So, I know the pillows have a pinpoint or discreet affect. Before the pillows it played best with Bass set to -4 and Treble set to +2. That particular record with the two pillows tacked to the wall play best on the Luxman with the 70Hz pushbutton implemented. It can be muddy, it can be sharp, it can be fuzzy, vocals can move rear, etc. I have a couple more records that behave the same, but the D&B album is the most variable. Every past adjustment in system configuration affects the play of that record (room treatment, speaker location, stylus tracking force). One such record is "To Bonnie From Delaney" by Delaney and Bonnie & Friends.
When I do that, I feel the need to turn the treble to +1 or +2. To get the same results using tone controls, I need to turn the bass on the Luxman to -3 or -4. On some 70s rock recordings, I've noticed that a dark thumping bass can be remedied to a melodic bass in the same region by way of the low cut 70Hz pushbutton. I don’t feel the need to use these filters with any other type of music. Some people claim it is so inaudible that results vary by userĪm I correct about all of this? Using these two filters seems to work great with rock & roll music especially with horns, a strong kick drum and deep bass playing. Subsonic (15Hz) - selecting this will eliminate any rumble noise from the turntable but not much else. Super high notes are softened or eliminated It does not modify the audio signal and redu- ces the woofer range. Ideally you’ll have only pure, clean bass from the subwoofer and hear music. The subsonic filter eliminates the frequencies under. Once you’ve set it, adjust slowly and listen for what sounds the best to you. High cut 7kHz - This seems to filter out high shrieking tones across the board. A good rule of thumb for a home stereo subwoofer low pass filter (LPF) setting is 70 to 80Hz. I seems to work better than activating bass control with tone Say you are tuned to 42 Hz, a good starting point for. Activating it works like an across the board correction. A port generally has the most effect on excursion 1/3 octave to either direction of the tuning frequency.
Low cut 70Hz - It seems to filters out very low bass that interferes with tonality of bass. These two switches operate independently from “tone defeat”
#SUBSONIC FILTER FREQUENCY MANUAL#
The service manual is available, but it does not address in any detail, the following assumptions of mine: I cannot find the user manual anywhere on the web. Low-pass filters will allow frequencies below a pre-determined cutoff frequency. First, you will need to determine the type of subsonic filter to be used, such as low-pass, band-pass, or high-pass. I have a vintage Luxman L400 integrated amplifier. Setting up a subsonic filter requires you to determine the type of filter being used, the frequencies that need to be filtered, and the power rating.
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