home Theater Podcast

HDTV and Home Theater Podcast

HT Guys

The HT Guys, Ara Derderian and Braden Russell, are Engineers who formerly worked for the Advanced Digital Systems Group (ADSG) of Sony Pictures Entertainment. ADSG was the R&D unit of the sound department producing products for movie theaters and movie studios. Two of the products they worked on include the DCP-1000 and DADR-5000. The DCP is a digital cinema processor used in movie theaters around the world. The DADR-5000 is a disk-based audio dubber used on Hollywood sound stages. ADSG was awarded a Technical Academy Award by the Academy of Motion Picture Arts and Sciences in 2000 for the development of the DADR-5000. Ara holds three patents for his development work in Digital Cinema and Digital Audio Recording. Every week they put together a podcast about High Definition TV and Home Theater. Each episode brings news from the A/V world, helpful product reviews and insights and help in demystifying and simplifying HDTV and home theater. Our email address is hdtvpodcast@mac.com

1144 - Podcast #1146: Mini-LED vs OLEd and AXPONA 2024
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  • 1144 - Podcast #1146: Mini-LED vs OLEd and AXPONA 2024

    On this week’s show we compare Mini-LED vs OLED and we put a high end listening room based on products that were exhibited at this year’s AXPONA show. We also read your email and look at the week’s news.

    News:

    DirecTV and Dish Back Fubo in Its Spulu Antitrust Suit | Next TV Roku Upgrades Viewing Experience with New Features | TV Tech Hub: Smart TVs Now in Nearly 8 of 10 Homes | TV Tech Disney Plus Looking To Integrate Always-On Linear Channels

    Other:

    Credit cards abused again in second Roku hack affecting 576,000 - FlatpanelsHD NBCUniversal Launches Personalized, Hyperlocal Services via ATSC 3.0 | TV Tech Mini-LED vs OLED

    We are asked from time to time to recommend a particular TV or in some cases a technology. Right now, in our opinion, the best TV technology is OLED. But is it really the best overall? Let’s take a look at OLED vs mini-LED in six important criteria.

      Sharpness and Resolution: Both OLED and Mini-LED TVs typically offer 4K resolution, with some models supporting higher resolutions. Therefore, in terms of sharpness and resolution, it's a tie between OLED and Mini-LED. Black Levels: OLED TVs excel in producing true blacks by individually turning off pixels. Mini-LED displays have not completely achieved this level of per-pixel control. In this aspect, OLED emerges as the winner for its superior black levels. Brightness and Contrast: OLED TVs offer deep blacks for infinite contrast ratio, while Mini-LED TVs can achieve higher brightness levels. Mini-LED takes the lead in brightness, while OLED wins in terms of contrast ratio. Color Quality: OLED TVs typically exhibit excellent color quality, often surpassing 100% of the sRGB color gamut. Although Mini-LED TVs may not reach these levels, this is more due to other factors like color filters rather than the Mini-LED technology itself. The winner in color quality is OLED. Viewing Angles: OLED TVs generally have wider viewing angles compared to LCD TVs, including those using Mini-LED technology. While Mini-LED TVs can vary based on the type of display used, OLED usually outperforms them in terms of viewing angles. Size and Price: In terms of size, both OLED and Mini-LED TVs are available in various sizes to suit different preferences. However, traditionally, OLED TVs have been more expensive compared to Mini-LED TVs, which could be a consideration for some buyers. Price and size considerations may vary based on individual preferences and budgets.

    So which one wins? It's our opinion that OLED has the absolute best picture but mini-LED is very close and unless you are looking at them side by side you won’t notice. It really comes down to cost and since you can buy some really big mini-LED TVs for a quarter of the price, we give the nod to mini-LED.

    AXPONA 2024

    AXPONA 2024 wrapped up last week. What is AXPONA you might ask? From their website:  AXPONA is a three-day experience featuring multiple hotel floors packed with over 200 listening rooms. The Expo Hall featuring The Record Fair, The Ear Gear Experience, and seminars. Whether you’re a serious audiophile, a newcomer to high-end audio or simply a music lover, you’ll find everything you need to immerse yourself in your favorite sounds. 

