Fosi v3, Fosi Z3 and Aiyima A07 Max

[musica]

can i use one of these 3 amplifiers Fosi v3 fosi Z3 and Aiyima A07 Max as a stereo power amplifier, would I lose sound quality compared to the integrated Denon PMA 700AE ?

 

[Zek]

If you already own a Denon PMA700AE, why would you buy one of the mentioned amplifiers?

 

[musica]

If you already own a Denon PMA700AE, why would you buy one of the mentioned amplifiers?

I want to connect the miniDSP and an active sub between the Denon and the fosi or Aiyima.
control sources and volume all with the Denon, can I?

 

[musica]

I must drive a speaker with these features: speaker type: 3-way, bass reflex suggested amplifier: 30÷120 Watt impedance: 4÷8 Ohm sensitivity (2.83 V/1m): 91 dB frequency response: 46÷22000 Hz crossover frequency: 70 / 3100 Hz crossover slope: 12 / 12 / 12 dB/oct

 

[carlmart]

Did you measure in-room response of the speakers?

70 Hz looks a bit low to cross the sub. What is the low frequency response of the sub you plan to use? One or two subs?