New Amp Search- MBL. Spectron. Pass ??

I presently have a Spectron Musician III Mark 2 Amp (600 wpc @ 8)  MBL Corona Pre, T+A Dac 200 which is a pre also.   Speakers are B&W 802d and streaming is thru a Pro-ject Stream box S2 Ultra S2.   I listen to QOBUZ , ripped CD’s and  VPI Classic with Ortofon Cadenza red and Whest p30rt phono.   

I just acquired the T+A DAC It is connected directly to my Spectron amp via balanced connectors.   My CD is connected to the dac via SPDIF and there is a analog section that connects the Whest.

I was looking to purchase MBL 9007 mono blocks and drug my feet too long and they were sold.      I really like MBL and T&A sound and build quality but the new prices for these amps are beyond what I am willing to spend so I have been searching for used.    I am not familiar with Pass.

I listen mainly to Rock, Blues and some Country, Pop and like a big soundstage, airy detailed sound and appropriate bass when it’s in the recording.   On the warm side but crisp and fast, lol

What are your suggestions?    

Thanks Jeff