Lexicon PCM92 User Manual

IMPORTANT SAFETY INSTRUCTIONS

Safety Instructions

Notice For Customers If Your Unit Is Equipped With A Power Cord.

WARNING: THIS APPLIANCE SHALL BE CONNECTED TO A MAINS SOCKET OUTLET WITH A PROTECTIVE EARTHING CONNECTION.

The cores in the mains lead are coloured in accordance with the following code:

GREEN and YELLOW - Earth

BLUE - Neutral

BROWN - Live

As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

•The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E, or with the earth symbol, or coloured green, or green and yellow.

•The core which is coloured blue must be connected to the terminal marked N or coloured black.

•The core which is coloured brown must be connected to the terminal marked L or coloured red.

This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. If the attachment plug needs to be changed, refer servicing to qualified service personnel who should refer to the table below. The green/yellow wire shall be connected directly to the units chassis.

	CONDUCTOR		WIRE COLOR
			Normal	Alt
L		LIVE	BROWN	BLACK
N		NEUTRAL	BLUE	WHITE
E		EARTH GND	GREEN/YEL	GREEN

WARNING: If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground. Severe injury or death can then result if the chassis and earth ground are touched simultaneously.

WARNING FOR YOUR PROTECTION

READ THE FOLLOWING:

KEEP THESE INSTRUCTIONS

HEED ALL WARNINGS

FOLLOW ALL INSTRUCTIONS

the apparatus shall not be exposed to dripping or splashing liquid and no object filled withi liquid, such as vases, shall be placed on the apparatus.

CLEAN ONLY WITH A DRY CLOTH.

DO NOT BLOCK ANY OF THE VENTILATION OPENINGS. INSTALL IN ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS.

DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTERS, STOVES, OR OTHER APPARATUS (INCLUDING AMPLIFIERS) THAT PRODUCE HEAT.

ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFACTURER.

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or third prong are provided for your safety. If the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

Use only with the cart stand, tripod bracket, or table specified by the manufacture, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

POWER ON/OFF SWITCH: If the equipment has a Power switch, the Power switch used in this piece of equipment DOES NOT break the connection from the mains.

MAINS DISCONNECT: The plug shall remain readily operable. For rack-mount or installation where plug is not accessible, an all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated into the electrical installation of the rack or building.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTACLE: Replace fuse with same type and rating only.

MULTIPLE-INPUT VOLTAGE:This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. Connect this equipment only to the power source indicated on the equipment rear panel.To reduce the risk of fire or electric shock, refer servicing to qualified service personnel or equivalent.

If connected to 240V supply, a suitable CSA/UL certified power cord shall be used for this supply.

IMPORTANT SAFETY INSTRUCTIONS

DECLARATION OF CONFORMITY

Manufacturer’s Name:	Lexicon®
Manufacturer’s Address:	8760 S. Sandy Parkway
	Sandy, Utah 84070, USA
declares that the product:
Product name:	Lexicon PCM 92

Note: Product name may be suffixed by the letters-EU.

Product option:	None
conforms to the following Product Specifications:
Safety:	IEC 60065 (7th ed. 2001)
EMC:	EN 55013	(2001+A1)
	EN 55020	(1998)

Supplementary Information:

The product herewith complies with the requirements of the Low Voltage Directive 2006/95/EC and the EMC Directive 2004/108/EC.

Vice President of Engineering

8760 S. Sandy Parkway

Sandy, Utah 84070, USA

Date: November 4, 2009

European Contact: Your local Lexicon Sales and Service Office or

Harman Music Group

8760 South Sandy Parkway

Sandy, Utah 84070, USA

Ph: [phone]

Fax: [phone]

ELECTROMAGNETIC

COMPATIBILITY

This unit conforms to the Product Specifications noted on the Declaration of Conformity. Operation is subject to the following two conditions:

•this device may not cause harmful interference, and

•this device must accept any interference received, including interference that may cause undesired operation.

Operation of this unit within significant electromagnetic fields should be avoided.

• use only shielded interconnecting cables.

U.K. MAINS PLUG WARNING

A molded mains plug that has been cut off from the cord is unsafe. Discard the mains plug at a suitable disposal facility. NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP

POWER SOCKET. Do not use the mains plug without the fuse cover in place. Replacement fuse covers can be obtained from your local retailer. Replacement fuses are 13 amps and MUST be ASTA approved to BS1362.

If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment, recovery and recycling.

Private household in the 25 member states of the EU, in Switzerland and Norway may return their used electronic products free of charge to designated collection facilities or to a retailer (if you purchase a similar new one).

