Leaderboard

Was working all weekend so I am a little late to the discussion. I think when most ppl say they 'hear' more output from rearfacing, what they are really hearing is coloration of the sound. True lows should be felt and not heard. when I was running only 5-600 watts I almost perfered the rearfacing too, ALMOST. NOW that I have upped the power I much prefer the super clean lows, and my brain will no longer except anything less. a side note, I have my BTL crossed at 50hz. SOOO much easier to get the true lows with more power and you can get rid of as much coloration as possible. I know you are set on the rear firing, and are just going over the details, but I still wanted to give you my opinion. Have you ever played with a 4th order BP box? thats always what a rearfacing setup sounds like to me, like the sub is in the next room and you are just audibly hearing and feeling what makes it to you. VERY colored in my opinion. I actully like the sound of BP boxes on some genres of music. eg. rap, house, techno, BBM, C&S. So thats why I ask about the BP. Very effecient. (had a BP in my last car)

Will you be plugging the RCAs into the 5+6 inputs or using the signal from the 1-4 inputs? Flat button out to use the on board crossovers. The Leviathan is able to do a three way active with just using the 1-4 inputs. That is why the switch is there, so you can use the 1-4 signal for the sub channel and it just uses the signal before any processing is done.

So why would you use a DMM instead knowing that each amp clips at different levels? Ignoring issues is a surefire way to blow things up. A minor variation in clipping levels isn't going to be enough to matter. If there is a dramatic difference in clipping points, then there are some QC issues that need worked out in the amplifiers. Oscope isn't necessarily a clipping-avoider anyways. Sure, with a 0db test tone clipping will be avoided. But the anemic average power output resulting from using a 0db test tone to set the gain isn't going to satisfy a lot of people and not optimize the use of power from the amplifier. That's why there are so many complaints about a loss of output when someone follows the DMM gain setting tutorials. A less conservative gain setting is going to allow a higher average power output but with some minor clipping of the transient peaks. A small amount of clipping at the transient peaks isn't going to damage anything unless you are already way overpowering the drivers. My advice would be to just set one of the amps by ear, then measure the voltage and set the other to match. Anybody with properly functioning ears and a little experience should be capable of satisfactorily setting a gain by ear. The DMM/Oscope method is a good recommendation to help someone completely lost find a decent starting point. Beyond that about the only time I'd worry about a DMM is to level match multiple amplifiers.

The flat button is there to bypass the LP filter, gives you a full range signal. The LP button next to it is there to select which input source you want to feed the 5+6 channels either 1-4 inputs or 5+6 inputs.

It's hard to read how people are talking on a forum. So maybe you should understand that just because you read a response in a certain tone, the poster could be coming from a completely different angle. It IS a forum, so it's really easy to ignore what you want and only take in what you want, so if you think other people are getting super serious then you be the bigger man and don't let it get to ya' Oh yeah, I've owned my BL for about a year and a half now I couldn't tell you what numbers I'm sending it because i really have no idea. If you really want you can tell me a way to measure the wattage, and to make you happy ill do that for you if i have the equipment.

I can tell you that without a doubt a much larger impact on frequency response will be the change in drivers themselves. You wouldn't know how the xcons sound on 32 hz anyways, so you wouldn't know what to compare to, apples to apples. If you want to see what that frequency change will do to the same driver, model one in winISD or something like that. Chances are it'll show you all frequencies are within 1 maybe 1.5 db of each other between boxes tuned to 30 and 32 hz.