    It's very similar to “The Show” that we have out here in CA every year. This year it will be June 7-9 in Costa Mesa so come out and let’s all go! While AXPONA exhibited products that most of us can buy, there are some that, quite frankly, are priced for people fly on their own jets. They probably don’t even listen to podcasts, so let’s make fun of them!! Kidding of course. Today, our very rich uncle who has $150,000 laying around has asked us to put a system together so he can listen to his extensive vinyl collection!

    Transrotor Tourbillon FMD

    The Tourbillon FMD is a premium turntable model with high-end features designed to deliver exceptional performance in the audio playback experience. 

    The Transrotor Tourbillon FMD stands out as a top-of-the-line turntable with innovative features and premium construction materials aimed at audiophiles seeking unparalleled sound quality and precision in vinyl playback. With its advanced FMD bearing technology, dual tone arm support, and included accessories, it offers a premium and comprehensive audio experience for discerning enthusiasts in the high-end turntable market.

    $60K with Cartridge

    Fern and Roby Amp No. 2

    Amp No. 2 is our second collaboration with Michael Bettinger who has been designing and building amplifiers for nearly 40 years. Integrated amps make building a great high fidelity audio system easy. Our goal in this project was to produce something that will turn your living room into the best listening room possible. Fewer components, cables, and cost, but delivering world class audio into your home. $8500 (Add $350 if you want Isolation Feet) 

    Acora SRB Reference Loudspeaker

    Acora Acoustics loudspeakers are constructed using hand crafted, specially treated granite enclosures. The rigidity of granite far exceeds that of traditional particle board or wood enclosures. One of the benefits of this is as the SRB’s drivers move to push air / create sound, the enclosure isn’t absorbing this energy and dulling or smearing the sound. Another benefit of the Acora enclosure is it does not need internal bracing to “stiffen” the enclosure. This means no additional reflections inside the enclosure that will vibrate the low frequency driver and smear the sound. The SRB also utilizes world class drivers and a hand built crossover network, however the real secret to the Acora Sound is that you only hear these, not the enclosure.

    Sensitivity 86.5 db 

    Frequency Response 43Hz - 35KHz 

    58 lbs each

    $37,000 pair

     

    Fri, 19 Apr 2024 - 44min
  • 1143 - Podcast #1145: Technics SU-GX70  Network Audio Amplifier Review

    On this week’s show we preview the upcoming WiFi 7 specification and we review the Technics SU-GX70 Network Audio Amplifier Review. We also read your emails and take a look at the week’s news.

    News:

    Roku just announced a free NBA channel ESPN’s Stand-Alone Streaming Service Will Be Available Through Disney+ Apple TV+ share grows in the US, but still lags behind its competitors LG TV owners should update their firmware, webOS vulnerability found in a few models

    Other:

    Ridiculous 150" AWOL Vision Theater Setup Roku patent invents a way to show ads over anything you plug into your TV | Ars Technica A Giga-Sunset For Gigaset IoT Devices | Hackaday WiFi 7 May be What We Have All Been Waiting For

    Why WiFi 7 is the future of wireless technology

    As of now, the finalized specifications for WiFi 7 (also known as 802.11be) have not been officially released, as the standard is still in development. However, based on industry discussions and proposals, some expected features of the proposed WiFi 7 specification include:

      Increased Speeds: WiFi 7 is anticipated to offer even higher data rates than its predecessors, potentially reaching multi-gigabit speeds  Enhanced Efficiency: Improved spectrum efficiency will allowi for better performance in crowded environments and increased capacity for simultaneous connections. Low Latency: WiFi 7 is likely to target reduced latency to support real-time applications such as online gaming, video streaming, and video conferencing with minimal delay. Advanced Security:  Multi-User MIMO: More advanced Multi-User Multiple Input Multiple Output (MU-MIMO) technology  Orthogonal Frequency Division Multiple Access (OFDMA): The use of OFDMA will enhance spectral efficiency and enable better resource allocation for various types of traffic. Improved Beamforming: Enhanced beamforming techniques will optimize signal transmission and reception, improving network coverage and reliability. Wider Spectrum Utilization: WiFi 7 may explore the use of new frequency bands or spectrum sharing techniques to accommodate more devices and applications and deliver better performance. IoT Optimization: Features tailored for Internet of Things (IoT) devices to support the increasing number of connected devices and diverse IoT applications. Power Efficiency Enhancements: Efforts to improve power efficiency to extend battery life in wireless devices and reduce energy consumption overall.

    It's important to note that these features are based on expectations and early proposals for WiFi 7. The final specifications may vary as the standard progresses through the development and approval process.

    Technics SU-GX70  Network Audio Amplifier Review

    Listening to music takes three elements, the music itself, the speakers, and the amplification. If one of these elements is not up to the task, your entire experience will be less than desired. Great speakers take high quality audio to even higher levels. The converse is also true, poor quality audio files will sound even worse. 

    There is a middle layer that we don’t talk about as much, and that’s the amplification. Back in the 70’s all we cared about were watts! The more, the better! As a teenager I did not appreciate that not all power is created equal. Smart amplifier design can make your music sound even better and that’s what the engineers at Technics have done with the SU-GX70 Network Audio Amplifier (MSRP $1999.95).

    The GX70 is a box that has something for everyone. First and foremost it's a digital amplifier that outputs a total of 80 Watts into 8 ohms and supports a ton of physical connections including: Line level x2, phono, HDMI ARC, optical x2, coaxial, USB Type A, USB Type B. Supporting HDMI ARC allows you to connect your own speakers as a soundbar alternative.  

    As far as wireless connection goes, you have Wi-fi, ethernet, Bluetooth, Google Chromecast and Apple AirPlay 2. DAB (Digital Audio Broadcast) and  FM. You can also get access to Spotify, Tidal, Qobuz through the app. 

    Hi Res is supported via the USB port with a DAC that can decode 32-bit/384kHz PCM and DSD512 files and it can handle MQA streams from Tidal. This is one versatile integrated amp!!

    Setup

    To connect the GX70 to the network you use the Apple Home (or Google Home) app. Which seemed odd to us since there is a remote control and display screen. But once you are connected to your network you can use the Technics Audio Center App to control the system. Actually, the only reason you would need the app is if you want to send MQA streams to the amp. All the radio stations that are available through the app are available on your phone or tablet via apps source apps like iHeart Radio. You can tweak the amp to dial it in for your speakers through a calibration on the amp. But it sounded really good right out of the box. 

    We’ll give it an 8 out of 10 for setup, knocking off two points because you have to use Apple/Google Home to get it connected to your network. The aforementioned remote is a better way to use and interact with the amp. You pretty much just need to connect your speakers and you are good to go.

    Sound

    To test the audio we turned to the HT Guys Listener Playlist (Playlist available on iTunes, Amazon, and Spotify)  and listened via Airplay2, Bluetooth, and USB. All the music was played in the highest fidelity available on the platform. Both Airplay and Bluetooth lowered quality to fit within the limits of the protocol. It should be noted that the GX70 does not support AptX. 

    We’ll discuss Airplay and Bluetooth together and sum it up by saying the quality was good. The only thing we’ll say is that these formats work well for convenience without sacrificing too much quality. When listening to music while doing something else, this is a nice feature. But for really listening to music we used the USB connection.

    Once connected to Listened to Steely Dan, Deacon Blues (24 bit 192kHz) across three different speakers and found that the GX70 helped capture nuances in the music that we had never heard before. The sound was clean and precise. In Stevie Ray Vaughan’s Tin Pan Alley his voice was so smooth and raspy but in a good way! It's like the amp gave it more power and weight!