For Countries not mentioned above, please contact your local authorities for a correct method of disposal.

By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery and recycling and thus prevent potential negative effects on the environment and human health.

Warranty

This warranty is valid only for the original purchaser and only in the United States. If outside the United States please contact the local Lexicon® distributor.

1.The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty. Proof- of-purchase is considered to be the burden of the consumer.

2.Lexicon Professional warrants this product, when bought and used solely within the U.S., to be free from defects in materials and workmanship under normal use and service.

3.Lexicon Professional’s liability under this warranty is limited to repairing or, at our discretion, replacing defective materials that show evidence of defect, provided the product is returned to Lexicon Professional WITH RETURN AUTHORIZATION from the factory, where all parts and labor will be covered up to a period of 1 year. A Return Authorization number must be obtained from Lexicon Professional by telephone. The company shall not be liable for any consequential damage as a result of the product’s use in any circuit or assembly.

4.Lexicon Professional reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to install the same additions or improvements on products previously manufactured.

5.The foregoing is in lieu of all other warranties, expressed or implied, and Lexicon Professional neither assumes nor authorizes any person to assume on its behalf any obligation or liability in connection with the sale of this product. In no event shall Lexicon Professional or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to causes beyond its control.

Introduction...................................................................	1
The Front Panel ..............................................................	3
The Rear Panel .................................................................	5
USing the PCM92 ..............................................................	7
Powering Up the PCM92..............................................	7
The Preset Screen...........................................................	7
Selecting Your Audio Source and Clock Source..............	8
Loading a Preset.............................................................	8
Changing Categories......................................................	8
System Presets and Machine Presets...............................	9
The configuration icon..................................................	10
Editing a Preset..............................................................	11
Storing a Preset..............................................................	12
Creating a new System Preset.........................................	13
DSP Configurations........................................................	14
Super Stereo...................................................................	14
Super Mono...................................................................	14
Cascade Stereo...............................................................	14
Cascade Mono...............................................................	14
Mono to Stereo..............................................................	14
Two Mono to Stereo......................................................	14
Networking.....................................................................	15
Overview of TCP/IP Basics............................................	15
Connecting the Computer Directly to the PCM92.......	16
Setup of a Simple Isolated Ethernet Network
Using DHCP ................................................................	16
Virtual Private Networks (VPN)....................................	16
Network Considerations and Limitations.......................	17
Network Troubleshooting..............................................	17
System Menu.....................................................................	18
Audio Setup...................................................................	18
Machine Config.............................................................	20
MIDI Control................................................................	20
Tempo Control..............................................................	20
Network Config.............................................................	21
HiQnet Config..............................................................	21
Restore Factory Defaults................................................	21
Machine Menu..................................................................	21
Soft Row Setup..............................................................	21
I/O Levels......................................................................	21
Various parameters.........................................................	21
Using MIDI.........................................................................	22
MIDI Implementation...................................................	22
How to Load Presets with MIDI...................................	22
How to Assign a Base Channel to the PCM92..............	22
Channel Map (How Channels Map to Machines).........	23
Bank Dump...................................................................	23
Reverse Bank Dump (Bank “Load”)..............................	23
Continuous Controllers.................................................	23
Soft Row Parameter/MIDI CC Map..............................	23
Bank/Preset Map............................................................	24

MIDI SysEx Implementation.........................................	24
The Algorithms................................................................	27
Chamber (Stereo and Mono).........................................	27
Random Delay (Stereo and Mono)................................	27
Hall (Stereo and Mono).................................................	28
Random Hall (Stereo and Mono)..................................	29
Plate (Stereo and Mono)................................................	29
Dual Delay (Stereo and Mono)......................................	29
Resonant Chords (Stereo and Mono).............................	30
Chorus/Flange (Stereo only)..........................................	31
Concert Hall (Stereo only).............................................	31
Room (Stereo and Mono)..............................................	31
Signal Generator ...........................................................	31
The parameters.................................................................	33
PCM92 Menu Navigation Maps ......................................	41
PCM92 Specifications.......................................................	51
MIDI Implementation Chart.............................................	54

Introduction

Congratulations and thank you for purchasing the PCM92 Reverb/Multi Effects Processor! Building on the legendary design of the venerable PCM81 and PCM91, and the breakthrough technology of the PCM96, Lexicon brings you the highly-anticipated PCM92 Stereo Reverb/Effects Processor.

