Lexicon Recording Studio User Manual

Owner’s Manual

Complete reCording solution

IMPORTANT SAFETY INSTRUCTIONS

WARNING FOR YOUR PROTECTION

READ THESE INSTRUCTIONS:

KEEP THESE INSTRUCTIONS

HEED ALL WARNINGS

FOLLOW ALL INSTRUCTIONS

The symbols shown above are internationally accepted symbols
that warn of potential hazards with electrical products. The
lightning flash with arrowpoint in an equilateral triangle means
that there are dangerous voltages present within the unit. The
exclamation point in an equilateral triangle indicates that it is
necessary for the user to refer to the owner’s manual.

These symbols warn that there are no user serviceable parts
inside the unit. Do not open the unit. Do not attempt to service
the unit yourself. Refer all servicing to qualified personnel.
Opening the chassis for any reason will void the manufacturer’s
warranty. Do not get the unit wet. If liquid is spilled on the
unit, shut it off immediately and take it to a dealer for service.
Disconnect the unit during storms to prevent damage.

SAFETY INSTRUCTIONS

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED. CONNECT ONLY TO A
MAINS SOCKET OUTLET WITH 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.

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.

DO NOT USE THIS APPARATUS NEAR WATER

THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING
LIQUID AND NO OBJECT FILLED WITH 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 manu­facturer, 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: For products provided with a power switch, the
power switch DOES NOT break the connection from the mains.

MAINS DISCONNECT: The plug shall remain readily operable. For rack­mount 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:

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.

This Equipment is intended for rack mount use only.

This equipment may require the use of a

IMPORTANT SAFETY INSTRUCTIONS

Section Title

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.

DECLARATION OF

CONFORMITY

Manufacturer’s Name: Lexicon Professional
Manufacturer’s Address: 8760 S. Sandy Pkwy.
Sandy, UT 84070, USA

Declares that the product:

Product name: Lexicon Alpha™
Note: Product name may be

suffixed by the letters-EU.

Product option: None

Conforms to the following Product Specifications:

Safety: IEC 60065 (2002)

EMC: EN 55013 (2001 + A1)
EN 55020 (1998)

Supplementary Information:

The product herewith complies with the requirements
of the Low Voltage Directive 72/23/EEC and the
EMC Directive 89/336/EEC as amended by Directive
93/68/EEC.

Vice-President
of Engineering - MI

8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Date: February 2, 2006

European Contact: Your local Lexicon
Professional Sales
and Service Office or

Harman Music Group
8760 S. Sandy Pkwy.
Sandy, UT 84070 USA
Ph: [phone]
Fax: [phone]

Service Info/Warranty

SERvICE INFO

If you require technical support, contact Lexicon® Professional Customer Service.
Be prepared to accurately describe the problem. Know the serial number of your unit,
found on a sticker attached to the bottom of the Alpha Studio™. If you have not already
taken the time to fill out your warranty registration card and send it in, please do so
now.

Before you return a product to the factory for service, we recommend you refer to
the manual. Make sure you have correctly followed installation steps and operation
procedures. If you are still unable to solve a problem, contact our Customer Service
Department at [phone] for consultation. If you need to return a product
to the factory for service, you MUST contact Customer Service to obtain a Return
Authorization Number. No returned products will be accepted at the factory without a
Return Authorization Number. Please refer to the Warranty information on the follow­ing page, which extends to the first end-user. After expiration of the warranty, a reason­able charge will be made for parts, labor, and packing if you choose to use the factory
service facility. In all cases, you are responsible for transportation charges to the fac­tory. Lexicon Professional will pay return shipping if the unit is still under warranty.

Use the original packing material if it is available. Mark the package with the name
of the shipper and with these words in red: DELICATE INSTRUMENT, FRAGILE! Insure
the package properly. Ship prepaid, not collect. Do not ship parcel post.

WARRANTY

This warranty is valid only for the original purchaser and only in the United States.

1. The warranty registration card that accompanies this product must be mailed (or
online regisration must be completed at www.lexiconpro.com) 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 addi
tions 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.

4

-

TAblE OF CONTENTS

INTROdUCTION ......................................... 8

FEATURES ..................................................................................8

UNPACKING THE ALPHA STUDIOTM ............................................. 9

COMPUTER MINIMUM REqUIREMENTS ......................................9

Windows® ............................................................................................................. 9

®

Macintosh

THE FRONT PANEL .....................................................................10

¼" Instrument Input Jack .....................................................................................10

Line 1/Inst .............................................................................................................. 10

Peak LEDs ..............................................................................................................10

Line 2/Mic .............................................................................................................. 10

Monitor Assign ....................................................................................................... 10

Monitor Mix .......................................................................................................... 10

USB LED ................................................................................................................. 11

Output Level ........................................................................................................... 11

