Hi everyone. I've had my system since it was new. Must be nearly 30 years old now. Arcam A75 integrated amp, bi amped with Arcam P75. Arcam CD92 and DT81 tuner. Last year my old Mission 773Es gave up the ghost. I bought a pair of Q acoustics concept 40s and absolutely love them. Unfortunately my A75 doesn't work too well these days and I'm thinking of replacing the amps. I don't use the radio but the CD player. I still use. I'm thinking about a streaming amp such as the Marantz PM7000N. What's everyones thoughts.? How would the sound compare to what I'd be replacing and would it work well with my speakers. I don't want to spend more than £1k.