Power a world-class sound system with the Lab.Gruppen PLM 8K44 SP, a 2 RU, four-channel 8000W amplifier that can drive professional-grade sound systems of any size. The PLM 8K44 combines four channels of extremely powerful amplification with unrivalled signal processing and audio management. With an extended 4-in, 4-out configuration together with the powerful 6.3 Lake Controller software, plus industry-standard Dante networking, the PLM 8K44 sets the benchmark for powered loudspeaker management systems.

At the core of the system concept is the total integration of all devices, including networking, audio I/O, signal processing, amplifiers, power supply, and connected mains supply, allowing complete control and monitoring of the entire platform, resulting in unique operational benefits.

Four-Channel Amplifier: 4 x 2000W    70/100V and 2, 4, 8, 16 Ohms    Class-TD Amplifier    Lake Digital Signal Processing    Comprehensive Circuit Protection    Selectable Gain + Voltage Peak Limiter    Dante and AES67 Networking Support    NL8 and Two NL4 speakON Outputs    Includes Power Cord    Includes Rear Rack Support Brackets

• 8000W amplifier with 4 flexible output channels and up to 3800W channel output for touring applications
• Lake Digital signal processing for unparalleled loudspeaker management and system control
• Integrated 8x8 channels of dual redundant Dante digital audio networking with AES67 support
• Proven and reliable Class-TD output stage with proprietary Intercooler high-efficiency cooling system
• Rational Power Management (RPM) provides total flexibility to allocate available power across all 4 output channels
• Best-in-class Power Factor Correction (PFC) with Current Draw Modelling reduces running costs and minimizes environmental impact
• Undervoltage Limiting (UVL) for continued operation during severe mains supply voltage drops
• Dedicated onboard surveillance and load monitoring for complete peace of mind
• Redundant audio inputs and onboard system surveillance for full-system security
• Backlit, white-on-black front-panel display and menu navigation buttons
• 100 user presets for simple and efficient system configuration and setup
• 3 front-to-rear airflow fans with temperature control for optimal speed and reduced noise
• 4 "Lake Class" analog input channels with Iso-Float ground isolation
• 4 input channels of AES/EBU (AES3) digital audio supporting all standard sample rates up to 192 kHz with 24-bit resolution
• 2 Neutrik etherCON RJ-45 ports provide dual redundant Dante interfaces and remote configuration via Lake Controller and Dante Controller software
• Balanced analog and AES/EBU audio inputs on Neutrik XLR connectors
• 1 NLT8 and 2 NLT4 Neutrik speakON output connectors
• Detachable Neutrik powerCON cable rated at 250 V / 32 A
• Removable dust filter grilles for increased air circulation
• Rugged 2 RU rackmount chassis for durability in touring applications

• The PLM 8K44 features the legendary power of exclusive Lake Processing algorithms, incorporating four full-featured Lake modules with four discrete channels of audio throughput input to output. Audio signals are selectable from four channels of analog (with Iso-Float ground isolation), four channels via AES3 digital inputs and eight dual redundant Dante networked digital inputs. Input signals are individually selectable for each channel, with programmable failover to a lower prioritized input.
• The full-featured, onboard Lake Processor includes group control with Raised Cosine MESA EQ asymmetric filters to match the responses of any loudspeaker system. LimiterMax peak and RMS limiters set the industry standard for loudspeaker protection and sonic transparency.
• The included Lake Controller software provides a unified interface for control of Lake functions and for comprehensive monitoring of both amplifier status and connected loudspeaker loads. Optimized for a wireless tablet PC, Lake Controller is easy and intuitive to operate, with the “feel” of real-time analog faders and controls. Lake Controller also features seamless integration with third-party, real-time sound system measurement, optimization, and control software packages. Users can measure spectrum and transfer function and adjust system EQ at the same time, using the same user interface.
• Lake Processing offers classical crossovers (selectable up to 48 dB per octave) as well as linear-phase crossovers capable of slopes exceeding 180 dB per octave for greater control to limit lobing and off-axis cancellation.