1

⁄8" Headphone Output Jack .................................................................................. 11

THE REAR PANEL ....................................................................... 12

USB Port ................................................................................................................ 12

Line In 1-2 .............................................................................................................12

Mic 1 Input ............................................................................................................ 12

¼" Left/Right Line Outputs ...................................................................................12

............................................................................................................ 9

Table of Contents

CONNECTINg TO ThE AlPhA STUdIO ........ 13

MONITORING CONNECTIONS ................................................... 13

Connecting Headphones........................................................................................ 13

Connecting to Monitor Speakers ........................................................................... 13

Connecting RCA Ouptuts for Monitoring to a Home Stereo ................................ 13

ABOUT RECORDING CONNECTIONS.......................................... 14

To Connect a Microphone ..................................................................................... 14

To Connect a Line Level Source ............................................................................14

To Connect an Instrument .................................................................................... 14

MIxDOWN CONNECTIONS .......................................................15

Connecting to an External Recorder .................................................................... 15

Mixing Within Cubase® LE ................................................................................... 15

WINDOWS® SOFTWARE SETUP ..................................................16

Windows® XP ......................................................................................................... 16

5

Table of Contents

MACINTOSH® SOFTWARE SETUP ............................................... 17

Mac OS ................................................................................................................... 17

USINg ThE lExICON® AlPhA STUdIO™ ...... 18

Section I – Recording Audio With the Alpha Studio™ ...................................... 19

A. Recording Using the Microphone/Line Input........................................... 19

B. Recording a Guitar using the Instrument Input ..................................... 26

Section II – Using Software Input Monitoring .................................................... 28

Section III – Adjusting the Buffer Settings........................................................... 31

A. Adjusting the Buffers in Windows
B

. Adjusting the Buffers in Mac OSX ............................................................ 32

®

XP ....................................................31

SPECIFICATIONS ........................................ 34

SIgNAl ROUTINg dIAgRAM ..................... 35

6

7

Introduction

INTROdUCTION

Congratulations on your purchase of the Lexicon® Alpha Desktop Recording
Studio™. The Alpha Studio is a complete package of hardware and software that turns
your USB-equipped computer into a professional multitrack recording workstation.
Whether you use it for high-quality stereo location recording with a laptop computer,
or for multitrack overdubbing and mixing in a home studio desktop system, the Alpha
Studio hardware provides the professional-quality inputs and outputs, metering, and
level controls that computer sound cards or built-in audio connections lack.

So you can make full use of the Alpha Studio right away, we’ve included the popular
Steinberg® Cubase® LE production suite software for PC and Mac® computers. Cubase
LE offers integrated multi-track recording, editing and mixing of up to 48 audio tracks,
64 MIDI tracks, VST® Instruments support, VST plug-in effects support, and an array of
additional features. Lexicon’s Pantheon™ VST reverb plug-in is a major feature of the
Alpha Studio package, providing the lush Lexicon reverbs that have been used on pro­fessional recordings for over thirty years. Alternatively, the Lexicon Alpha Studio may
be used as an interface with almost any other major audio recording software you may
have, such as Steinberg Nuendo®, Cubase SX®, MOTU® Digital Performer®, Garage
Band®, Cakewalk® Sonar™, and many others.

FEATURES

THE ALPHA DESKTOP RECORDING STUDIO™
PROvIDES THE FOLLOWING:

• 4 analog audio inputs

• 1 - XLR mic input with extremely low noise preamp and 50 dB gain

• 2 - ¼" analog RF filtered TRS active-balanced line inputs

• 1 - ¼" high-impedance analog instrument input

• 2 - RCA outputs

• 2 - ¼" analog TRS active line outputs

• High powered headphone amplifier

• 24-bit A/D and D/A converters, supporting sample rates of 44.1 kHz and 48 kHz

• Zero-latency analog record monitoring with adjustable balance between

Direct and Playback Signals

• Stereo and Mono input source monitoring

• 100% USB Powered

8

Unpacking the Alpha Studio

UNPACkINg ThE AlPhA STUdIO™

The Alpha Studio™ is shipped in one carton, containing the Alpha Studio Interface
hardware, Steinberg® Cubase® LE and Lexicon® Pantheon™ plug-in software for
Windows® and Macintosh® based systems. After unpacking, save all the packaging
materials in case you ever have to ship the unit. Thoroughly inspect the Alpha Studio
and packing materials for signs of damage. Report any shipment damage to the carrier
that delivered the product or dealer from whom you purchased the product at once.

