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The Rialto 400's amplifier delivers over 100 watts of power per channel into 8 ohms and 200 watts per channel into 4 ohm loads. Additionally, the Rialto 400 can be bridged to perform as a mono-block amplifier
. The amplifier features a built-in Wolfson DAC. This choice of DAC reportedly allows connected digital audio sources such as Apple iTunes library, Pandora and Spotify to provide higher quality acoustics with clearer, more accurate analog signals during playback.
All of the performance and power of the Rialto 400 has been designed and engineered into a compact design that sits at 8.5" wide, 2.9" tall and 5.4" deep.
Equipped with AudioControl's patent-pending AccuBASS circuitry, the Rialto 400 allegedly rejuvenates the bass response lost in most digital compression schemes and brings it back to the signal path. This results in a richer and fuller audio performance with better bass and mid-bass response often missing in compressed music.
The Rialto 400 has an array of digital and analog inputs, including PCM to connect with digital audio outputs from televisions and a 12V trigger for use with control and automation systems. Toslink, coaxial, line level RCA, 1/8" audio and speaker level inputs for interfacing with source units without line level are included in the specification.
In order to keep these inputs systemized, the Rialto 400 utilizes AudioControl's SMART Signal Sensing, which allows the user to prioritize which input to use based on personal preference. When the system is turned on, it is configured to automatically search for the preferred active signal and decipher the appropriate processor needed in communication with one of the system's digital or analog inputs. For example, if a homeowner decides to switch from using a separate distributed audio system within the home to his or her integrated Sonos Connect set-up, the Rialto 400 will recognize the change and switch to using the connected digital audio input used by the Sonos.
The Rialto 400 also features an integrated headphone jack to allow it to be used in other applications such as gaming systems or with personal audio products such as headphones
The Rialto 400 will be available through AudioControl authorized dealers and will begin shipping in February 2013. The product is designed, engineered and manufactured in the United States and is backed by a 5-year warranty. The suggested price for the Rialto 400 is $799.