Orion Car Audio HP-4600 High-PassCrossover, Input Gain, Adjusting Intelli-Bass, Enclosure Type

High-Pass Crossover

When the switch is to the left (FULL position), the high-pass crossover is bypassed. When the switch is in the middle (HIGH position), the high-pass crossover is active. The high-pass crossover is continuously variable from 50Hz to 500Hz.

Input Gain

The Orion amplifiers have gain adjustments with an input sensitivity range from 200mV up to 5V on the RCA inputs and 1V to 10 on the high-level inputs. This allows easy integration from any source unit either with RCA outputs or speaker outputs. Refer to the Testing the System and the Adjusting the Sound of the System sections for detailed instructions on set- ting up the level controls.

Adjusting Intelli-Bass

Intelli-Bass on the rear channels maximizes the performance of a subwoofer and allows for continuous adjustment of low frequency boost on the rear channels. Intelli-Bass can be adjusted from 0dB to 18dB of boost centered at 45Hz. Initially the Q is very low (wide). As Intelli-Bass is added, the Q rises (narrows). This allows the amplifier to overcome acoustic deficiencies in your vehicle. The type of enclosure used, the sub-woofer's excursion capabil- ity, personal preference, and attitude determine acceptable boost levels.

WARNING! Exercise caution when setting Intelli-Bass. Maximum boost can potentially cause woofer damage due to overexcursion.

Enclosure Type		Boost Levels
	0dB	+3dB	+6dB	+10dB
Infinite Baffle	Tune above	High X-Max	Not	Not
	Fs of woofer	Drivers--Tune	Recommended Recommended
		above Fs of
		woofer
Sealed	Tune above	Tune above	High X-Max	Not
	Fs of woofer	Fs of woofer	Drivers--Tune	Recommended
			above Fs of
			woofer
Vented	Tune to port	Tune to port	Tune to port	High X-Max
	frequency	frequency	frequency	Drivers--Tune to
				port frequency
Sealed Band-pass	Tune above	Tune above	High X-Max	Not
	Fs of woofer	Fs of woofer	Drivers--Tune	Recommended
			above Fs of
			woofer
Vented Band-pass	Tune to port	Tune to port	Tune to port	High X-Max
	frequency	frequency	frequency	Drivers--Tune to
				port frequency
Aperiodic	Set crossover	Set crossover	Set crossover	Not
	to Fs of	to Fs of	to Fs of	Recommended
	woofer	woofer	woofer

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