Operation Manual
9. Appendix
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PLM 20K44
Level Load
Rated power
per channel
Line Current
Power
Factor
Measured Power (W) Thermal Dissipation
(A) (%) In Out Dissipated BTU/hr kCal/hr
Mains Voltage 100 VAC, 30 A
Standby 0.3 52 17 0 17 58 15
Power on, Idling 2.4 97 235 0 235 802 202
Pink Pseudo
Noise
16 Ω / Ch. 1150 12.1 99 1192 588 604 2061 520
8 Ω / Ch. 2300 22.3 99 2198 1174 1024 3493 881
4 Ω / Ch. 4400 29.2 99 2853 1478 1375 4691 1183
2.67 Ω / Ch. 5000 29.2 99 2862 1399 1463 4991 1259
2 Ω / Ch. 4400 2 9.1 99 2826 1355 1472 5022 1266
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.5 97 236 0 236 807 203
Mains Voltage 120 VAC, 30 A
Standby 0.3 48 17 0 17 58 15
Power on, Idling 2.0 97 227 0 227 775 195
Pink Pseudo
Noise
16 Ω / Ch. 1150 12.0 99 118 0 588 593 2023 510
8 Ω / Ch. 2300 18.4 99 2144 1174 970 3310 835
4 Ω / Ch. 4400 30.0 99 3457 1896 1561 5326 1343
2.67 Ω / Ch. 5000 29.5 99 3439 1752 1687 5756 1451
2 Ω / Ch. 4400 29.9 99 3495 1665 1830 6245 1575
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.0 97 232 0 232 790 199
Mains Voltage 208 VAC, 17.3 A
Standby 0.3 27 18 0 18 60 15
Power on, Idling 1.2 92 222 0 222 757 191
Pink Pseudo
Noise
16 Ω / Ch. 1150 5.7 99 1151 588 564 1923 485
8 Ω / Ch. 2300 10.2 99 2055 1174 881 3005 758
4 Ω / Ch. 4400 16.2 99 3286 1948 1338 4565 1151
2.67 Ω / Ch. 5000 15.6 99 3171 1752 1419 4843 1221
2 Ω / Ch. 4400 16.0 99 3253 1665 1589 5420 1367
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.2 92 229 0 229 780 197
Mains Voltage 230 VAC, 16 A
Standby 0.3 23 18 0 18 61 15
Power on, Idling 1.2 92 222 0 222 757 191
Pink Pseudo
Noise
16 Ω / Ch. 1150 5.1 98 1134 588 546 1863 470
8 Ω / Ch. 2300 9.2 99 2053 1174 879 2999 756
4 Ω / Ch. 4400 15.9 99 3529 2109 1420 4845 1222
2.67 Ω / Ch. 5000 16.0 99 3564 1935 1630 5561 1402
2 Ω / Ch. 4400 16.0 99 3577 1856 1722 5875 1481
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.1 90 228 0 228 777 196
Table 9.4: PLM20K44 Current Draw and Dissipation Specifications
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9.5. Glossary of Terms, Acronyms and Abbreviations
Term Description
Floating
such as that found in the PLM+ - do mimic the characteristics of transformer-coupled designs to a high degree.
Frame
Lake terminology for a physical unit containing a Lake processing system, i.e. a single LM 26, PLM, PLM+ or legacy Lake Processor.
Frame ID
Frame Preset
Frame Presets are a class of Presets within the Lake processing system. Up to 100 can be stored in the hardware device, and each holds the complete
Gigabit Ethernet
IEEE 802.3-2008 standard.
Hub
A type of network interface device with multiple Ethernet ports. Data arriving at any port is sent to all others. Hubs have been largely replaced by Switches.
In-Rush Current
When power is applied to a piece of electronic equipment, the initial current taken by the PSU can be very high as the various capacitors in the circuitry charge up;
breakers. The PLM+’s PSU contains circuitry to control the in-rush current to prevent this.
Input Level
The amplitude of an audio signal at the point where it is applied to the input of the device, or at the input of an intermediate stage within it. An analog input signal
level will be expressed in dBu’s, while a digital input signal level in dBfS (dBs below digital clip level; fS = full-scale)
IP Address
Every item of equipment connected to an Ethernet network has a unique address called the IP address, so that data gets to the correct place. IP addresses are
written as four groups of three decimal numbers between 0 and 255. In a system consisting of Lake Processors and a Lake Controller they are assigned and
detected automatically.
IP Subnet Mask
IP subnet masks are required in all IP networks. The subnet is determined by the size and type of network being used. For small networks (less than 254 addresses)
a subnet mask of 255.255.255.0 can be used. (A Class C network).
Iso-Float
Iso-Float is Lake’s proprietary method of electronic balancing, which provides a particularly high level of isolation and immunity from ground loops.
ISVPL
ISVPL is an abbreviation for Inter-Sample Voltage Peak Limiter, a proprietary Lab.gruppen technique for ensuring that voltage at the output terminals of a PLM+
or for universal use.
Lake Controller
The Lake Controller is the software application used to control LM 26 Processors, PLM+ Series and other Lake devices. This software application provides
additional functionality and allows various grouping functions for simultaneous control of multiple Lake Processing enabled devices.
Latency
signals. In the Lake system, latency is assured to be constant.
Legacy Lake Device
This term refers to older Lake audio equipment which may form part of an audio system (i.e. Lake Contour Pro 26, Lake Mesa Quad EQ and the Dolby Lake
Processor). The Lake Controller has the capability to control all Lake legacy products.
LimiterMax
LimiterMax is the name given to Lake’s proprietary package of dynamics control which forms part of the Lake Processing system.
Line Driver
over very long cables.
Linear Phase Crossover
See FIR Filters.
Load Library
See Fingerprint, LoadSmart and SpeakerSafe.
Load, equal/unequal
the same load impedance, or if there are different impedances on different channels.
LoadSmart
speaker connected to it. It is intended to be used pre-performance prior to running SpeakerSafe.
Loop-Thru
is termed a loop-thru.
MAC Address
MaxPeak
Lake’s LimiterMax provides independent dynamics control over signal peaks (MaxPeak) and the average signal level (MaxRMS).
Module
The term used in the Lake Controller to describe the virtual set of signal processing that routes an audio input to the various frequency weighted outputs of a
Module Preset
the Lake Controller software, not in the hardware device.
The explanations given in Table 9.5 below are based on the specific use of each term in this manual.
The definitions are not intended to be exhaustive and many of these terms have wider meanings.
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