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BK series of professional amplifier
1, the appearance of new, superb technology, reliable quality. 2, the perfect protection circuit. The stability of the machine depends on the advanced complete protection circuit. ● BK series models of protection circuit not only stay in the DC protection of the speaker above, more importantly, it is adapted to the harsh working environment, and can easily work. 3, limiter ● It is a very effective protection against damage to the speaker protection circuit. When the power amplifier clipping overload, will produce a lot of harmonic energy, the speaker overload and damage. To this end, in the BK series amplifier specifically set up a non-linear comparator, once the signal is clipped, you can immediately adjust the power amplifier circuit work until the elimination of clipping so far. 4, excellent audio performance ● BK series amplifier has excellent signal conversion characteristics. It has very small harmonic distortion (THD), intermodulation distortion (SMPTE-IM), instantaneous intermodulation distortion. Pure, natural sound interpretation of the true music to the perfect. 5, touch the boot soft start, anti-surge impact protection. 6, boot delay, shutdown mute anti-shock protection. Protects the loudspeaker from being subjected to strong inrush current.
BK series
Technical Parameters
Product Application



model BK300 BK400 BK600 BK800 BK900 BK1300
Maximum rated power (8Ω) 300W 400W 600W 800W 900W 1300W
Stereo mode (4Ω) 450W 600W 900W 1400W 1600W 2000W
Stereo mode (2Ω) Not applicable 800W 1100W 1600W 2000W 2600W
Bridging mode (8Ω) 700W 1000W 1800W 2600W 2700W 4000W
Bridging mode (4Ω) Not applicable 1200W 2000W 3000W 4000W 5200W
Input sensitivity 0.775V,1.0V,1.55V
Total harmonic distortion < 0.01% Power@8Ω 1KHZ
Frequency response 20Hz-20KHz(+0/-0.1dB)
Signal to noise ratio 103dB 105dB 105dB 106dB 106dB 120dB
Damping coefficient 400:1 450:1 500:1 550:1 550:1 620:1
Conversion rate 60V/us 60V/us 80V/us 80V/us 80V/us 80V/us
input resistance  

Balanced: 20KΩ, Unbalanced: 10KΩ

Separation degree ≤ 70dB XLR socket XLR and 1/4 "TRS socket balanced input
weight 12Kg 16Kg 22Kg 23Kg 33Kg 41Kg
Appearance volume 483W*420D*88H 486W*490D*88H 483W*510D*132H