An artful blend of heritage and innovation, this powerhouse processor delivers 28 new and legendary Lexicon reverbs, delays and modulation effects. Designed to bring the highest level of sonic quality and function to all of your audio applications, the PCM92 will take center stage in your Front-of- House rack as well as your recording suite.

With decades of legacy products to pull from, the PCM92 also includes the finest collection of factory presets available in a stereo processor – over 700 and growing – including some recognizable classics from our immense library of sounds.

The PCM92 gives new capabilities to our traditional reverbs by adding multimode filters in the audio flow. This allows more exact shaping of the reverb while still maintaining the distinctive Lexicon sound. All reverbs also have an “Infinite” switch that allows the reverb to run forever, a useful feature for creating unusual backgrounds and sound effects.

Lexicon’s new Room algorithm provides a more flexible alternative to convolution type reverbs. Reflection patterns can be easily selected, scaled and equalized – all while simultaneously passing audio. They can be instantly reversed or combined with a traditional reverb to extend the decay or bring a stronger sense of “liveness” to the space.

With two channels XLR analog and two channels XLR AES/EBU digital I/O, as well as MIDI and Ethernet connectivity, the PCM92 easily fits into a variety of recording and live sound environments. In any application, the PCM92 delivers the versatility and sound that is unmistakably Lexicon.

Included Items

•PCM92

•This owner's manual

•Power Cord

•Lexicon Warranty Card

•Ethernet Cable

1

The Front Panel

			1			2			3			4		5			6				7

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9

10

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1. Gain LEDs

Each pair of Gain LEDs indicate input signal strength of each of the PCM92’s inputs. If the Audio Source is set to Analog (in the Audio Setup menu), they show analog levels. If Audio Source is set to Digital, they show digital levels. Range is from -18dB, -12dB, -6dB, -3dB, and 0dB.

2. MACHINE Button

The PCM92 can be configured as a single system or as 1-4 “machines”, each of which can run its own preset. The Machine button cycles the selected preset through its system and machine configurations.

3. SELECT Knob

Turn the Select knob to scroll through presets and menu options. Press the Select knob to select the current preset or menu option. Once you’ve selected a menu option, you can turn the Select knob to adjust the menu option’s value (Press the Back button to accept the change.)

4. A, B, and C Knobs

These knobs adjust parameters shown in the Display. Turn Knob A to adjust the parameter in the top row, Knob B to adjust the parameter in the second row, and Knob C to adjust the parameter in the third row. Press Knob A to access additional pages of parameters when in the Soft Row. Press Knob C to view the current preset’s Algorithm, Bank number, Program number, and MIDI channel. These knob also have additional context-sensitive functions when pressed.

5. TAP/TEMPO Button

Press two or more times to set tempo for delays and modulated effects. Look for presets with (T) in the name for effects that react to tempo.

6. STORE Button

Press to store a preset. When pressed, a menu appears in the Display where you can enter a new name for the preset.

7. Power Button

Press to turn the PCM92 on or off.

8. Display

This high resolution, high contrast, and high viewing angle OLED (Organic LED) display shows menu and box configuration and status information.

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9. BACK

Pressing this button moves you up one level in the menu tree. Note that when a System preset is loaded, this button takes you to the System Mode Category Selection menu. When a Machine preset is loaded, the Back button takes you to the Machine Mode Category Selection menu.

10. LOAD

Press this button to load the selected preset. You can also press the Select knob to load a preset.

11. COMPARE

This button is used to compare an edited preset against its unedited self. When a preset is loaded, this button’s LED is off. As soon as the preset is edited in any fashion, the LED lights. If the button is pressed, the edited state is temporarily stored and the preset is reloaded from the file system.

During this period of time, editing is disallowed and the button LED blinks rapidly. When the Compare button is pressed a second time, the edited state is restored, editing is allowed again, and the LED is illuminated.

4

The Rear Panel

				1								2								3									4							5

6

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1. Power Jack

Standard 3-pin IEC power connector. 100-240V, 50-60Hz automatic switching to correct voltage range.

2. Ethernet Input

This RJ-45 connection is used to network PCM92 devices and control them via Ethernet.

3.MIDI IN

Receives MIDI information from other MIDI equipment such as master keyboard controllers, MIDI foot controllers, sequencers and synthesizers.

MIDI THRU

Passes any MIDI data received without change.

MIDI OUT

Transmits MIDI data to other equipment.

4.AES/EBU In/Out

AES/EBU format digital connectors conform to AES professional standards.

