Bi-amp through receiver vs pre out to 2 channel for fronts

Also, If I have a receiver to an integrated, can I connect my powered sub to both of them since my sub has 2 rca input lines? 

This way I’m assuming I can have a sub playing with the integrated amp for just music. I don’t know if this will work though because an integrated doesn’t have crossover programming right? 

You can connect the integrated amp pre-out to the subwoofer line in , use the subwoofer's internal low pass filter set to 80Hz to begin with, on the HT receiver setup menu you need to select front R/L speakers to "Large" and No subwoofer.

on the HT receiver setup menu you need to select front R/L speakers to "Large" and No subwoofer.

On this setup the HT receiver will send the LFE signal to front speakers.The downside of this setup is those small front speakers will operate at full range (Not high passed)!

Right, I thought of this but I don’t want the fronts to be full range. 

For some reason, the Monitor Audio Gold 100s don’t seem to be performing as well as my silver in the mid range coming from the bookshelf woofer. Not sure if it’s because monitor got rid of that silver cone in the middle or not. 

Anyway, I think I have my way forward. I’ll start with a 5 channel Atoll Amp from my receiver. Then, in the future I can either buy a preamp with bass management and ht passthrough to connect between the receiver and amp, or buy an AV processor and call it a day. I’m sure either will be good enough for me, better than just using my receiver. 

@craigert 

The Atoll IN100SE integrated amp does not have built-in DAC. It is an analog integrated. It does not have any digital inputs such as USB, spdif/coaxial, Toslink (optical digital). It has only analog linestage inputs as well as HT bypass.

Analog stereo integrated amps or analog stereo preamps are usually better than the ones with built-in DAC as there's no interference caused by and noise introduced by its digital circuitry. 
Digital-to-analog conversion process could potentially induce noise to the critical analog audio stages circuitry and thus will have negative impact on sound quality. But I've also heard integrateds or preamps with onboard DAC that sound incredible regardless when used as an analog preamp or when using its digital inputs thus using its onboard DAC assuming it is a good DAC implementation and configuration.