The best setting is usually as high as possible without distortion. The 'gain' or level control allows you to match the amps input to your head units subwoofer output. If the bass sounds out of phase, turn the phase shift on, otherwise leave it off. The thump of the bass comes just a little sooner or later than expected. Because of the additional wiring required for the subs, the signal to them is sometimes slightly delayed causing the bass to be 'out-of-sync' with the rest of the music. The phase shift should be set to the position that best synchronizes the bass with the music. For a ported enclosure, lower is probably better. Typical crossover frequencies for subwoofers are 60Hz, 80Hz and 100Hz. Similarily, the low pass sends all frequencies below the setting to the subs, (other than those blocked by the subsonic filter) and is commonly referred to as the 'crossover' frequency. If your enclosure is tuned for 35Hz, then the subsonic should be close to maximum. So, it should be set to about the same frequency that your enclosure is tuned for or just a little lower. The SubSonic setting filters out frequencies below the threshold of hearing allowing the amp to put more power into the frequencies that can be heard. The settings you have will not break anything and may sound OK.īut they may not be optimum for getting the best bass from your system. If there's still no output from the unit after checking all of the wiring, either the unit is defective, it's not getting an input from the receiver, or the sub(s) are defective. Plug in the remote level control and make sure that it adjusts the bass up and down. Adjust the other controls for best sound. Now adjust the INPUT LEVEL to the left just until you begin to hear distortion, then turn it back right just a little. Leave the remote level control disconnected.Īfter you've checked all wiring and initially set the switches and controls, turn the receiver on to about 3/4 volume. INPUT LEVEL, SUBSONIC FILTER, BASS BOOST, and LOW PASS FILTER midrange. Initially set the controls like this: MASTER/SLAVE switch in MASTER position (left). Then check all of your wiring, especially the RCA output cables. First make sure that the amp power light (green LED) is coming on when you turn on the receiver and that the protection light (red LED) stays off. If you have no sound at all, I'd suspect that something is incorrectly connected or there is no input to the amp. It is the first rotary control just to the right of the input jacks. It has an 'Input Level' adjustment which is used to match the output from your head unit preamp output to the amp. The Boss OL5KD does not have a volume control. NOTE: If you changed the phasing value, power down the printer, remove the shuttle cover, and write the new phase value on Press Start to put the printer into READY mode. Press Scroll ↑ + Scroll ↓ to lock the Enter key.ġ7. Printing stops, and the printer automatically enters the current phase When the print pattern is acceptable, press Stop. Press Scroll ↑ or Scroll ↓ to increase or decrease the phasing index, then press Enter to activate the value as it prints.Ĭontinue to increase or decrease the phasing index until the pattern of H’s appears.ġ5. The phasing index (followed by an asterisk) will move up to the top line of the display.ġ4. “HAMMER PHASE VALUE” and the bottom line will show the current phasing index number.ġ3. Press Scroll ↑ or Scroll ↓ until “SERVICE / HAMMER PHASE VALUE” is on the display.ġ2. The printer begins printing all H’s, each line preceded by the phasing index number.ġ1. “PRINTER MECHANISM TESTS / HAMMER PHASING” is on the display.ĩ. The display will show “SERVICE / PRINTER MECHANISM TESTS”, the first menu item. (Press all four keys at the same time.)ħ. Press Scroll ↑ + Scroll ↓ + Return + Enter to enter the CE Tests menu. Press Scroll ↑ + Scroll ↓ to unlock the Enter key.Ħ. Press Stop to put the printer into NOT READY mode.ĥ. Power on the printer and set top of form.Ĥ. If the value is changed when not printing, the printer will return to its default phasingģ. IMPORTANT The printer must be printing the Phase pattern of “H’s” when the Phasing Value is changed, or the New Phasing Value will not be written into NVRAM.

Subsonic filter on amp