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BEST SELLING PRODUCTS
- Amp your whole home with Great Sound
- Best multi-room streaming Amplifier Provider
HOLOWHAS Ultra-GC: 960W (60W x16) | 8 Streams 8 Zones Multi-Room Streaming Amplifier | HDMI ARC, SPDIF, Line in | BT Audio | USB Disk| Google Cast | Airplay2, Spotify & DLNA | Line & SPDIF Out | HoloHome App | BLE | GEQ
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HOLOWHAS Ultra-GC
$ 2,487 USD
$ 2,239 USD
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Overview
Based on 2 reviews
HOLOWHAS Ultra-GC: All the power of HOLOWHAS Ultra upgraded with Google Cast.
HOLOWHAS Ultra-GC is HOLOWHAS Ultra with Google Cast. So it is also an 8 Streaming 8-zone multi-room streaming amplifier, its power output capability is 16 x 60W, so the total is 960W, surpass all other similar products.It is an ideal solution for distributing HiFi audio to different rooms or zones within the whole house or building with pre-wired speakers. This allows you to play different audio sources in different areas or synchronize the playback for a consistent listening experience throughout.
Upgraded from the original Plus model, the Plus-GC introduces native Google Cast support, delivering smarter and more flexible multi-room streaming.
This amplifier has 8 different input source options to play music to 8 zones. You can use any combination of 8 input sources to play music to any combination of 8 zones. The user can select from 9 available streaming options, namely :
- Google Cast
- Airplay 2
- Spotify Connect
- DLNA
- USB
- RCA
- SPDIF
- Bluetooth
- HDMI ARC
- Google Cast
- Airplay 2
- Spotify Connect
- DLNA
- Bluetooth
- USB
- RCA
- SPDIF
- HDMI ARC
All of the above functions can be controlled using the HoloHome mobile application available.
Unlike many other devices that don’t support Google Cast or just support 1x Google Cast, our system offers true 8 x Google Cast functionality (also 8 x Airplay2, 8 x Spotify, etc). When you use 8x Google Cast, it is look like following:
OpenAudio is dedicated to delivering cutting-edge smart home solutions with a range of products that includes HOLOWHAS, HoloHome Streamer+,HoloHome Streamer, andStreamerAmp Pro. Additionally, the HOLOWHAS line has expanded to encompass HOLOWHAS, HOLOWHAS Ultra, HOLOWHAS+, HOLOWHAS Plus-GC andHOLOWHAS Max. Each product is tailored to meet different needs within the smart home ecosystem, ensuring there’s an OpenAudio solution perfect for every home.
The key upgrade of the HOLOWHAS Ultra-GC is the addition of Google Cast. With built-in Cast support, users can stream audio directly from thousands of compatible apps on Android, iOS, or Chrome browsers. It supports multi-room playback, group control, voice commands via Google Assistant, and cross-brand synchronization. Compared to the standard Plus model, Plus-GC offers broader compatibility and a more seamless wireless streaming experience.
OpenAudio is dedicated to delivering cutting-edge smart home solutions with a range of products that includes HOLOWHAS, HoloHome Streamer+, HoloHome Streamer, and StreamerAmp Pro. Additionally, the HOLO-WHAS line has expanded to encompass HOLO-WHAS, HOLO-WHAS Ultra, HOLO-WHAS Plus, HOLO-WHAS Max, HOLO-WHAS Ultra-GC and HOLO-WHAS Plus-GC, etc. Each product is tailored to meet different needs within the smart home ecosystem, ensuring there’s an OpenAudio solution perfect for every home.
Easy Network Setup: Allowing users to easily set up the HOLO-WHAS Ultra-GC network through HoloHome App. The setup is guided, making it simple and user-friendly.
Multi-Zone Support: Supports up to 8 independent audio zones simultaneously. Allows playing different audio content in different rooms or areas, suitable for homes, commercial spaces, or conference rooms.
Streaming Capabilities:Offers streaming playback capabilities. Access to various audio sources via a network connection (typically Wi-Fi or Ethernet), including Google Cast, Airplay2, DLNA, Spotify Connect, Bluetooth Audio, HDMI ARC, Line In and Spdif, etc.
Intuitive User Interface: Simple and intuitive HoloHome App interface. Quick access to necessary functions and operation options without extensive searching or learning.
Easy Zone Selection: Users can easily select the area they want to control.
Simple Audio Source Switching: Clear interface for intuitive selection and switching between different audio sources like Google Cast, Airplay2, Spotify, DLNA, Spotify Connect, Bluetooth, HDMI ARC, Line In and Spdif, etc.
Intuitive Volume Control: Easy adjustment of volume for each zone with a simple slider.
