I want more mid-bass (i think that's what you call it) from my bookselves. I have 2 Paradigm Titan v.5. I already have a subwoofer but it only go low and I want more punchy bass from my bookshelves. My receiver is a Marantz sr4002.

I have CSII music mode on with Trubass max and the receiver with max bass but its not enough.

What is your X-over setting?

not sure what that is. My speaker are set on small. LPF/HPF at 80hz.

setting speakers on large does give it more punchy bass from the bookshelves but I read that most speakers should be set on small and I don't want to damage my speakers.

It would help if you couldp provide the make and model of your subwoofer. Let us also know how your sub is connected to the AVR so we will have a better understanding of your setup.

I don't think the SR4002 lets you cross lower than 80hz, so you're kind of screwed there (I own the SR4001).

If you have a band of EQ on your sub you may be able to raise the midbass.

If you don't, there's not much else you can do. Unless you pick up an EQ to go between the receiver and sub. Probably not worth it though.

I want more mid-bass (i think that's what you call it) from my bookselves. I have 2 Paradigm Titan v.5. I already have a subwoofer but it only go low and I want more punchy bass from my bookshelves. My receiver is a Marantz sr4002.

I have CSII music mode on with Trubass max and the receiver with max bass but its not enough.

I know exactly what your problem is. Placement. The Titans are a front ported speaker which while this is good for bass definition and clarity, it doesn't agree with many acoustic situations. I have first hand experience with this because my V.2 Monitor 9s are front ported and I hear almost no midbass from them. My friend bought Titans after hearing them at a local retailer here and go them to his place and found that their bass sounded very empty. Already having experience with this with my 9s, I told him that he could either find a different placement, or get the Mini Monitors instead since they're back ported. He got the Minis and got all of his midbass back. In my situation with my 9s, I had a choice to make. Either I corner load them and have all the midbass I can stand with the nasty side effect of harsh highs and empty midrange, or I place them where they sound the best minus the midbass and use a midbass module. I chose the midbass module which is also rear firing. I have my 9s crossed over at 100Hz and the midbass woofer does 100Hz to 50Hz and the subwoofer does all below that. DON'T USE AN EQUALIZER. It will waste power, endanger your main speakers, and give you little to no results.

Room treatments are another way to go to help combat your lack of bass. I don't have any first hand experience with that since I chose the cheaper way for me which was to use existing equipment I already had to fight the problem a different way and IMO a way more effective way. Bass traps may reduce or even drastically reduce your problem, but my method totally eliminated the problem. HSU sells midbass modules, and their kind of pricey. I'm using an old Paradigm PS-1000 high passed by a Paradigm X-30 subwoofer control module which assists low passing my subwoofer very sharply at 50Hz.v Granted HSU's module is pricey, but since my PS-1000 originally was 450 bucks and the X-30 was 200 bucks, the HSU doesn't seem like a bad deal.