Lab Gruppen PLM 12K44 SP 12,000W 4-Channel Amplifier with Lake DSP and Network (speakON) - PLM12K44/SP

Product Overview

The Lab Gruppen PLM 12K44 SP is a 12,000W four-channel touring power amplifier with integrated Lake Digital Signal Processing, Dante/AES67 digital audio networking, and Neutrik speakON twist-lock speaker outputs. Delivering up to 4 x 3,000W across loads from 2 to 16 ohms and 70/100V, it is built for mid-to-large touring systems, main PA arrays, and high-output installation scenarios where the DSP and network management of the PLM+ platform are required. The speakON NL8 and NL4 output connectors make it the standard choice for touring rigs requiring fast, secure speaker cable connections.

Product Description

The Lab Gruppen PLM 12K44 SP is the 12,000W member of the PLM+ series, inheriting the full feature set of the line in a unit optimized for mid-scale touring and high-power installation deployments. Its Class-TD output stage delivers 3,000W per channel at 2 ohms with all four channels driven, with the Rational Power Management (RPM) system able to redistribute available power between channels when not all outputs are loaded equally — a practical advantage when running mixed speaker configurations. The Lake Controller 6.3 DSP platform provides the same comprehensive loudspeaker management as the flagship PLM 20K44, including FIR linear-phase crossovers up to slopes exceeding 180 dB/octave, MESA EQ asymmetric filters, parametric EQ, delay, and limiting, all configurable via the Lake Controller software on a standard Windows PC or tablet. Dante and AES67 networking via dual etherCON ports allows full integration with digital audio networks built around Dante-compatible consoles, stage boxes, and processors. Four balanced XLR analog inputs and AES3 digital inputs cover both analog and digital source connections. Speaker outputs are provided as one NL8 and two NL4 speakON connectors on the rear panel. Comprehensive circuit protection including DC protection, short-circuit protection, and thermal limiting ensures reliable operation across the temperature ranges encountered in touring and fixed-installation environments. At 2 RU, the PLM 12K44 SP fits standard equipment racks and ships ready to deploy with power cord and rack support brackets included.

Key Features

• 12,000W Total Output Power — Four channels at 3,000W each (2 ohms), supporting 2, 4, 8, 16 ohm and 70/100V loads.
• Rational Power Management (RPM) — Redistributes available power between channels dynamically to optimize performance with mixed speaker loads.
• Lake Digital Signal Processing — Full loudspeaker management with FIR linear-phase crossovers, MESA EQ, parametric EQ, delay, and limiting via Lake Controller 6.3.
• Dante and AES67 Networking — Dual redundant etherCON ports for IP audio routing in any Dante-based system.
• speakON Output Connectors — One NL8 and two NL4 Neutrik speakON outputs for secure touring speaker connections.
• 4-In / 4-Out Signal Architecture — Four balanced XLR analog inputs plus two AES3 digital inputs.
• Class-TD Amplifier Topology — Combines Class-B sonic characteristics with Class-D power efficiency.
• Voltage Peak Limiter (VPL) — Per-channel adjustable output limiter for loudspeaker protection and headroom optimization.
• Comprehensive Circuit Protection — DC, short-circuit, thermal, and inrush protection for touring reliability.
• 2 RU Rack-Mount Chassis — Ships with power cord and rear rack support brackets.

Typical Applications

• Auditorium
• House of worship
• Multi-purpose room
• Broadcast studio

Technical Specifications

Frequently Asked Questions

Q: What is Rational Power Management (RPM) and how does it benefit a mixed speaker system?

A: RPM is a Lab Gruppen feature that allows the amplifier to redistribute its total available power across the four output channels based on actual load demand. For example, if two channels are driving subwoofers and two are driving high-frequency drivers with different power requirements, RPM ensures the available power budget is allocated where it is needed rather than being wasted on underloaded channels.

Q: What is the difference between the PLM 12K44 SP and the PLM 12K44 BP?

A: Both models share identical electronics and DSP. The SP uses Neutrik speakON NL8 and NL4 twist-lock connectors for speaker outputs, preferred in touring applications. The BP uses binding post terminals, preferred in fixed-installation environments or rigs using spade-lug or bare-wire terminations.

Q: Is the PLM 12K44 SP compatible with Dante networks?

A: Yes. Dual redundant etherCON Dante ports with AES67 support are included. The amplifier integrates directly into any Dante-enabled audio system and is managed via Dante Controller and Lake Controller software.

Q: Can the PLM 12K44 SP run 70V or 100V distributed speaker systems?

A: Yes. The amplifier supports 70V and 100V high-impedance operation on all four channels, making it suitable for distributed speaker installations as well as low-impedance touring PA systems.

Q: What software is required to program the Lake DSP?

A: Lake Controller 6.3 software is used for all DSP configuration, including crossovers, EQ, delay, and preset management. It runs on Windows and connects to the amplifier over the Ethernet network.

Q: How much rack space does the PLM 12K44 SP occupy?

A: The unit occupies 2 rack units (2 RU) in a standard 19-inch rack. Rear rack support brackets are included.

Q: What is included in the box?

A: The PLM 12K44 SP ships with a power cord and rear rack support brackets. Lake Controller software is available as a free download from Lab Gruppen's support portal.