    But can it make your walls rattle? You would think at 80W total that this was not a possibility and depending on your speakers it's not. If you have power hungry speakers they will push the amp to its limits. However, if you have efficient  speakers, it will fill the room with sound. More than we were expecting. For that we turned to UFO Strangers in the Night Live, which is an excellent album from the 1970’s, but the recording wasn’t the best. We’ll say this, the GX70 attached to Ascend Acoustics Sierra-1s, which are not extremely efficient speakers, got loud enough to where family members asked to turn down the music!

    Conclusion

    What we liked

    A plethora of input sources (both wired and wireless)  Build Quality is first rate LCD and Remote make it easy to use and setup Outstanding detailed sound quality

    Needs Improvement

    Two app setup Would like to see Aptx for high quality audio from mobile devices. Needs a tad more power

    The GX70 offers an elevated listening experience that brings music to life with clarity, depth, and immersive soundstaging making it a top choice for those who are serious about their music.

    Fri, 12 Apr 2024 - 42min
  • 1142 - Podcast #1144: Spring Break

    On this week’s show the HT Guys are on spring break but no worries we still have a brief show for you. Are Sports Fans willing to pay $50 a month to stream their favorite teams? We have a couple of emails and news stories. 

    News:

    YouTube TV estimated to have more subscribers than Comcast and Spectrum by 2026 Kaleidescape Introduces 96TB Terra Prime Movie Server

    Other:

    Smart devices are turning out to be a poor investment

    57% of Sports Fans Willing to Pay $50 Monthly For Live Streaming App

    More than 57% of TV sports fans said they would pay $50 monthly for a sports-only streaming app service in a February online survey of 2,000 respondents conducted by CasinoReviews.net, an advocate for online wagering. Full article here…

    Fri, 05 Apr 2024 - 20min
  • 1141 - Podcast #1143: SVS Officially Launches the Ultra evolution Line

    On this week’s show SVS officially launches their Ultra Evolution Speakers, Amazon Echo Dot with LED Display is the best home automation device, and RTINGS.com is not impressed with the Formovie UST Projector. We also read your emails and take a look at the week’s news.

    News:

    One-in-ten borrow streaming passwords Warner Sets Rollout Date for Max in Europe Mediacom Launches Xumo Stream Box TCL Adds NFL FAST Channel to TCLtv Plus Streaming Service

    Other:

    Apple TV+ Is the New HBO | WIRED SVS Launches Ultra Evolution Speakers

    We had Nick Brown and Smith Freeman on the live stream last Friday where we talked about the speakers and had a fun time. At that time we could not discuss all the details of their new Ultra Evolution speakers. Well this week SVS announced the availability and pricing.

    From the Press Release:

    At first glance, the most striking design feature is the acoustically centered time alignment cabinet architecture. A curve in the front baffle aligns the sound emanation point of the tweeter and each driver on a vertical plane ensuring sound from each driver arrives at a listener’s ear in the exact same instant. This maximizes phase coherence for a more convincing and immersive soundstage with pinpoint accuracy and imaging.

    For the tower models specifically, midrange drivers and woofers positioned above and below the tweeter allow for seamless crossover blending to create an idealized “point-source” where sound flows from a single point in front of the speaker to optimize dispersion characteristics.

    The diamond-coated aluminum dome tweeter is also completely new for SVS. Using a modern  technology called vapor deposition, a layer of diamond carbon is grown on the surface of the aluminum dome to improve rigidity and critical acoustic properties. This breakthrough in material science raises the frequency response well beyond the limits of human hearing resulting in effortless, airy, and unveiled highs with no measurable distortion. It also pushes low frequency extension of the tweeter deeper for more seamless blending with the midrange.

    Details and pricing on the new models are included below.  

