I have very specific wants for a bass cab simulator, but unfortunately, nothing on the market currently is hitting my buttons, and I'll tell you why... I only want the sim to go through the DI line, not my amp line. Every time I have a cab sim through my amp, the sound in my amp darkens up. And the currently available cab sims are either unsuited for bass, or they don't have flat response, or they're attached to pedals that do other things that I don't want. I use a REDDI, and it's very important to me that its magic sound isn't touched in any way, shape or form, except of course a high end rolloff similar to an 810e. The Palmer PDI09 was almost acceptable, but looking at freq charts posted here, it's got a hump centered at about 250 hz. Might be small potatoes in the grand scheme of things, but I don't want it. I know I can't be the only one who wants this, so I'm posting it here for commentary. So here's what I want out of a cab sim, and if any indie builders are interested in making this for me, please contact me either in this thread or a PM. And if it can't be done, please let me know where I'm going wrong. But I'll be happy to pay reasonable money to get this thing built, and I believe you'll sell it to way more than just me. Here are the requirements: ---Must have balanced XLR ins and outs. Combo jacks are OK, as are additional jacks, but I really only want this in my DI line and I'd rather not have to pay for additional ins and outs that I won't use. ---A simulation of the 5k rolloff you get with a Heritage 810e or a flatback SVT 810 with CTS alnicos. Close approximations are good enough, but I don't want a brick wall LPF that hits 5k and stops. Optionally, it can have a low end rolloff similar to the 810e, but if it does, I'd like them able to be switched on and off independently, as I find the highs are always more troublesome than the lows. Soundmen will almost always grab the troublesome lows but are sometimes hesitant to grab the highs, even when I tell them I don't want them. ---Other than the aforementioned rolloffs, it must not interfere with the DI in any other way. No compression, no EQ curves that the builder might like, etc. All I want is my REDDI with the highs rolled off similar to a Heritage 810e or flatback (optionally the lows too) but otherwise flat response. ---Passive or active is fine, but if it can be done passive, that would be better for me since I'd rather not mess with a power supply. ---On-off switches might be desirable, but doesn't have to be footswitchable since it'll sit on my amp. A footswitch is OK, however, for me, the smaller, the better. Thanks for reading!