We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.
Estimated arrival at B&H is 7-14 days. Your order will only be charged at time of shipment.
International orders*The LSR4312SP is a 12" powered subwoofer, part of the LSR4300 line from JBL. Ideal for applications in professional music, broadcasting, and post production, the LSR4312SP provides accurate and precise low-end reproduction all the way down to 27Hz. Powered by a 450W amplifier, the subwoofer has plenty of power to kick out anything you throw at it. In addition to offering high-quality JBL audio, the LSR4312SP also includes several advanced technologies including Room Mode Correction, HiQnet networking, and a Linear Spatial Reference design.
Room Mode Correction (RMC) technology analyzes the frequency response of the room and precisely inserts filters to compensate for low frequency inaccuracies. This ensures that signals arrive at mix position with the intended frequency response, eliminating guesswork and creating reliable mixes in any environment. The process also automatically adjusts all speaker levels and sets correct polarity, providing balanced mixes.
HiQnet networking allows up to eight monitors and two subwoofers to be connected in a system, as well as providing full system control via front panel, wireless remote, or from a computer. The Linear Spatial Reference design ensures an accurate in-room response in a variety of spaces, so your audio sounds great, no matter what room you're in.
Note! While compatible with other speakers, some advanced features, such as RMC calibration, are only available if the LSR4312SP is networked to one or more LSR4300 series monitors.
| Driver | 12" (305mm) Neodymium Self-Shielded |
| Amplifier | 450W (Sine) |
| Crossover | 50, 80, 120Hz Selectable - Fourth Order Linkwitz-Riley |
| Frequency Range | 27 - 250Hz |
| Maximum Sound Pressure Level (SPL) | 116dB @ 1 meter (Continuous) |
| Connectors |
6 x Analog XLR Inputs 6 x Analog XLR Outputs 2 x 1/4" (6.3mm) Inputs 1 x Digital AES/EBU XLR Input 1 x Digital AES/EBU XLR Output 1 x S/PDIF RCA Input 1 x S/PDIF RCA Output 2 x CAT5 Connectors 1 x USB Connector 1 x AC Power In |
| Input Impedance | 10 k ohms |
| Controls and Indicators |
Rear Panel: 1 x Input Sensitivity Switch 1 x +10dB LFE Gain Switch 2 x Speaker ID Switches 3 x Digital In Assign Switches 1 x Polarity Switch 5 x LEDs for Analog, S/PDIF, AES/EBU, CH A, and CH B Input Front Panel: 1 x Power Button 1 x Solo Button 1 x RMC Button 1 x Bass Management On/Off Button 1 x Bass Management Crossover Button 1 x LFE Filter Button 1 x Sub Level Button 1 x Input Button 1 x Pair of +/- Buttons 1 x Level Meter Display 1 x Power Indicator |
| Shielded | Self-Shielded Driver |
| Dimensions (HxWxD) | 19.75 x 16 x 19.25" (502 x 406 x 489 mm) |
| Weight | 66 lbs (29.5 kg) |