Good Compatibility: App runs smoothly on different mobile platforms and is compatible with various phone models and operating system versions.
Flexible Installation Options: Can be installed in a rack or mounted on a wall to suit different installation environments and needs.
High Audio Quality and Performance: Typically features excellent audio processing and amplification technology. Ensures high-quality audio output and a stable, clear audio experience in each zone.
You can contact us to get support when you face some issues, and you can also have chance to obtain free function updates to make it more powerful. You can get a voucher by contacting us via email at support@openaudiohome.com
If you want entry-level model, please consider HOLO-WHAS. If you want lower output, please consider HOLO-WHAS Ultra (60W/Channel) . If you want more power output, please consider HOLO-WHAS Plus (100W/Channel) & HOLO-WHAS Max (200W/Channel); if you want Google cast capability, please consider Ultra-GC or Plus-GC; if you want one zone solution, please consider Streamer+, Streamer, and StreamerAmp Pro. Please email us at support@openaudiohome.com if any question.
| Feature | Feature |
|---|---|
| Zones | 8 zones (16 channels) |
| Streaming Source | 8 Streaming |
| Outputs | 60 W per channel at 8 Ohm (stable down to 2 ohms), total 960W |
| Number of Inputs | 8 different devices can connect concurrently |
| Wireless Inputs | Google Cast, Airplay2, Spotify Connect, DLNA, Bluetooth |
| Wired Inputs | RCA, SPDIF, USB disk and HDMI ARC |
| THD+N | 0.005% |
| SNR | 112 dB |
| Inter-modulation distortion | 0.002% |
| Frequency Response Range | 20Hz-20kHz |
| Power Input | AC 100-240V, 6.8A, 50/60Hz |
| Dimensions | 17.05” x 8.46” x 4.11” |
| Subwoofer | Line out can be used as sub out |
HOLO-WHAS Series Hardware Features
| Product Model | RCA IN | HDMI ARC | Optical IN | RCA OUT | Opt OUT | Coax OUT | ETH | Power PC | Zones |
|---|---|---|---|---|---|---|---|---|---|
| HOLO-WHAS | Y(usb) | N | N | N | N | N | Y | 60W | 8 |
| HOLO-WHAS Ultra | Y | Y | Y | Y | Y | N | Y | 60W | 8 |
| HOLOWHAS Ultra-GC | Y | Y | Y | Y | Y | N | Y | 60W | 8 |
| HOLO-WHAS Plus | Y | Y | Y | Y | Y | N | Y | 100W | 8 |
| HOLOWHAS Plus-GC | Y | Y | Y | Y | Y | N | Y | 100W | 8 |
| HOLO-WHAS Max | Y | Y | Y | Y | Y | N | Y | 200W | 8 |
| HoloHome Streamer+ | Y | Y | Y | Sub Out | N | N | Y | 75W | 1 |
| HoloHome Streamer | Y | Y | Y | Y+Sub | Y | Y | Y | --- | 1 |
| StreamerAmp Pro | Y | N | N | Pre Out | N | N | N | 150W | 1 |
HOLO-WHAS Series Software Features
| Product Model | USB Disk | EQ | Bluetooth | Source | BLE Conf | Airplay | Spotify | DLNA | GoogleCast | 5.1/7.1 | ATMOS | Control4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HOLO-WHAS | N | Y | Y | 8 | Y | Y | Y | Y | N | N | N | Y |
| HOLO-WHAS Ultra | Y | Y | Y | 8 | Y | Y | Y | Y | N | N | N | Y |
| HOLOWHAS Ultra-GC | Y | Y | Y | 8 | Y | Y | Y | Y | Y | N | N | Y |
| HOLO-WHAS Plus | Y | Y | Y | 8 | Y | Y | Y | Y | N | N | N | Y |
| HOLOWHAS Plus-GC | Y | Y | Y | 8 | Y | Y | Y | Y | Y | N | N | Y |
| HOLO-WHAS Max | Y | Y | Y | 8 | Y | Y | Y | Y | N | N | N | Y |
| AVR-16200 | Y | Y | Y | 8 | Y | Y | Y | Y | N | Y | Y | Y |
| HoloHome Streamer+ | Y | Y | Y | 1 | Y | Y | Y | Y | N | N | N | Y |
| HoloHome Streamer | Y | Y | Y | 1 | Y | Y | Y | Y | N | N | N | Y |
| StreamerAmp Pro | N | Y | Y | 1 | Y | Y | Y | Y | N | N | N | Y |
Question 1: How can we use Airplay2 on Android device?
Answer 1: Simply install AirMusic on your Android device. Or just use Google Cast for Android devices.
