JL Audio 1000/1v2 owner manual Advanced Bass Control Section Subwoofer Output

ADVANCED BASS CONTROL SECTION									SUBWOOFER OUTPUT
The 1000/1v2 includes a versatile bass								2) Parametric Bass Equalizer: The parametric	The 1000/1v2 employs JL Audio’s exclusive
processing section consisting of two								FRVBMJ[FS BMMPXT UIF VTFS UP TFMFDU UIF DFOUFS	Regulated, Intelligent Power Supply (R.I.P.S.)
primary components: a fully variable,								frequency of the boost band as well as the	design. This sophisticated power supply
24 dB per octave infrasonic filter and a								CBOEXJEUI iQw PG UIF CPPTU CBOE 5IF iQ"	allows the amplifier to produce its optimum
QBSBNFUSJD TJOHMFCBOE FRVBMJ[FS								control selects the bandwidth of the boost	power (1000 watts x 1) over a wide range of
								around the center frequency. Lower numbers	speaker impedances.
Infrasonic Filter		“Q”		Center Freq.		Boost (dB)		pertain to wider bandwidths while higher
	Mode	1.6			45	+10		number pertain to narrower bandwidths.	Subwoofer Output
		1.1	2.7	35	55	+4	+13
		0.7		25	70			5IF iCenter Freqw DPOUSPM TFMFDUT UIF DFOUFS	Output Polarity
	Off On	0.5	4.3	20	80	0	+15	frequency of the boost bandwidth within
	30	Bass EQ							NormalReversed
25	40					Advanced		B SBOHF PG    )[ *G ZPV XPVME MJLF UP
18	50					Bass		select the filter frequency with a higher level
15	60	Off On				Control			MONO OUTPUT ONLY
Infrasonic Freq. (Hz)			Remote Bass Port					of precision, consult Appendix C: Chart A-4
								QBHF  PG UIJT NBOVBM 5IF iBoostw DPOUSPM

determines how much boost (in dB) you are

1) “Infrasonic Filter”: The infrasonic filter is a		adding to the bass signal. A range of 0 - 15dB
24 dB/octave high-pass filter, with a fully		PG CPPTU JT BWBJMBCMF 5IF iRemote Bass Portw		Unlike conventional amplifiers that require
WBSJBCMF DVUPGG GSFRVFODZ CFUXFFO    )[		allows the connection of an optional remote		a specific impedance to produce optimum
8IFO TFU BU GSFRVFODJFT MPXFS UIBO  )[ JU		boost knob (the RBC-1) that can be mounted		power, the R.I.P.S.-equipped 1000/1v2 gives
conserves amplifier power without audibly		in the front of the vehicle. This optional		you the freedom to use a variety of subwoofer
affecting the quality of the sub-bass output. If		DPOUSPM UBLFT UIF QMBDF PG UIF iBoostw LOPC PO		configurations that achieve final nominal
TFU BU GSFRVFODJFT IJHIFS UIBU  )[ UIFSF XJMM		the amplifier when connected and bypasses the		impedances between
be an audible effect, but one which may be		iBoostw DPOUSPM PO UIF BNQMJGJFS		1.5 – 4Ω (without sacrificing power output or
desirable for SPL competition purposes or curve				sound quality).
shaping of a bottom-heavy system. With ported				The operation of the R.I.P.S. circuitry is
		!	I M P O RTA N T
enclosures, the use of the infrasonic filter is				entirely automatic and adjusts itself every time
	The “Advanced Bass Control” section will only
highly recommended to protect the speaker(s)				the amplifier is turned on according to the lowest
from excessive excursion below box tuning.	operate when the amplifier’s filter is activated			impedance present at the speaker load. There are
With sealed enclosures, the use of the filter is	with the “Amp LP Filter” switch in the “12dB”			no user controls to configure. The system
less necessary, but can still help protect the	or “24dB” position. It will not work with this			operates through multiple stages of impedance
speaker system. If you would like to select the	switch in the “Off” position. This is to prevent			PQUJNJ[BUJPO DIPPTJOH UIF TUBHF NPTU BQQSPQSJBUF
infrasonic filter frequency with a higher level of	cascading the processing of multiple amplifiers			to the actual impedance of the speaker(s) you
precision, consult Appendix C: Chart A-3 (page	when configured in a master/Slave			connect to it.
17) of this manual. The infrasonic filter can be	arrangement as shown in Appendix D (page
DPNQMFUFMZ EFGFBUFE CZ TFMFDUJOH UIF iOffw	18). If you are using an external active
				!	I M P O RTA N T
QPTJUJPO PO UIF iModew TXJUDI 5IJT CZQBTTFT	crossover and would like to use the “Advanced
all signal from flowing through the circuit.	Bass Control” features, set the “Amp LP Filter”			If you connect a load higher than 4Ω nominal
	switch on “12dB” and rotate the frequency			to the 1000/1v2, power will drop by half with
	selection knob fully clockwise to the “200 Hz”			every doubling of impedance above 4Ω. If you
	position. This will activate the “LF Boost” and			connect a load lower than 1.5Ω nominal to the
	“Infrasonic Filter” controls without			1000/1v2, the amplifier protection circuitry
	significantly affecting the crossover point			activates a “safe” mode which reduces amplifier
	selected by the external active crossover.			power to protect the circuitry from failure (the
				yellow LED on the top of the amplifier will
				light to indicate that this has happened). See
				page 12 for details.

! I M P O RTA N T

Speaker loads below 1.5Ω nominal are not recommended and may cause the amplifier output to distort excessively.

Speaker connections to the 1000/1v2 are straightforward and take place at the far right of the front panel. You will notice that there are two

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connections. This is to facilitate multiple speaker wiring. The two positive and two negative connections are connected in parallel inside the amplifier. Connecting two speakers, each to one set of positive and negative terminals, will result in a parallel speaker connection. If only connecting one pair of speaker wires, it is not necessary to use both sets of connections.

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will cause the amplifier to go into protection and mute the output.

The 1000/1v2’s speaker connectors are designed to accept 12 AWG – 8 AWG wire.

To connect the speaker wires to the amplifier, first back out the set screws on the top of the amplifier, using the supplied 2.5 mm hex wrench. Strip 1/2 inch (12 mm) of insulation from each wire and insert the bare wire end into the receptacles on the front panel of the amplifier, seating them firmly so that no bare wire is exposed. While holding each wire in place, tighten each set screw firmly, taking care not to strip the head of the screw and making sure that the wire is firmly gripped by the set screw.

! I M P O RTA N T

Do NOT attempt to “bridge” two 1000/1v2’s or combine their output to a single load in any manner. Doing so will damage the amplifier(s).

! I M P O RTA N T

Before reconnecting the battery ground and turning the system on, verify that all control settings on the amplifier are set according to the needs of the system.

10 JL Audio - 1000/1v2 Owner’s Manual 11