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Lab Gruppen PLM 20000Q


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Limited warranty

Pre-owned Lab Gruppen PLM 20000Q Amplifier in Excellent Condition

The power amplifier platform of the PLM 20000Q integrates several new developments to maintain reliable, sustained output at unprecedented power levels. The Regulated Switch Mode Power Supply (R.SMPS) is a new universal design that connects to any mains supply in the world. (Operating range is 100 V - 265 V, but new Under Voltage Limiting extends operation down to 65 V with reduced output power.) The design also incorporates power factor correction (PFC) to reduce peak current draw from the mains.


Load Verification and Continuous Performance Monitoring

The PLM 20000Q includes a revolutionary set of tools for accurate load verification and real-time performance monitoring. The key to both features is LoadLibrary, a comprehensive database that provides unique “Fingerprints” (load characteristics) for each loudspeaker model in the system.


Lake Processing

The PLM 20000Q contains two Lake Processing modules, each offering precise settings for gain, delay, crossover slope, equalization, and limiting. Exclusive Lake Processing algorithms are included for Raised Cosine Equalization, linear phase crossovers, LimiterMax loudspeaker protection, and Iso-Float ground isolation. Raised Cosine Equalization is the foundation for the Lake Mesa EQ and the Ideal Graphic EQ. Mesa EQ offers asymmetric filtering to match the asymmetric responses of many loudspeaker systems; the Ideal Graphic EQ offers true sum-to-flat response, so the adjustments provide uniform boost and cut along with greater selectivity.


Lake Controller Software

Lake Controller software provides a unified interface for control and monitoring of all functions of the PLM 20000Q. In addition to controlling all parameters of standard Lake Processing, new versions also provide control and monitoring of exclusive PLM features: digital input gain and attenuation, and load verification and performance monitoring via LoadSmart and SpeakerSafe. The Lake Controller software is optimized for a wireless Tablet PC. The same Lake Controller interface can be used to operate Dolby Lake Processors, Lake Contour, and Lake Mesa Quad EQ processors as part of a unified system.


Dante Digital Audio Network

PLM Series Powered Loudspeaker Management systems are equipped with Dante, a self-configuring digital audio networking solution based on the newest developments in networking technology, Dante provides reliable, sample accurate audio distribution over Ethernet with extremely low latency. Dante incorporates Zen™, an automatic device discovery and system configuration protocol which enables PLM Series products and other Dante-enabled products to find each other on the network and configure themselves.



Number of input channels


Number of output channels


Peak total output all channels driven

20000 W

Peak output voltage per channel

194 V

Max output current per channel

67 A peak

Max output power (all channels driven)

16 ohms

1150 W

8 ohms

2300 W

4 ohms

4400 W 1

2 ohms

4800 W 1

All channels driven into optimal impedance interval

> 5000 W into 2.2 - 3.3 ohms

Max output power bridged

8 ohms

8800 W

4 ohms

9600 W

Bridged into optimal impedance interval

> 10000 W into 4.4 – 6.6 ohms

Device presets

Local memory locations for the settings of the product



THD + N 20 Hz - 20 kHz for 1 W

< 0.05 %

THD + N at 1 kHz and 1 dB below clipping

< 0.04 %

Dynamic range with digital inputs (for all supported sample rates)

>114 dB

Dynamic range with analog inputs

>110 dB

Frequency response (1 W into 8 Ohm, 20 Hz - 20 kHz)

+/- 0.05 dB

Common Mode Rejection (CMR)

>74 dB, 20 Hz to 20 kHz

Internal Sample Rate / Data path

96 kHz / 32 bit floating point

Product propagation delay (straight path analog server input -> amp)

1.61 ms

Product propagation delay AES 96 kHz / analog input

1.68 ms

Sample Rate Converters

THD + Noise

0.00003 %, 20 Hz - 20 kHz, unweighted

Analog to Digital inputs


2 inputs x 2 link

Input sensitivity settings

+12 or +26 dBu

THD + Noise

0.00022 %, typical at 1 kHz unweighted at +26 dBu headroom setting

THD + Noise

0.00033 %, typical at 20 Hz and 20 kHz unweighted at +26 dBu headroom setting

Gain, Sensitivity and Limiters

Adjustable Inter-Sample Voltage Peak Limiter (ISVPL)

17.8 - 194 V, step size 0.1 V

Current Peak Limiter < 300 ms

67 A peak

Current Average Limiter (CAL) > 300 ms

33 Arms

MaxRMS (rms voltage limiter)


