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AudioControl Rialto 400

2.1-channel zone amplifier with DAC (White)

Item # 161RLT400W

This amp has a great DAC and dedicated voice assistant input, and it packs a 100-watt wallop - 400 watts bridged.

This amp has a great DAC and dedicated voice assistant input, and it packs a 100-watt wallop - 400 watts bridged.

Aria
Need help?
Contact our Virginia-based experts.
New

Item # 161RLT400W

In stock
$849.00

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Aria
Need help?
Contact our Virginia-based experts.

About the AudioControl Rialto 400

Great amp for music streamers, voice assistants, and more

AudioControl designed the Rialto 400 as a simple but flexible solution for multi-room streaming zones with voice control. Its always-prioritized 3.5mm input for voice assistants lets you connect a compatible voice assistant device (sold separately). When you're listening to music, ask Alexa to add a playlist to your queue. The amp changes inputs quickly so you can you hear Alexa's response, then automatically switches back so you can enjoy your tunes.

Great amp for music streamers, voice assistants, and more

AudioControl Rialto 400 (shown in black)

The Rialto 400 has smart automatic switching, a high-performance DAC, and assertive transparent power.

AudioControl designed the Rialto 400 as a simple but flexible solution for multi-room streaming zones with voice control. Its always-prioritized 3.5mm input for voice assistants lets you connect a compatible voice assistant device (sold separately). When you're listening to music, ask Alexa to add a playlist to your queue. The amp changes inputs quickly so you can you hear Alexa's response, then automatically switches back so you can enjoy your tunes.

The Rialto 400 delivers a clean and tasty 100 watts of Class D amplification per channel — 400 watts when bridged. Its digital and analog inputs can handle your choice of sources. (Important note: since there's no volume control in this amplifier, your sources must have adjustable volume.)

This amp's small footprint and understated chassis design help it fit into any space. And AudioControl's bulletproof USA-made construction will stand the test of time.

Flexible connections and control

Connect to the Toslink optical or coaxial digital input to make use of the Rialto 400's fine Wolfson DAC, which decodes digital audio at up to 24-bit/192kHz. It also has an analog input that lets you connect, for example, an analog receiver or preamp with a phono input, or an external DAC.

Three rear-panel gain controls let you balance the relative signal strengths of your input sources, adjustable with a flathead screwdriver. A fourth flathead gain pot controls AudioControl's patented accuBASS™ adjustment for musically boosting lower frequencies. There's even a front-panel 3.5mm headphone jack.

Chain of command starts with your voice

As described above, the Rialto 400 automatically gives priority to your connected voice controller, but you can assign secondary priority to the digital or analog input using the rear-panel DIP switches. For example, let's say you like to stream background music using a digital input, but when you really want to listen, you put on vinyl. If you prioritize the analog input, then any time you drop the needle the amp will automatically switch to that. When the record ends, it will sense no signal and go back to the streaming digital input.

Configure it for your needs

Use this amp to power a pair of floor-standing or bookshelf speakers and you have a simple solution for great TV and streaming audio in your den, bedroom, or wherever. You could even hook up your legacy receiver to this amplifier using line-level or speaker-level connections.

Connect a powered sub to the Rialto's dedicated mono RCA subwoofer output for some extra bass. Or break out a really beastly speaker pair, add a second Rialto 400, and operate in bridged mono mode with all the same features and flexibility.

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Product highlights:

  • 100 watts x 2 into 8 ohms at 0 .09% THD
    • 200 watts x 2 into 4 ohms
    • 400 watts into 8 ohms in bridged mono mode
  • Wolfson DAC with 24-bit/192kHz maximum resolution
  • frequency response: 20-20,000 Hz
  • signal to noise ratio: 95 dB
  • front-panel status LED
  • front-panel 3.5mm headphone jack
  • rear-panel DIP control switches:
    • standby off: disables automatic 8-minute idle shutoff
    • digital: prioritizes digital input signal
    • analog: prioritizes analog input signal
    • all on: no priority
  • rear-panel flathead screwdriver adjustments for input signal gain and accuBASS level
  • rear-panel 110-120V/220-240V voltage switch
  • bottom-panel mono switch for bridged mono mode (rear-panel mono LED indicates status)
Connections:
  • priority 3.5mm voice assistant input
  • Toslink optical or coaxial digital input
    • do not connect both digital inputs at the same time
  • stereo RCA input
  • mono RCA subwoofer output
  • 5-way binding posts for speaker connection
  • 4-pin Euroblock speaker-level input for connecting a receiver or amp
  • 3.5mm 12V trigger output
  • no built-in volume control; connected sources must have adjustable volume
Dimensions and warranty:

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More details on the AudioControl Rialto 400

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Features & specs

General
Number of Channels 2
Power Output per Channel (8 ohms) 100
Power Output per Channel (6 ohms) ---
Power Output per Channel (4 ohms) 200
Frequency Response 20-20k
THD 0.09%
Minimum Impedance 4
Bridged Power per Channel 400 watts
Speaker Outputs 2
THX Certification ---
Width (inches) 8-1/2
Height (inches) 3
Depth (inches) 5-7/16
Weight 4.5 pounds
Parts Warranty 5 years
Labor Warranty 5 years
Inputs & Outputs
Number of Inputs 3
Input Type RCA, Toslink, Coax,
Removable Power Cord IEC 3-prong
Level Controls Yes
Speaker Connectors 5-way post

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