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Item #: ATRON448
MSRP: $780.00

Eight-Output HDMI Distribution Amplifier

Rondo™ 448


  • 1×8 HDMI® distribution amplifier
  • 4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling, plus support for HDR formats
  • HDCP 2.2 compliant
  • EDID management
  • Supports cascading up to eight units
  • Audio de-embedding


The Atlona Rondo™ 448 (AT-RON-448) is a 1×8 HDMI distribution amplifier for high dynamic range (HDR) formats. Part of the comprehensive family of Atlona 4K HDR integration products, it is HDCP 2.2 compliant and supports 4K/UHD video @ 60 Hz with 4:4:4 chroma sampling, as well as HDMI data rates up to 18 Gbps. The Rondo 448 is ideal for applications requiring the latest as well as emerging 4K/UHD and HDR sources and displays. It is compatible with all video resolutions, audio formats, and color space formats supported in the HDMI 2.0b specification, plus the ability to pass metadata for HDR content. This Rondo Series HDMI distribution amplifier includes EDID management features, front panel LED indicators for power and signal status, audio de-embedding to analog and coaxial S/PDIF audio outputs, and the capability to cascade several units without compromising performance.

The Rondo 448 is designed to deliver dependable, pristine-quality image presentations in commercial and residential applications. It includes Atlona’s award-winning 10 year limited product warranty and customer support services, so that integrators can specify, purchase, and install with confidence.


  • Residential installations – The Rondo 448 is designed for AV systems with the latest UHD and HDR sources such as Ultra HD Blu-ray players, plus compatible televisions and projectors.
  • TV showrooms – The Rondo 448 can be used for reliable content distribution to televisions, to properly demonstrate the quality and appeal of 4K and HDR programming.
  • Professional AV applications – Atlona 4K HDR products are ideal for full-motion, highly detailed 4K graphics presentations for visualization, 3D renderings, simulations, and more.


1×8 HDMI distribution amplifier

  • Delivers high performance, reliable HDMI signal distribution
  • Easy to install and deploy in commercial and residential applications

4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling, plus support for HDR formats

  • Ideal for new and emerging 4K/UHD and HDR-capable sources and displays
  • Compatible with 4K HDR10 and Dolby®Vision™ @ 60 Hz, as well as HLG (Hybrid Log-Gamma) for 60p HDR broadcast services
  • Fully supports video resolutions, audio formats, and color space formats in the HDMI 2.0b specification

HDCP 2.2 compliant

  • Adheres to latest specification for High-bandwidth Digital Content Protection
  • Allows protected content stream to pass between devices

EDID management

  • Manages EDID communications with the source through a display’s EDID or internally stored EDID
  • Ensures desired audio formats and video resolutions are provided to the AV system

Supports cascading up to eight units

  • Combine multiple Rondo 448 and other Rondo Series distribution amplifiers without compromising performance or reliability
  • System designs and configurations can easily be adapted or modified as needed

HDMI audio de-embedding

  • Extracts HDMI two-channel PCM audio to the unbalanced analog stereo output, and two-channel PCM or multi-channel bitstream audio to the coaxial S/PDIF digital output
  • Provides an additional integration option for AV receivers and whole-house audio systems

Multi-channel audio compliant

  • Passes through multi-channel audio formats from the HDMI input
  • Supports PCM, Dolby Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS® Digital Surround™, DTS-HD Master Audio™, and DTS:X®

Field-updatable firmware

  • Device can be updated in the field via USB port

Front panel power and signal status LEDs

  • LED indicators provide power and HDMI input / output signal status information
  • Provides easy setup and troubleshooting

Rack-mountable 1U, full rack width enclosure

  • Installs easily in rack mounted systems with included 19” rack mount brackets
  • Reduces installation time and cost

Included accessories

  • Installation guide, rack mounting brackets, and external universal power supply

Award-winning 10 year limited product warranty

  • Ensures long-term product reliability and performance in residential and commercial systems
  • Specify, purchase, and install with confidence



HDMI Specification HDMI 2.0, HDCP 2.2
TMDS Clock 600 MHz
UHD/HD 4096×2160(DCI)@60/30/24 Hz, 3840×2160(UHD)@60/50/24/25/30 Hz, [email protected]/24/25/29.97/30/50/59.94/60 Hz, [email protected]/29.97/30 Hz, [email protected]/50/59.94/60 Hz
VESA 2560×2048, 2560×1600, 2048×1536, 1920×1200, 1680×1050, 1600×1200, 1600×900, 1440×900,1400×1050, 1366×768, 1360×768, 1280×1024, 1280×800 1280×768, 1152×768, 1024×768, 800×600,640×480
Color Space YUV, RGB
Chroma Subsampling 4:4:4, 4:2:2, 4:2:0
Color Depth 8-bit, 10-bit, 12-bit
HDR HDR10, Hybrid Log-Gamma (HLG), and Dolby Vision™ @ 60Hz
Pass-through PCM 2Ch, LPCM 5.1, LPCM 7.1, Dolby Digital®, DTS® 5.1, Dolby Digital Plus™, Dolby® TrueHD, DTS-HD Master Audio™, Dolby Atmos™, DTS:X™
Sample Rate 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Bit Rate up to 24-bit
HDMI IN 1 – Type A, 19-pin female
HDMI OUT 8 – Type A, 19-pin female
ANALOG OUT 1 – captive screw, 5-pin
S/PDIF OUT 1 – RCA-type, female
FW 1 – Mini-USB, Type-A
MAIN 1 – locking connector, female
BACKUP 1 – locking connector, female
Indicators and Controls
Power LED Indicators 2 – LED, red (M, B)
Output LED Indicators 8 – LED, blue ( 1 – 8)
EDID LED Indicators 2 – LED, blue (INT, LEARN)
EDID 1 – momentary, tact-type
Resolution / Distance
HDMI In/Out @ 4K up to 5 meters up to 15 feet
HDMI In/Out @ 1080p up to 10 meters up to 30 feet
Power Input: AC100-240V ~ 50/60Hz 
Output: DC 5V
Consumption 6.75 W
Safety CE, FCC, cULus
Operating Temperature 0°C to 50°C 32°F to 122°F
Storage Temperature -20°C to 60°C -4°F to 140°F
Operating Humidity (RH) 20 to 90% non-condensing
Dimension (H x W x D) 44 x 433.8 x 255 (mm) 1.73 x 17.07 x 10.03 (inch)
Weight 2.78 kg 6.13 lbs
Safety CE, RoHS, FCC



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