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A01 A02 A03 A1001 A3001 A04 B03 B01 M1 A07 A05
Model A01 A02 A03 A1001 A3001 A04 B03 B01 M1 A07 A05
SKU B2D1775B B2D1887B B2D1845B B2D1598B B2D1797A B2D1783A B2D2280 B2D2276 B2D2204 B2D1995 B2D2115
Status On Sell Out of Sell On Sell On Sell On Sell On Sell On Sell On Sell On Sell On Sell On Sell
Type 2.0CH Amp 2.0CH Amp 2.1CH Amp 1.0Full-range/Sub Amp 1.1Full-range/Sub Amp 2.0CH Amp 2.0CH Amp 2.1CH Amp 4.0CH Amp 2.0CH Amp 2.1CH Amp
Bluetooth QCC Bluetooth5.0 Bluetooth5.0 CSR Bluetooth4.2 NO NO NO Bluetooth 5.0 Bluetooth 5.0 Bluetooth 5.0 NO Bluetooth 5.0
Output power Max 50W+50W 50W+50W 50W*2+100W 100W 300W 175W+175W 160W+160W 50W*2+100W 50W*4 300W+300W 100W+100W
Input AUX,Bluetooth RCA,Bluetooth,USB RCA,Bluetooth RCA RCA  RCA USB, Bluetooth, RCA USB, Bluetooth, RCA RCA / U disk / Bluetooth RCA RCA
Bass&Treble control YES NO YES YES YES YES YES NO NO YES
Output Passive speaker Passive speaker Passive speaker.Passive Sub Passive speaker.Passive Sub Passive speaker.Passive Sub.Active Sub Passive speaker Passive speaker Passive speaker Passive speaker Passive speaker Passive speaker
Input voltage DC19V-24V DC19V-24V DC19V-24V DC19V-24V DC32V5A DC32V5A DC19-35V DC12-24V DC12-24V DC24-48V DC19-24V 
Futures 1.QCC3003 Bluetooth5.0
2.with Bass&Treble control
3.50W*2
4.Strong Bass
1.Bluetooth 5.0
2.with U disk play
3.with Switching up and down
4.50W*2
5.High Sound quality
1.CSR8635 Bluetooth4.2
2.with Bass&Treble control
3.50W*2+100w
4.Treble clear.Strong Subwoofer
1.100W
2.Support Sub/Full-range Switch
can connect active subwoofer. as 2.1 .5.1 .7.1 
1. 300w High power
2. Support Sub/Full-range Switch
3.with active sub output
4. can connect active subwoofer. as 1.1. 2.1 .5.1 .7.1 
1.TPA3251 amp chip.
2.Op amp NE5532
3.2pcs UF3000 Large reservoir filter capacitor
High Power 175W*2
1.Bluetooth 5.0
2.TDA7498E amp chip
3.NE5532
4.160W*2
1.Bluetooth 5.0
2.TPA3116D2 amp chip
3.NE5532
4.50W*2+100W
1.Bluetooth 5.0
2.TPA3116D2 + 6925C + NE5532
3.50W*4
1.TPA3255+NE5532
2.300W*2
1.Bluetooth 5.0
2.TPA3116*2+NE5532*4+QCC3003
3.100W*2
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