LFM-2 Now Shipping

The LFM-2's have arrived and have been inspected. Shipments will start today. Thanks for your patience while they made their way over!

Well, I ordered my LFM-2 last week and I anticipate that the unit will arrive next week.

I want to thank Scott with Outlaw for providing me with some useful information via telephone.

My friends are scratching their heads trying to figure out why I would buy a 8" sub when other comparable priced 10" or even 12" subs are available. The operative word here being "comparable priced" not "comparable quality."

I can only hope that once I have the LFM 2 in place I can send my buddies back to their 10" or 12" sub simply envious of my 8" Outlaw sub.

More to come.

Thanks again Scott and happy holidays to you and yours!

dave in Buffalo

well the LFM-2 has arrived and I was pretty impressed with the packaging as well as the "black" cloth used for added protection in shipping.

Quick question as I am a novice when setting up the sub. My B&W speakers list the frequency response at 44Hz - 22kHz + /- 3dB. Is this where I want to set the cross over freq on the sub at 44Hz?

Also, does it matter if the pase switch is set to 0 degrees or 180 degress?

look forward to some feedback.

DM

Okay, let's see......

Are you running a surround setup(5.1/6.1/7.1)?
Does the LFM-2 have a crossover-out(bypass)setting?
If you are using a preamp/AVR with bass management, let that do the crossover duties and set your sub's crossover to bypass, or set it at it's upper-most setting to get it out of the way.

I'd start with an 80hz setting and listen how that compares to a 60hz(or other) setting. Most people run 80hz for a multi-channel setup, but if you have the option of different x-over settings for front, center, surround and sub you can experiment.

The phase is there to help dial in the sub when calibrating using a sound pressure level meter, such as the one most people have from Radio Shack. The setting that gives you the highest sound level reading on the meter, at the set X-over frequency, is where you want to set it(0 or 180 degrees).

Hi Cadboy! thanks for the quick reply.

I am running 5.1 but my AVM 20 can be used for 7.1 as well, just don't have the space for the two other speakers. The LFM 2 has a crossover-out bypass which I have set to the bypass mode because the AVM has a very flexible bass management system.

I will experiment with the unit but I believe this sub will really make these B&W's sound even better than they sound now.

all the best and thanks once again!

happy holidays from Dave in Buffalo!

Cadboy got you squared away on the phase switch. With a 44Hz -3dB point on the B&W's, I'd probably try 60Hz and 80Hz crossover points to find which I liked most.

Hi Gonk, I just got the LFM 2 and I am in the process of reading the info that came with the unit and trying to set the unit up.

I noticed on the product diagram in the instructions that it calls for a three prong plug, obviously with a ground but the plug itself from shippd by Outlaw is only a two prong plug??

Is it true that "humming" can occur without the ground plug?

Also, and based on your last post to Cadboy, you mentioned "trying the crossover points at both 60 and 80 and determine which you like the most." Enlighten me as to what you are actually looking for at those crossover levels? Again, remember this is new for me so if my questions sound either ridiculous or elementary, I aplogize for wasting your time

thanks in advance

Dave

Actually, the ground plug is often considered the culprit for ground loop hums, and the most common solution is the "lift the ground" with a cheater plug. A cheater plug on a piece of equipment designed to use a ground is not the best solution from a safety standpoint, but a product designed to not require a ground plug is often less susceptible to the problem.

It may not be the most scientific guideline, but I look for the crossover that sounds best in my room, with my hardware, and to my ear. Try a couple different crossovers with movies and music that offer some deep punch to them and see what sounds best to you.

what you are looking for is the smoothest transition between sub and speakers.ideal situation:you will never hear the sub,the bass will seem to come from the speakers.IDEALLY you will not be able localize the speakers.

this,in my opinion,is the ultimate goal of any system with any number of channels.(home or vehicle)

Thanks Paintload! your logic makes sense.

I hear so many HT systems dominated by the sub to such a point that the fronts to include the center is almost no-existent!

I will keep your logic in mind as I try to fine tune my new sub.

thanks for all your advice!

Happy holidays.

dave

To Gonk, if a preamp has Bass Management internally like most do, why does a subwoofer manufacturer build in a crossover freq dial on the back of subs systems?

Are there preamp and or receivers on the market that don't offer Bass Management and that is the reason for the crossover dial on the back of the sub?

Laslty, most web sites that I have visited suggest setting the crossover point at approximately 10hz above that recommended by the speaker manufacturer. On my speakers, B&W indicates these speakers can handle down to about 44hz. Based on the sites I went to, that would mean setting the Bass Management crossover freq to 55hz...???? Why would one allow the fronts and center to handle the bass that low when I could easily set the crossover through the preamp to say 70 or 80 and allow the sub to everything up to that level instead of everything up to 55 level?

Does my logic seem correct make sense?

look forward to your reply.

thanks in advance

Dm

If you put a sub in a stereo system or any system without a relatively modern surround receiver or processor driving things, you are not likely to have bass management (the RR2150 being the only exception that I am aware of), so there is still some value to retaining the ability to manage bass at the sub (assuming the sub offers the option of bypassing that management).

Some people like to keep the crossover point as low as possible to make maximum use of their speakers and to keep the sub tied to lower frequencies (which are less directional in nature, making the point source of the sub less likely to point itself out).