Wont need "DI", sorry this one is over my head, not familiar with that abbreviation.
What does your reciever have for "bass management"? Crossover points available? Sub EQ of any kind? Details here please for my recommendation as to which amp version would be better(XLR that can daisy chain, or PEQ2 version with a 1 band adjustable parametric EQ).
As for which model on top of that. My recommendation is the F15HP featuring Rythmik's top of the line driver featuring a slightly larger one piece aluminum 15" cone and larger motor structure/greater xmax mated to a more efficient class H 600 watt amp. It gives you a couple extra db of headroom(which is GOOD)for movies and dynamic music over the regular F15. Its a couple hundred bucks more, but its worth it without question.
Here are the options I'm tracking per the company website:
"DI - The standard amplifier is A370PEQ2 (370WRMS PEQ). We have a new amp option for those who need more inputs. This will suit those who want to connect both an AV receiver and a 2 channel pre/power amp to the sub. Our DI model amps are available for $50 more. The response curves with various extension frequency/damping combinations can be found in our EQ page.
Crossover - The 24db/octave crossover option is only available on our PEQ and XLR versions. The standard version only has a 12 db/octave crossover.
Balanced professional version - For professional use, a balanced input version is available. The outputs allow multiple subwoofers to be connected. Simply daisy chain the connections, running output from the first (master) subwoofer to the input of the next.
PEQ parametric version - Our PEQ version comes with a few extra options which aren't provided on our standard amplifier. First, there is one band of parametric EQ with adjustable frequency, gain and bandwidth. This means you can not only control the boost or cut, but also the width of the filter.
Additional bass management options are also provided. A switch allows the user to select a 12 or 24 db/octave crossover slope setup option. Where the higher slope (24db/octave) is selected, the amplifier uses a variable 12db/octave filter in addition to a fixed 12db/octave filter. One can choose with a switch the corner frequency of the fixed filter as either 50 or 80 Hz, which will suit most situations. The variable filter can be used for fine tuning."
The receiver's bass management (RX-A2000 or 3000) per Gene's review:
"As was the case with the RX-Z7, the RX-A3000 provides for variable crossover settings per speaker group (ie. Mains, Center, Surrounds but doesn't give you a choice for the subwoofer crossover.
Yamaha still allows you to set the center and surround channels to "large" even if you select "small" for the main channels.
The crossovers worked as expected for a THX Ultra2 certified receiver (except the RX-A3000 is not THX certified) as indicated by the 12dB/oct High Pass Filter (HPF) slopes on speakers set small and 24dB/oct Low Pass Filter (LPF) slopes on the subwoofer output which we measured with our Audio Precision APx585. The only oddity was that the subwoofer channel was down about 1.5dB at 10Hz which to us indicated a rather conservative HPF employment on this channel since this slight attention didn't show up on any of the seven main channels."
Per the RX-A3000 manual:
"The subwoofer crossover frequency can be selected from 40, 60, 80 (default), 90, 100, 110, 120, 160, or 200hz."
Hope this answers the mail.
Looking at all that, I figure the F15 w/PEQ would give me a little extra flexibility if needed. Of note, I've still got the F15HP in the back of my mind...