MaxPeak (peak voltage limiter)


Output attenuator

-Inf to 0 dB, step size 0.25 dB

AES3/EBU (sample rate converters available as desired)

Support redundant paths


Flexible topology


Supported sample rates

48, 96 kHz

Back panel Interface

AES / EBU / I/O (input + link)

2 x 3-pin XLR

Analog, 2-channel I/O (input + link)

4 x 3-pin XLR, electronically balanced

Output connectors

Neutrik speakON (1 x NLT8, 2 x NLT4) or 4 Binding Posts (pairs)

Auto 10/100, Auto Uplink

2 x RJ45 etherCON

Control and monitoring interface

Via Ethernet for Lake Controller software, or DLM (the 3rd party protocol)

Detachable mains cord

Neutrik PowerCon rated at 250V/32A


Three fans, front-rear airflow, temperature controlled speed

Front-panel user interface


2.5 inch, daylight readable LCD

Fault/Warning/Limit/Clip indicators

RGB LEDs and detailed fault description on display

Mute and soft function buttons

8 provided

Standby Power button


Meter button

Toggles through meter views


Provides a menu driven interface for full function front panel control

Rotary Encoder


Exit Button

Provides a “back” function


Operating voltage

70-265 V AC

Soft start / Inrush power

Yes/ Max 8 A

Power Average Limiter (PAL)


Power Factor Correction (PFC)


Breaker Emulation Limiter (BEL)

Yes, selectable breaker profile

Under Voltage Limiter (UVL)



Rack rail to rear panel

W: 483 mm (19"), H: 88 mm (2 U), D: 424 mm (16")


17 kg


(37 lbs)



Black painted steel chassis with black painted steel / aluminum front



CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC


Warranty Information

Thank you for your interest in the products and services of Tourpro, Inc. This Limited Warranty applies to physical goods, and only for physical goods, purchased from TourPro, Inc. (the "Physical Goods").

TourPro, Inc. ,,, and offers a 48 hour period, upon receipt, to inspect items for incorrect shipments or defective items. If an item is found to be defective, please contact TourPro, Inc. to resolve to issue as soon as possible. If, during the 72 hour period, an item is found to be defective, TourPro, Inc. will offer to ship replacement parts/items for product repair.

This Limited Warranty extends to the original purchaser only and is not transferable.

The all products listed for warranty, other than the 48 hour warranty listed above, may only be returned, repaired or replaced due to defect through the manufacturer directly, as per the manufacturer's policies.

What does this limited warranty cover?

This Limited Warranty covers any defects in material or workmanship under normal use during the Warranty Period.

What will we do to correct problems?

TourPro, Inc. will:

Tourpro, Inc., and offers a 72 hour period, upon receipt, to inspect items for incorrect shipments or defective items. If an item is found to be defective, please contact TourPro, Inc. to resolve to issue as soon as possible. If, during the 72 hour period, an item is found to be defective, TourPro, Inc. will offer to ship items for product repair.

How long does the coverage last?

The Warranty Period for Physical Goods purchased from TourPro, Inc. is 48 hours from the date of product delivery.

A replacement Physical Good or part assumes the remaining warranty of the original Physical Good or 2 Days from the date of replacement or repair, whichever is longer.

What does this limited warranty not cover?

This Limited Warranty does not cover any problem that is caused by:

Shipping damage; all shipping damage issues will be handled by company, or companies, who shipped the product as agreed to by TourPro, Inc. and/or customer of product.

Conditions, malfunctions or damage not resulting from defects in material or workmanship Conditions, malfunctions or damage resulting from negligence, improper maintenance or modification- Damaged or destroyed by natural causes including but not limited to lightning, flood, or other natural disaster- Theft or loss of the Physical Goods This Limited Warranty does not cover any shipping charges, handling charges, gift wrap fees or taxes. You are responsible for and must prepay all shipping charges.

This Limited Warranty is void if the Physical Goods are returned with removed, damaged or tampered labels or any alterations.

What do you have to do?

To obtain warranty service, you must obtain a Return Merchant Authorization (RMA) number and instructions on how to return a product by contacting us.

Deliver the Physical Goods, in either its original packaging, including any accessories or documents that shipped with the Physical Goods to the address specified by TourPro, Inc. .

To obtain the Return Merchant Authorization (RMA) number, you can contact us by any of the following contact methods:

By email:

Other Details

Limited warranty

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