Two Steps
Active Member
I have a mint Concept 11.0 in my closet that could use refurbishing internally. I have always lusted for an AU-919 and am at a crossroads. My options seem to be a) pay a good chunk of change to get the 11.0 up to sonic snuff or b) sell the 11.0 for good money and find an AU-919 or AU-717.
Does anyone have direct experience with either of these units? My everyday driver is a refurbished Marantz 2230 and Sansui 661.
I have no experience with higher wattage units and what power and authority they bring to the table.
Here are the specs for the Concept 11.0. Does anyone one know the sound signature of the Concept receivers?

Here are the specs for the AU-919.
Specifications
Power output: 100 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.008%
Damping factor: 100
Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 74dB (MC), 90dB (MM), 100dB (line)
Channel separation: 75dB (MM), 70dB (MC), 80dB (line)
Output: 150mV (line), 1V (Pre out)
Speaker load impedance: 8Ω (minimum)
Dimensions: 430 x 168 x 428mm
Weight: 21.4kg
I appreciate the input. In my head I am looking for authority, a clear presentation of music, solid bottom end and not too harsh. I like what the Marantz 2230 offers in regards to 'smoky' presentation but I am looking for a bigger sound with a bit more clarity. My source is Google Chromecast Audio streamed from Spotify Premium with the Extreme Quality setting.
Does anyone have direct experience with either of these units? My everyday driver is a refurbished Marantz 2230 and Sansui 661.
I have no experience with higher wattage units and what power and authority they bring to the table.
Here are the specs for the Concept 11.0. Does anyone one know the sound signature of the Concept receivers?

Here are the specs for the AU-919.
Specifications
Power output: 100 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.008%
Damping factor: 100
Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 74dB (MC), 90dB (MM), 100dB (line)
Channel separation: 75dB (MM), 70dB (MC), 80dB (line)
Output: 150mV (line), 1V (Pre out)
Speaker load impedance: 8Ω (minimum)
Dimensions: 430 x 168 x 428mm
Weight: 21.4kg
I appreciate the input. In my head I am looking for authority, a clear presentation of music, solid bottom end and not too harsh. I like what the Marantz 2230 offers in regards to 'smoky' presentation but I am looking for a bigger sound with a bit more clarity. My source is Google Chromecast Audio streamed from Spotify Premium with the Extreme Quality setting.