Question 2: Can we use it with more than 8 zones with HOLOWHAS Ultra-GC?
Answer 2: Absolutely, you can expand beyond 8 zones, even playing the same music in unlimited different rooms with multiple HOLOWHAS Ultra-GC.
Question 3: Does HOLOWHAS Ultra-GC support USB disk playback?
Answer 3: Yes, it's a unique multi-room home sound system that supports USB disk playback, see also HOLO-WHAS Ultra, HOLO-WHAS Plus HOLO-WHAS Plus-GC or Max.
Question 4: What is advantage of HOLOWHAS Ultra-GC over JUKE-8?
Answer 4: 1) Supports 8 source streaming vs. 4 source streaming. 2) Delivers 60W per channel at 8ohm vs. 40W per channel at 8ohm 3) Features a 112db SNR vs. Juke-8’s 98db SNR 4) Achieves a -100db THD+N vs. Juke-8’s -92db THD+N 5) HOLOWHAS Ultra-GC supports HDMI ARC, Optical and Line In, Juke-8 doesn’t support. 6) HOLOWHAS Ultra-GC supports Optical Out and Line Out, Juke-8 doesn’t support. 7) HOLOWHAS Ultra-GC supports USD Disk playback vs. Juke-8 doesn’t support USB disk playback. 8) HOLOWHAS Ultra-GC supports Google Cast vs. Juke-8 doesn’t support Google Cast
Question 5: While airplaying or casting to a zone, does the phone's or device's native volume control raise and lower volume to that zone?
Answer 5: Yeah, the volume control can sync between phone and device, and related APP.
Question 6: Can you rename the zones? Not just in the products app, but the specific Airplay broadcast names assigned to each zone？
Answer 6: Yes, you can rename any zones as desired.
Question 7: Does it support audio streaming from online radio stations or podcasts?
Answer 7: Of course, you can use HOLOWHAS Ultra-GC for online radio stations or podcasts. For example, on a Windows PC or notebook, install Tuneblade and set your audio output to one of HOLOWHAS Ultra-GC's Airplay2 streaming inputs. For iPhone, set your Airplay2 output to one of HOLOWHAS Ultra-GC's Airplay2 streaming inputs from the Control Center. Android users can use AirMusic for similar settings.
Question 8: Does HOLOWHAS Ultra-GC support Bluetooth Audio?
Answers 8: Yes, HOLOWHAS Ultra-GC fully supports Bluetooth Audio.
Question 9: How many ohms per channel?
Answer 9: It can handle loads from 8ohm to 2ohm, with a power output of 60W per channel at 8ohm and 120W per channel at 4ohm.
Question 10: How to choose speakers？Can I connect subwoofer?
Answer 10: HOLOWHAS Ultra-GC is designed for constant resistance speakers, capable of driving 60W per channel at 8ohm and 120W per channel at 4ohm. To connect a subwoofer, take a stereo output, for example, zone 1, and connect the L channel to both L ceiling speakers and the L input of a power crossover, and the R channel to both R ceiling speakers and the R input of the power crossover. Then, connect the output of the power crossover to your subwoofer. You can find power crossovers on Amazon.
Question 11: Can it stream audio from multiple airplays simultaneously?
Answer 11: Yes, it can handle multiple Airplay2 streams simultaneously, upto 8 Airplay2 streams.
Question 12: What is the warranty / return policy on the 8-zone amp.
Answer 12: The product comes with a 2-year warranty and is returnable within 30 days.
Question 13: Can I connect to TV and other devises?
Answer 13: HOLOWHAS Ultra-GC can be connected to the output of a TV or computer using a HDMI ARC/Line in cable. Connect the HDMI ARC/Line in cable to HDMI ARC/Line in port on HOLOWHAS Ultra-GC and select HDMI ARC/Line In for one source in the HoloHome app.
Question 14: Is it possible to connect HOLOWHAS Ultra-GC to constant voltage speaker, and how?
Answer 14: Yes, it's possible. You can use a transformer (to convert from constant resistance to constant voltage) or bypass the transformer on constant voltage speakers and connect the speaker drivers directly.
Question 15: If every step is correct, the HoloHome app still cannot find the HOLOWHAS Ultra-GC device. How can I resolve this issue?
Answer 15: AP Isolation is a security feature designed to protect devices from attacks within the same network. When enabled, it isolates all connected clients on the same wireless network, enhancing security by preventing communication between them, as illustrated in the image below. This feature, however, can prevent the HoloHome app from configuring the HOLOWHAS Plus-GC on the network. To ensure proper control and communication, you should disable AP Isolation in your network settings.