5. Analog In/Out

Output impedance is 30Ω, electronically balanced, and levels up to +20dBu maximum full scale.

6.FOOT CONTROLLER/FOOTSWITCH JACKS

Functionality to be implemented in a future release.

7.WORD CLOCK INPUT

This connection allows the PCM92 to lock to a master system clock. It is not terminated. For best results we recommend using “T” connectors when setting up a BNC Word Clock network and terminating the end of of this network with a 75 ohm BNC terminator.

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Using the PCM92

Powering Up the PCM92

1.Plug in the power cord.

2.Press the Power button.

3.The Lexicon® logo appears, and remains until the boot process is complete. Next, the Preset screen appears, showing the currently loaded preset.

The Preset Screen

The Preset screen is the starting point for many of the instructions in this manual, so it’s a good idea to know how to get to the Preset screen. In most cases, pressing the Back button one or more times will take you back to the Preset screen. If you press the Back button while viewing the Preset screen, you’ll arrive at the Machine or System Category Selection screen. In this case, just turn the Select knob to select a category (the current category is marked with an asterisk), and press the Select knob to load it. You will then be taken to the Preset screen.

The Preset screen shows the current preset and configuration. Note that the Preset screen has two “views”: System view (for System Presets) and Machine view (for Machine Presets). For more information about System and Machine Presets, see page 9.

System View

Current Preset

Clock Sync icon

	1:Single Stereo Config		Clock Rate
			48
	(System View)
		Configuration Icon
	Machine View
	Current Preset		Clock Sync icon
			Clock Rate
	0:Large Hall		48

				1:PreDelay	:20ms
				2:ReverbTime	:2.79s
				3:RvbOutFreq	:6500.0Hz
Soft Row Parameters					Configuration			Icon

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Selecting Your Audio Source and Clock Source

1.Press the Machine button until the words “System View” appear in the Display.

1:SinglConcertHallStereo->FlaCongefig	9648
(System View)

2. Press the Select knob. The System Menu appears.

System Menu	Version 1.0	48
+Audio Setup
+System Control
+MIDI Control

3.With Audio Setup highlighted, press the Select knob. The Audio Setup menu appears.

|:Audio Setup	48
Audio Source: ANALOG	A
Clock Source: INTERNAL	B
Clock Rate: 48KHz (Lock)	C

4.Turn Knob A to select your audio source (Analog or AES).

5.Turn Knob B to select your wordclock source (Internal, AES, or BNC).

6.Press the Back button twice to save your changes and return to the Preset screen.

Loading a Preset

1.From the Preset screen, turn the Select knob to scroll through the available presets in the current category. (Presets are arranged in categories within the PCM92; see Changing Categories below for more information.) The preset name blinks after you turn the Select knob, indicating that you are in preset selection mode.

2.Press the Select knob to load the preset you’ve selected. The display briefly reads Loading Preset, and the preset name appears. It is no longer blinking.

Changing Categories

Presets are grouped into categories in the PCM92. Each category has its own set of presets. When you turn the Select knob while viewing a preset, you only see presets available in the current category.

System Presets and Machine Presets each have their own set of categories. System Preset categories are based on DSP configurations (see page 14), and Machine Preset categories are based on algorithms (see page 27).

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System Presets and Machine Presets also have a User category, where you can access user-edited presets. Presets in the User category are stored on the PCM92.

To select a different category

1.From the Preset screen, press the Back button. The Category Selection screen appears. Note that there are different Category Selection screens for System Presets and Machine Presets:

Category Selection Screen - System Presets

System Category Selection	96
Default Configurations *
Combined Mono Reverbs
Combined Mono Effects
Category Selection Screen - Machine Presets
Preset Category Selection	96
Halls (Small) *
Halls (Medium)
Halls (Large)

2.Turn the Select knob to scroll through the available categories. (An asterisk appears next to the currently selected category.)

3.Press the Select knob to load the highlighted category. A flashing preset name appears (if it is not the currently selected preset).

4.Select a preset with the Select knob, and press the Select knob to load it.

System Presets and Machine Presets

The PCM92 features a single powerful processor, which can be used as up to four virtual machines. For example, you could send the left input signal through a mono reverb in one virtual machine and send the right input signal through a mono delay in another virtual machine. You could then send both signals through a chorus effect on a third virtual machine. You could then save this configuration as a System Preset. It’s a preset that includes a system of virtual machines.

System Presets can be extremely complex and are generally tailored especially for the mix you’re working on. Lexicon® has provided a number of these presets, just to give you an idea about what you might do. Who knows? You might like them just the way they are. Feel free to make modified versions of the factory presets, or create your own from scratch. The possibilities are nearly endless, so have fun.

