Topping the A70 Pro is simple and very effective. It integrates a balanced XLR set and a stereo RCA set, but with the possibility of connecting the A70Pro to the Ext90 you can get a total of 4 balanced XLR inputs and 2 RCA inputs. Three connections are available on the output side; balanced 4.4 mm jack output, 6.35 jack output and 4 pin XLR output. There is also an RCA output and an XLR output for the preamplifier function.
The Topping A70 Pro can also be used as a preamplifier. It also has high performance as a preamplifier with an output impedance of 50 Ohms on RCA and 100 Ohms on XLR. This allows the Topping A70 Pro to be connected to many amplifiers.
Maximum THD+N: <0.00005%
Maximum SNR: 147dB
Maximum dynamic range: 147dB
Frequency response: 20Hz – 40kHz
Maximum output levels: 56Vpp (low gain), 54Vpp (high gain)
Actual noise level (A-wt): <0.6uVrms (low gain), <1.8uVrms (high gain)
Lowest crosstalk: -133dB
Gain: 6dB (low gain), 19.8dB (high gain)
Output levels:
17,000mW x2 @16Ω
12,600mW x2 @32Ω
6,000mW x2 @64Ω
1.370mW x2 @300Ω
670mW x2 @600Ω
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