Sub - LFE input or RCA?
EndersShadow
Posts: 17,596
in Speakers
So If I remember right with my Elemental Designs A2-300 if I use the 2 RCA inputs rather than just the LFE input I get a 3db increase in SPL across the board. Is the same true of all sub amps or just specific ones?
I ask because the Dayton SA-1000 I have for my DIY sub has the ability to do either. Should I use a Y splitter to both RCA inputs to get that increase, or should I use just the LFE input?
Thoughts 'preciated.
I ask because the Dayton SA-1000 I have for my DIY sub has the ability to do either. Should I use a Y splitter to both RCA inputs to get that increase, or should I use just the LFE input?
Thoughts 'preciated.
"....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
Comments
-
They are for different purposes but RCA can be used for either.
LFE is for dedicated LFE or simulated LFE signal from receiver.
RCA is usually for pre-outs, not necessarily LFE out from receiver.
However, you can split LFE and input into RCA but the input signal will be half so you may not notice any change in volume.
Klipsch RB81, KG3.5, B&W DM602.5, Polk.
Subwoofers: Klipsch RW10, Triad ProSub Bronze. -
Since the amp is mono there will be no benefit splitting the signal. The gain from splitting the input impedance will be defeated when the signals come back together in the input section returning the impedance and any voltage gain back to its prior levels. If you had two discrete output channels with the same signal than yes you would have a 3db gain when using the l/r input.Oh, Listen here mister. We got no way of understandin' this world. But we got as much sense of this bird flyin in the sky. Now there is a lot that bird don't know, but it don't change the fact that the world is happening to him all the same. What I am tryin to say is, is that the course of your life, well its changing, and you don't even see it- Forest Bondurant
-
Ok. I figured that might be the case. Not gonna worry about it then. Thanks."....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
-
LFE bypasses the crossover but not sure if it makes a difference in sound vs. just turning the crossover to the highest freq.2.2 Office Setup | LG 29UB55 21:9 UltraWide | HP Probook 630 G8 | Dell Latitude | Cabasse Stream Amp 100 | Boston Acoustics VS 240 | AUDIORAX Desk Stands | Mirage Omni S8 sub1 | Mirage Omni S8 Sub2
-
jeremymarcinko wrote: »Since the amp is mono there will be no benefit splitting the signal.
I have not experimented with going straight to the amp but with a Klipsch R-115SW and wireless module, I have to use a splitter. If I just feed it with one RCA it doesn't sound right and is not loud at all, even if I crank the gain up. I have to split it and feed both left and right RCA's then it wakes up. So, generally speaking I'm not sure this is correct but maybe they use a stereo amp that's bridged, I'm not sure. -
LFE bypasses the crossover but not sure if it makes a difference in sound vs. just turning the crossover to the highest freq.
The crossover won't be used but for possibly the PEQ, but I will have a MIniDSP in front to EQ so that isn't an issue.
"....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