    Ultra Evolution Pinnacle: 3-way floorstanding speaker - $4,999.98/pair Ultra Evolution Titan: 3-way floorstanding speaker - $3,999.98/pair Ultra Evolution Tower: 3-way floorstanding speaker - $2,999.98/pair   Ultra Evolution Bookshelf: 2-way bookshelf speaker - $1,199.98/pair Ultra Evolution Nano: Compact 2-way bookshelf speaker - $899.98/pair Ultra Evolution Center: 3-way center channel speaker - $799.99 Ultra Elevation: Versatile home theater speaker with multi-angle wall/ceiling mounting bracket - $899.98/pair  

    Ultra Evolution Nano and Ultra Evolution Tower models will ship later in Q2.

    Finish options will be limited at launch. All models will soon be available in Piano Gloss Black, Piano Gloss White, and Premium Black Oak Wood Veneer finishes.

    All SVS products are backed by a five-year unconditional warranty, 45-day in-home trial, fast and free shipping, expert lifetime support, SoundPoints loyalty program, and all the guarantees of the SVS Customer Bill of Rights.

    Amazon Echo Dot with Clock Best Smart Home Device Overall?

    I was reading an article on Tom’s Guide titled “The best smart home devices in 2024” and saw that they deemed the Amazon Echo Dot with Clock ($50) as the best smart home device overall. I wondered why? Once you dive in, you can see how they got there. From the article:

    The name says it all: this is an Echo Dot with a clever LED clock built in its face. However, this seemingly simple addition adds a ton of functionality to the Echo Dot, making an even better smart home companion. In fact, we wish more smart home companies took Amazon's cue and make minor — yet effective — enhancements to already excellent devices.

    I started searching online and found other reviewers saying the same thing. The Dot does everything you’d expect a device of this type to do but it's the LED that sets it apart from its competition. And if you read some of the 65,000 comments you’ll see a lot of others agree! The LED can display a clock, timers, weather, song titles, and more. 

    So do you think a $50 smart speaker with an LED display is worthy of the title “Best Smart Home Device”?

    Here is what some owners are saying:

    Replaced my 20 year old alarm clock I was looking for an "Atomic" alarm clock which automatically sets the current time and found this. I bought this Echo Dot for our bedroom when the old alarm clock finally quit working. This is bright, lights up when you speak and shows the time in the dark. Love it! A great clock for any room RTINGS what are you doing?

    Over at AVS forum a thread caught our eye titled “RTINGS what are you doing?”. The author of the thread was not happy with a review of the  Formovie UST Projector the site had posted. RTINGS gave the projector a 7.1 out of 10 for movies. Reading through the thread it was clear that owners of the Formovie were upset. One poster thought it was possible that the RTINGS methodology may be suspect. 

    Question for our listeners. If you own a product and are happy with it do you seek out reviews? If they differ from your opinions does it bother you?

    If you remember in 2023 Projector Central did a laser projector showdown where the Formovie UST Projector won best Best Ultra Short Throw Projector. So it may have been in the AVS forum posters mind that the Formovie was a really good projector. Projector Central did not say best projector but best ultra short throw projector. Most people agree that UST projectors are not as good as long throw projectors but they do have the ability to be viewed in rooms with plenty of ambient light.

    RTINGS strictly looks at the measurements it takes objectively. When they did, the Formovie UST projector did not fare well. If you look at the scores from the shootout you see that it didn’t do much  better than what RTINGS said it did. If RTINGS did a UST shootout the F ormovie may have been the best one. It's just not the best projector.

    Fri, 29 Mar 2024 - 32min
  • 1140 - Podcast #1142: Audiophile Myths

    On this week’s show we take a look at some audiophile myths and debunk them. We also read your emails and take a look at the week’s news.

    News:

    LG Debuts Wireless Dolby Soundbar For G4 OLED evo TVs Have You Signed Up for a Streamer to Watch a Specific Show? DirecTV Drops Local Stations From Lower-Priced Bundle CSA unveils smart home security standard ESPN Signs Six-Year, $7.8 Billion Extension for the Expanding College Football Playoff Tournament

    Other:

    TV Station Launches Multiple 4K Broadcasts OTA on ATSC 1.0 Audiophile Myths

    Why do some in our hobby spend so much money on their gear? And for this discussion we are not talking about reasonably priced quality products that can cost a few thousand dollars. We’re talking about really expensive stuff like speakers that cost $20,000 each, speaker wire that costs $100 a foot, or any other product that needlessly separates you from your money all in the name of squeezing out the last bit of performance.  On today’s show we will dispel a few Audiophile Myths and hopefully save you money and help you get more out of the equipment you own.

