What direction do I take for an upgrade?


Hello everyone,
I am new to this site and this is my first post so feel free to yell at me if I am posting in the wrong spot. I currently own 4 Paradigm Monitor 7 v.4 powered by a HK 3470 and a CA 540D. I know I am in need of some low end and here are my two options. Maybe someone could give some better direction. Option 1: CA 840A and a pair of Paradigm PDR-12. Option 2: Acurus A250 as a bass amp for two passive aluminum magnesium subs, an Acurus A100 for my Monitor 7's and an Acurus L-10 preamp. Option one might be cheaper by about $300. But I Am just looking for some advice for now. Thanks in advance!!
afavro24
I like Bob Reynolds advice. Get a hsu sub. I started this journey with a hk 3480 and have some experience with what you have and are trying to achieve. Several questions. Are you powering 4 speakers in one room? What is your budget? If you are pleased with the hk sound then stay away from the acurus. It is much brighter sounding. Phil Brady.
Iam powering 4 paradigm monitor 7's in one room. The only reason I had considered trading my HK for the cambridge is because the dealer said he would give me $380 for my HK on trade for the Cambridge 840A. As for the sub(s), I have heard of HSU Research sub but don't knwo much about them. As far as the paradigm subs, I had thought about only one PW-2200.
I forgot to mention my budget... The PW-2200 is about $750 and the Cambridge Integrated is about $970 after trade. Anywhere in that range would be fine. Also I am not familiar with HSU research models, any advice would help and thanks for everything so far!!!