When a preset only includes a single virtual machine, it’s called a Machine Preset.

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Note that pressing the Back button or the Select knob have different results depending on what kind of preset is loaded. The following diagram shows what happens when you press the Select knob, Back button, and Machine button in both System View and Machine View.

System Category				Machine Category
Selection View				Selection View
Press			Press	Press				Press
Select			Back	Select				Back

	Press Machine		Press Machine
System View	Button	Machines 1-4	Button
(System Presets)		(Machine Presets)

Press			Press	Press				Press
Select			Back	Select				Back
System Menu				Machine Menu

The configuration icon

The Configuration icon appears at the upper right corner of the Display. It tells you if a System Preset or a Machine Preset is loaded.

When a System Preset is loaded, a border appears around the Configuration icon and the words System View appear in the Display, below the preset’s name.

1:ConcertHall->Flange	48
System View
-Press Machine Btn To View Engines
(System View)

Configuration Icon

(System Preset)

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When a Machine Preset is loaded, the selected machine is highlighted in the Configuration icon, and three of the loaded preset’s parameters appear at the bottom of the Display.

0:Med Hall	48

1:PreDelay :14ms 2:MidRTReverbTime :1.59s

3:RvbOutFreq :4750.0Hz

Configuration Icon

(Machine Preset)

Press the Machine button repeatedly to cycle through the virtual machines in a System Preset, and eventually back to the System Preset.

Editing a Preset

To edit a System Preset, you must edit the virtual machines within it. Press the Machine button to cycle through the virtual machines within a System Preset.

Each virtual machine contains a set of parameters that you can edit and adjust. When a virtual machine is selected, three of its parameters appear at the bottom of the Display. Adjust the first parameter with Knob A, the second parameter with Knob B, and the third parameter with Knob C. To see the next set of parameters you can adjust, press Knob A.

	0:Med Hall		48
		1:PreDelay	:14ms
		2:MidRT	:1.59s
		3:RvbOutFreq	:4750.0Hz

Soft Row Parameters

Each virtual machine has 8 parameters you can adjust this way. All presets have more than 8 parameters, but only 8 can be edited via the A, B, and C knobs in this fashion. You can choose which parameters are in the list by using the Soft Row Setup menu located in the Machine menu (see page 21 for more information).

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Storing a Preset

Once you’ve edited a preset, you can store it on the PCM92.

1.From the Preset screen, press the Store button. The Save As screen appears.

Select Knob -> Change Position

ʻAʼ Knob -> Change Letter

Save As: Single Stereo Config

2.Turn the Select knob to select a letter to change.

3.Turn Knob A to change the selected letter.

Press Knob A to toggle between uppercase, lowercase, special characters and numbers.

Press Knob B to clear the selected character space.

4.Repeat steps 2 and 3 until you’ve changed all the letters you want to change.

5.Press the Select knob to continue. The numbered list appears.

0:- Empty -

1:- Empty -

2:- Empty -

3:- Empty -

4:- Empty -

6.Turn the Select knob to select a slot in the numbered list. The preset’s name automatically appears in the selected slot.

7.Press the Select knob to save the preset to the selected slot. “Storing Preset” appears briefly in the Display and you are returned to the Preset screen.

Creating a new System Preset

One way to create a new System Preset is to edit an existing System Preset and save it to the User category. Another way is to start from scratch, as described below.

1.With any System Preset loaded, press the Select knob. The System menu appears.

2.Highlight Machine Config with the Select knob, and press the Select knob. The available DSP configurations appear.

3.Turn the Select knob to highlight a configuration and press the Select knob to choose it. You return to the Preset Screen. The preset’s name indicates the configuration you just selected (for example, if you selected the Cascade Stereo configuration, the preset’s name is Cascade Stereo Config).

4.Press the Machine button to select a Machine Preset within your System Preset.

5.Press the Back button to access the Preset Category menu.

6.Turn the Select knob to highlight a category and press the Select knob to choose it. A flashing Machine Preset name appears.

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7.Turn the Select knob to choose a Machine Preset and press the Select knob to load it.

8.Press the Machine Button to choose the next Machine Preset (if there is one) and repeat steps 5 through 7.

9.Repeat step 8 for each virtual machine in your System Preset.

10.Press the Machine Button until your System Preset is selected.

11.Press the Store button and follow the Storing a Preset procedure described on page 12.

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