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[FSBMMPXTUIFVTFSUPTFMFDUUIFDFOUFS | 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 PGUIFCPPTUCBOE5IFiQ" | allows the amplifier to produce its optimum | ||||||
QBSBNFUSJDTJOHMFCBOEFRVBMJ[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 |
|
| 5IFiCenter FreqwDPOUSPMTFMFDUTUIFDFOUFS | 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 | BSBOHFPG)[*GZPVXPVMEMJLFUP | |||
|
|
|
|
|
|
| |||
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 | |||||
|
|
| |||||||
|
|
|
|
|
|
|
| QBHF PGUIJTNBOVBM5IFiBoostwDPOUSPM |
|
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 |
| PGCPPTUJTBWBJMBCMF5IFiRemote Bass Portw | Unlike conventional amplifiers that require | |||||
WBSJBCMFDVUPGGGSFRVFODZCFUXFFO)[ |
| allows the connection of an optional remote | a specific impedance to produce optimum | |||||
8IFOTFUBUGSFRVFODJFTMPXFSUIBO)[JU |
| boost knob (the | power, the | |||||
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 |
| DPOUSPMUBLFTUIFQMBDFPGUIFiBoostwLOPCPO | configurations that achieve final nominal | |||||
TFUBUGSFRVFODJFTIJHIFSUIBU)[UIFSFXJMM |
| the amplifier when connected and bypasses the | impedances between | |||||
be an audible effect, but one which may be |
| iBoostwDPOUSPMPOUIFBNQMJGJFS | 1.5 – 4Ω (without sacrificing power output or | |||||
desirable for SPL competition purposes or curve |
|
|
|
| sound quality). | |||
shaping of a |
|
|
|
| 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[BUJPODIPPTJOHUIFTUBHFNPTUBQQSPQSJBUF | ||||||
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 | 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 |
|
|
| ||||
DPNQMFUFMZEFGFBUFECZTFMFDUJOHUIFiOffw | 18). If you are using an external active |
|
|
| ||||
! | I M P O RTA N T |
| ||||||
QPTJUJPOPOUIFiModewTXJUDI5IJTCZQBTTFT | 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
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.
%POPUDIBTTJTHSPVOEBOZTQFBLFSTDPOOFDUFE
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 |