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Consonance Audio (Opera Audio)

Consonance ® tube amplifiers deliver neutral and natural sound.
Located in Beijing, Opera Audio has become one of the leading tube audio amplifier manufacturers in China. We have a variety of products based on this feature.Consonance ® tube amplifiers are designed and manufactured by Opera Audio. Like other Hi-End manufacturers, Opera Audio specializes in the development and research of tube audio amplifiers. The goal of realizing the beauty of music since the establishment of the company six years ago has not been changed. Through the years of development,  Technology is not the only means of creativity; To enable the perfect marriage of workmanship and musical arts, they must learn from the past and continue to challenge the perfection level. To achieve this goal, they will continue to perfect their product by injecting more cultural and human factor into there products, it increases both practicality and outlook, bringing more spiritual satisfaction and enjoyment to the users.
The 7-year-old EL34 integrate amplifier might be the most successful model in CONSONANCE tube products line. Including M100,M100MKII, M100SE and M100plus, the well improved push-pull set has already satisfied more than ten thousand user around the world. This amplifier may also be ordered in 300B version named M100Splus or 6L6GC  version named M99plus with less power output. Class AB,push-pull design delivering 40 watt output power. A pair of EL34 output tubes running in ULTRA-LINEAR mode 12AT7 and 6SN7 dual triodes for input stage and drive stage, A little negative feedback with precision RC circuitry for more linear output. Remote control.

--CONSONANCE M100 plus tube integrated amplifier

CONTROL FUNCTIONS: Volume, Input, Power On/Off
POWER OUTPUT: 40 watt x 2, RMS 1kHz
TOTAL HARMONIC DISTORTION: less than 1%(40watt, 1kHz)
FREQUENCY RESPONSE: (-3dB points at 10 watt) 6Hz-60kHz
INPUT SENSITIVITY: 180mV
INPUT IMPEDANCE: 100k 
OUTPUT IMPEDANCE: 4,8 ohms. (User selectable.) 
SIGNAL/NOISE: 90dB
CONSUMPTION: 90watt
INPUT INTERFACES: 3 groups (RCA) - 1,2 and 3 
VACUUM TUBE: EL34 x 4, 12AT7 x 2, 6SN7 x 2
DIMENSIONS: 446(L) x 264(W) x 155(H) mm 
WEIGHT: 17kg(net);17.5kg(shipping) 

--CONSONANCE M100Splus tube integrated amplifier

CONTROL FUNCTIONS: Volume, Input, Power On/Off
POWER OUTPUT: 25 watt x 2 
TOTAL HARMONIC DISTORTION: less than 1%(10watt, 1kHz)
FREQUENCY RESPONSE: (-3dB points at 10 watt) 8Hz-60kHz
INPUT SENSITIVITY: 180mV
INPUT IMPEDANCE: 100k ohms
OUTPUT IMPEDANCE: 4, 8 ohms. (User selectable.)
SIGNAL/NOISE: 90dB
CONSUMPTION: 120watt
INPUT INTERFACES: 3 groups (RCA) ---1,2 and 3
VACUUM TUBE: 300B x 4, 12AX7 x 2, 6SN7 x 2
DIMENSIONS: 446(L) x 264(W) x 155(H) mm
WEIGHT: 17kg(net);17.5kg(shipping)

--Consonance M400S mono block tube power amplifier

CONTROL FUNCTIONS: Pwr On/Off Inputs: Left, Right
OUTPUT IMPEDANCE: 4,8 ohms. (User selectable.) 
OUTPUT POWER 1 kHz for less than 1%THD: 40W x2
BANDWITH at - 3dB: 6Hz to 60kHz
SIGNAL/NOISE : 90dB
INPUT INTERFACE  1 group (RCA)
INPUT IMPEDANCE: 100k
CONSUMPTION 90wx2
TUBES EL34x 4, 6922x2, 6189x2
DIMENSIONS 355(L) x 200 (H) x 150(W) mm x 2
WEIGHT 10.5kg x 2(Net); 21.5kg (Shipping)

--Consonance M500 mono block tube power amplifier

300B Class A single-ended sets.
Classic self-sustained bias design.
Absolute dual-monoblock design.
Single 6SL7 drive single 300B per channel.
Tube rectifier and choke-filter employed in power stage.
Entirely hand wired using KEMBER pure copper cable. 
Cherry-wood made front panel with nature color.
All power switch set on the real penal.
Single 6SL7 dual triode running at the drive stage.
Very gentle voltage rise-time.
None negative feedback.