    Myth: Even though people cannot hear frequencies above 20 KHz, it is important that audio equipment be able to reproduce higher frequencies to maintain clarity.

    Fact: Producing sounds at a frequency beyond what humans can hear is not sonically useful. However, a good amplifier and speaker generally have a frequency response beyond the limits of hearing.  Conversely, the lack of an extended response can indicate that the amplifier designers cut some corners. Keep in mind you don’t have to pay a lot of money for this. A Fosi amp goes for $100 and produces frequencies from 20Hz to 20kHz. 

    Myth: Gold-plated connectors sound better than connectors made of standard materials (Copper, Nickel. Or Tin).

    Fact: Gold does not oxidize, and oxidized connectors can cause problems. With that said, gold on it's own will not make your audio better. As far as oxidation goes, good quality wire and connectors will take years to oxidize under normal circumstances. Don’t waste money on gold plated when copper will do the exact same thing!

    Myth: Speakers Need Time to Break In  

    Fact: I used to believe this based on my own listening. But there was no way for me to actually remember what my speakers sounded like from day one to compare them with day five after 30 hours of use. It wasn’t until I saw objective tests performed on speakers when they were new and again when they were used for 30 hours. The wave forms were sonically identical. Conclusive scientific results. End of story!  

    Now some bigger drivers like woofers and subwoofers use spiders as stiffening agents instead of thicker, more rigid materials in their production. These do lose stiffness in their suspension with use, but it usually happens within minutes — not hours or days. 

    Myth: All acoustic treatments will improve the sound.

    Fact: You can’t throw up acoustic treatments just anywhere and expect an improvement in sound. Acoustic treatments are made to address specific problems. With that said, if you have a room with bare walls and wood or tile floors, get soft materials on the walls and rugs on the floor. In this case dampening the echos will help. But to do a full treatment you need to be more exact, 

    Here is a list of articles from Audioholics that can help you treat your room. “Room Reflections and Human Adaptation for Small Room Acoustics,” “Early Reflections and Bass for Small Room Acoustics,” and “Early Reflections in Home Theater Rooms: Beneficial or Detrimental?” 

    Myth: Speakers need to be isolated to get the most out of them. 

    Fact: Well designed loudspeakers don't transmit much mechanical energy through their enclosures. Loudspeakers are transmitting most of their energy into the air which then exerts force on objects in the room. You are likely getting more vibrations from pressure waves hitting other objects in the room as opposed to the cabinet vibrating.  

    In my room I have played some of my speakers at very loud volumes. I then touched the drivers on the speakers that were adjacent and there was some movement. I’m not sure that they did anything to distort the sound in the room, but they were vibrating more than the cabinets of the speaker that I was using. There may be some aesthetic reasons you may want to isolate your speakers including pads to protect your floor.

    Myth: All your speaker wire should be the same length.

    Fact: Speed of electricity is 186,000 miles a second. That means that a 5 meter and 10 meter cable have statistically no difference as to when the signal gets to the drivers. But using similar length speaker wire will increase the resale value of your speakers should you choose to sell them!

    Myth: You need to break in your speaker wire.

    Fact: Yes!! Do not drive them past 10 for the first 12,000 miles. After that if your amp goes to 11, have at it!! 

    Seriously, when it comes to speaker wire buy high quality wire. Just don’t pay exorbitant prices. Solid copper 14 Gauge speaker wire should not cost you more than  $25 for fifty feet. If you are doing short runs (less than ten feet) you can use higher gauge wire and save some copper both figuratively and literally!! Well provided you are paying in coins anyway.

    Fri, 22 Mar 2024 - 27min
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