THE FOLLOWING ITEMS ARE INCLUDED:

• Alpha desktop audio interface hardware

• Installer CD-ROM containing Cubase LE Recording Software, USB drivers
and the Lexicon Pantheon Reverb Plug-in for Mac

• USB Connector Cable

• This Owner’s Manual

• Lexicon Pantheon Reverb Plug-in User’s Guide

• Lexicon Professional warranty registration

NOTE: The full Cubase LE manual is located “online” on the software CD

COMPUTER MINIMUM REqUIREMENTS

Powerful software for audio recording requires a powerful computer with the right
operating system software, processor, memory, and hard drive space. Most computers
currently sold already meet these requirements, or can be upgraded to be compatible
with the Lexicon Alpha Desktop Recording Studio. As with all such systems, adding more
RAM than the minimum will allow you to do more processing and improve perfor­mance, and more disk space will allow you to record more tracks for a longer time. See
the Alpha Studio Software Installation Guide and the Cubase LE manual on the software
installation CD for more information.

®

and Windows®

TM

WINDOWS®

• Pentium® III 500 MHz or AMD K7 processor, or better
(Pentium 4/Athlon 1 GHz or faster recommended)

• Windows XP Home or XP Professional

• 256 MB RAM

(512 MB recommended)

• 1 GB of available hard disk space

• 7200RPM hard disk type or better

MACINTOSH

®

• Power PC®, G4 Processor (450 MHz or faster)

• Mac OS X version 10.2.8 or higher

• 256 MB RAM minimum

(512MB recommended)

• 1 GB available hard disk space

• 7200RPM hard disk type or better

9

Monitor Mix

Output Level

Instrument

Monitor

Stereo Mono

Peak Peak USB

Direct Playback

1/4˝ Instrument Input Jack

Peak LEDs

Line 1 / Instrument Line 2 / Microphone

Monitor Assign

Monitor Mix Control

Output Level

1/8˝ Headphone Output Jack

Line 1/Inst

Line 2/Mic

The Front Panel

For the cleanest
recording, adjust
the Gain so the
Peak LED flashes
only occasionally,
on the loudest part
of the perfor­mance.

ThE FRONT PANEl

The Alpha Studio™ front panel offers the following features:

¼" INSTRUMENT INPUT JACK

This ¼" jack accepts unbalanced, low-level, high impedance instrument sources such
as electric guitar, acoustic guitar with a pickup, and electric bass. The input gain
is adjusted using the Line 1/Inst knob on the front panel. When an instrument is
plugged into this input, it disables the Line 1 audio input on the rear panel.

LINE 1/INST

This knob adjusts the Line 1 and Instrument Input gain.

PEAK LEDS

These LEDs light when the input signal is within 5dB of analog clipping. If the Peak
LEDs flicker occasionally, the signal is approaching clipping levels, but does not neces­sarily indicate distortion or actual clipping.

LINE 2/MIC

This knob adjusts the Line 2 and Mic Input gain.

MONITOR ASSIGN

This button selects whether a pair of analog audio sources will be heard in stereo or
mono in the Direct Monitor Mix. In Stereo mode, the left inputs (Line 1/Inst) are rout­ed to the left channel and right inputs (Line 2/Mic) are routed to the right channel.

DO NOT TURN
DOWN A GAIN
CONTROL TO
GET THE RIGHT
MIX IN YOUR
HEADPHONES OR
MONITORS WHILE
RECORDING. USE
THE Monitor
Mix CONTROL
FOR THIS
PURPOSE.

In Mono mode, you’ll hear all inputs in the center of the Direct Monitor Mix through
the Headphone or Line outputs.

When the Monitor switch is in Mono, it does not change the signals going to the com­puter in any way—they will still be separate and stereo in the computer.

MONITOR MIx

The Alpha Studio gives you the ability to hear your analog input signals directly and
immediately while recording, without having to adjust levels in software, and before
the delay caused by digital converters and computer recording latency. This zero-laten­cy analog monitoring is controlled by the Monitor Mix knob, which you can use to
adjust the blend between the Alpha Studio’s live analog inputs (called “Direct”) and
any audio coming back from the computer via USB (“Playback”). To adjust the play­back mix coming back from the computer (previous tracks, effect returns etc.), use

10

the faders on the Mixer screen of the software. To hear only the live source input sig­nals plugged into the Alpha StudioTM, turn the Monitor Mix knob fully left to Direct.
To hear only the mix from the computer, turn the Monitor Mix knob fully right to
Playback. The output from the Monitor Mix control is routed directly to the Line and
Headphone outputs. This ability to easily control the relative levels of computer audio
playback and latency-free live analog inputs is very useful when overdubbing.

USB LED

When the blue USB LED is on, it indicates the Alpha Studio is being powered by your
computer and audio signals can pass in and out of the system.

OUTPUT LEvEL

This knob controls the overall output level of the Alpha Studio’s Line and Headphone
outputs.

1

⁄8" HEADPHONE OUTPUT JACK

The high powered Headphone output accommodates stereo headphones with an 1⁄8"
stereo plug.

The Front Panel

11