• On top of the outstanding performance users have come to expect from a PLM, the 8K44 also features Rational Power Management (RPM), a proprietary Lab Gruppen technology that provides designers and systems techs with unprecedented freedom to allocate the available output power of each amplifier channel for optimum performance with specific load conditions. For the first time, RPM provides true flexibility in allocating available power across the four output channels. Each channel of the PLM 8K44 may be tailored to meet the requirements of the connected load, and any power not used for that channel may be allocated for use on other channels.
• RPM helps to avoid amplifier over-specification, or bridging of adjacent channels in order to meet minimum demands on one power-hungry load, which would otherwise result in a loss of channel count. RPM technology also enables the user to minimize equipment costs, reduce rack space and improve long-term energy efficiency—all achievable without compromising sonic performance. Rational Power Management incorporates features that safeguard the defined power output of one or more specified channels. From within the CAFÉ software, it allows the desired power demand to be calculated for the different loads in several different ways. RPM then analyses the desired power in relation to the channel and device constraints and guides the system designer towards the most effective way of powering the PA.
• Rational Power Management results in real-world savings, both immediate and long-term. In many cases, fewer amplifiers—or lower cost models—may be specified while still fulfilling all power requirements. It also allows better mains management, avoiding over-specification of mains distribution, cooling, and UPS (where required). Finally, the overall gain in efficiency in larger systems will minimize current consumption and reduce operation costs—a “green bonus” for the system owner.

• CAFÉ (Configuring Amplifiers for the Environment) is a software suite that allows the PLM 8K44 to be easily configured and monitored in the most efficient manner possible. In addition to providing comprehensive system surveillance and configuration of RPM and other amplifier features such as ISVPL and Breaker Emulation Limiter (BEL), CAFÉ also includes valuable help to save the environment.
• In combination with the RPM configuration CAFÉ can accurately predict estimations of average mains current draw and generated heat, and utilizing the PLM+ Series’ innovative power supply technologies in combination with BEL, the mains draw can be safeguarded to a predicted level. The end result is precise mains management and thermal control, which allows more accurate (rather than over-specified) provision of mains distribution, cabling, and cooling. This technology suite reduces lifetime running costs and minimizes environmental impact. It also reduces demands on UPS systems.

Related Questions and Answers

Q: 1. Can this receiver output both analog and digital sources to Zone2 Pre out for playing on external powered speakers? This question is not about subwoofers. Other receivers can output to their analog Pre Outs only analog sources connected to receiver. No HDMI or optical audio can be played.

A: The PRE Out on this A/V receiver would give you he same source as what is selected for the surround output. This unit does not have a second zone.

Q: 2. Can I connect a graphic equalizer and adjust the sound?

A: You would need to go from your source device into the graphic EQ and then into the Marantz receiver to be able to do that.

Q: 3. What type of speaker can be used with this inside a house

A: Just about anything from ceiling mounted mutli zone systems to drive high power requirement loads such as large subwoofers or transducer arrays in home theater applications.

Q: 4. hello, what diferences to 1509?

A: These receivers are nearly identical in every physical aspect and feature. Only differences: Marantz Slimline NR1510 Marantz Slimline NR1509 HDMI Support & Auto LipSync: eARC ✔ HDCP Vers: 2.3 2.2 Web Control: ✔ No Bluetooth Vers: 4.1 3.0 + EDR

Q: 5. Do Audyssey settings apply to audio out signal at Pre Out? Specifically, the dynamic volume?

A: The Audyssey apply to the Dynamic EQ & Dynamic Volume.

Q: 6. Does this provide plenty of power to 250 or 600 ohms power without the feeling that I need a higher power amp?

A: The specs on the ART HeadAmp 6 show 150mw with headphones of 8 or 600 ohms. It also states much higher power (500mw) with 32 ohm headphones. One must also consider: 1- the headphone sensitivity specification, which will tell you how loud a headphone is, based on the power applied. 2- the transients in whatever it is you are listening to; large transients requires much more power. see below article of explanation: https://www.audeze.com/blogs/technology-and-innovation/sensitivity-impedance-and-amplifier-power

Q: 7. Is it HDMI 2.1 or 2.0b?

A: This receiver offers HDMI 2.0. The Denon AVR- X1600H and AVR- X2600H, meanwhile, are full-sized, 7.2-channel AVRs with 80 and 95wpc output, respectively. Both also support Dolby Atmos Height Virtualization, and boast key features of the impending HDMI 2.1 spec (including eARC and ALLM).

Q: 8. Does this unit have aptx and aptxLL? Pertains to sound delay of movies.

A: No, aptx is not supported. While aptx and aptx low latency pertain to sound delay, this only pertains to Bluetooth transmission. Bluetooth is not recommended for video sources, hard-wired audio and video connections would be best and would work with lower latency than even aptXLL can provide.

Q: 9. Looking for a pair of speakers to use with V-Drums AND synths. Would these be a good fit? Extra features compared to the PM-200.

A: Yes, the Roland KC-200 4-Channel Mixing Keyboard Amplifier can be used with V-Drums and synthesizers, as well as with a microphone.

Q: 10. What is the maximum amount of weight the device wilB support before it begins to slip around the ball ?

A: This is a very strong system, it hold all size iPads with no problem. You will be surprised on how strong this is.