5.
Staple or clip your original bill of sale here.
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Quick-Start Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Front Panel Controls & Indicators . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents (continued) Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Appendix: A. Factory Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 B. User Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction As the owner of a Citation 5.0 A/V Controller, you have a unique product at your command. Combining elegant, sculpted metal panels, the latest state-of-the-art circuit design, onboard Dolby® Digital decoding and Madrigal Audio Laboratories heritage of audio excellence, the Citation 5.0 will bring many years of enjoyable listening to your music or home-theater system.
Important Safety Information Safety Information CAU TIO N RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Installation Location • To ensure proper operation and to avoid the potential for safety hazards, place the unit on a firm and level surface. When placing the unit on a shelf, be certain that the shelf and mounting hardware can support the weight of the product. • Do not place the unit directly on a carpeted surface. • Avoid installing the 5.0 in extremely hot or cold locations, or in an area that is exposed to direct sunlight or heating equipment. • Avoid moist or humid locations.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept interference received, including interference that may cause undesired operation. Changes or modifications may cause this unit to fail to comply with Part 15 of the FCC Rules and may void the user’s authority to operate the equipment.
Quick-Start Instructions In order to get the maximum benefit from your new Controller, we strongly suggest that you take the time to carefully read this Owner’s Manual. It contains a wealth of information that will help you to properly install, calibrate and operate the Citation 5.0. We realize, however that you may be anxious to get into action, so the following steps will provide the minimum instructions needed to get things hooked up and “on the air.
Quick-Start Instructions Quick-Start Connection and Setup Connect to coaxial digital audio output of A/V sources, DVD, HDTV, CD, etc. Connect to output of composite video sources Connect to composite video input of a multiroomvideo-distribution system or a 2nd VCR Connect to composite video input of main monitor Connect to optical digital audio output of A/V sources, DVD, HDTV, CD, etc.
Analog Audio Connection Analog 1 Digital Audio Connection Digital 7 (from RF Demodulator) VCR Composite 2 Analog 2 None Satellite Receiver Composite 3 Analog 3 Digital 8 Tuner None Analog 4 None CD Player or External D/A None Analog 5 Digital 10 CD Changer or External D/A None None Digital 11 DVD Player Composite 4 None Digital 9 3. Connect the Rec A Audio Output of the 5.0 to the “Rec/In” input of the audio recorder or VCR that will be used to record the output of the 5.0.
Quick-Start Instructions 12. If you will be using a video display, turn it on at this point, and make certain that it is switched to the video input that matches the connection jack used. 13. To turn on the 5.0, press either the Watch button on the front panel or remote if you wish to use the video sources, or the Listen button if you wish to use one of the audio-only sources. The green indicator on the front panel will go out, and be replaced by a soft blue illumination behind the word on the front panel.
@ ! ) 9 FRONT CLIP Pro g 8 : Dolb y Di g ital DVD Vol=35 +10dB LEFT RIGHT 0dB -10dB LEFT Standby Watch Listen Mute RIGHT BACK Volume On / Off 5.0 AV Controller 1 2 3 4 5 6 7 8 1 Master Power Button 5 Power Indicator 9 Steering Logic Display 2 Standby Button 6 Standby LED ) Level Indicators 3 Watch Selectors 7 Mute Button ! Information Display 4 Listen Selectors 8 Volume Control @ Remote Sensor 1 Master Power Button: This button is the main power control for the 5.0.
Front Panel Controls & Indicators 7 Mute Button: Press this button to temporarily reduce or silence the audio output. Press the button again, or change the volume level to return to normal operation. Note that when the Mute function is activated, the level at the Record Outputs £ and Remote Zone ™ will remain uninterrupted.
Rear Panel Connections Citation 5.0 with the Master Power to make certain that any power amplifiers connected to the 5.0 are also turned off when making or removing any connections. This eliminates the risk of possible damage to your speakers or other system components. When making connections to the Citation 5.0 make certain that the input plug is firmly seated in the input jack. This prevents intermittent connections which may interfere with performance.
¢ Front Channel Audio Outputs: Connect these jacks to the inputs of the audio power amplifier feeding the front left and right speakers. Rear Panel Connections ∞ Center Channel Audio Output: Connect this jack to the input of the audio power amplifier feeding the center channel speaker. § Mono Subwoofer Output: Connect this jack to the line-level mono input of a powered subwoofer, or the input of an audio amplifier driving a single passive subwoofer.
° S-Video Main Output: Connect this jack to the main video display device that will be used to view the output of the source selected by the 5.0. · S-Video Inputs: Important Note on S-Video Sources: The 5.0 does not convert standard, composite video input signals into S-video outputs. In order for a video signal to appear at any of the S-video outputs, the input program must contain S-video source.
Remote Control Operation Remote Control Operation Citation 5.
Main Portion of Remote å Standby ƒ Listen ∫ Volume +/– © Cancel ¬ Dolby Mode Selectors ç Watch ˙ Menu µ Balance Control Menu Control Buttons ≠ Display Secondary Control Cover ∆ Custom Mode Selectors Lower Portion of Remote O Center Mode Adjustments U Remote Zone Off { Reset P Analog Input Program Buttons V Trigger 1 Manual Control } Mono Mode Selector Q Digital Input Program Buttons W Trigger 2 Manual Control : Battery Compartment Cover R Remote Zone Analog Inputs X Hi-EQ Control " Ba
Remote Control Operation © Cancel: This button has two functions. Its main use is to exit from the menus and return either to normal operation or to the previous menu when configuring the 5.0 or adjusting system parameters. Within some menus, the Cancel button will have specific “exit” functions that are shown on screen at the appropriate time. Pressing this button when the unit is in normal operating modes and no other menu is present will reset all user parameters.
R Remote Zone Analog Inputs: Pressing these buttons selects the inputs that are routed to the Remote Output jacks ™ ‡ c. Note that only analog audio inputs may be routed to the remote zone, so the selection process here is different from the input program profiles that may be configured for the main room. When selecting a remote zone input, the number on the button pressed corresponds directly with the analog input jack numbers on the rear panel.
System Installation System Installation The Citation 5.0 is a powerful audio controller that combines digital signal decoding, surround sound processing and a wide range of flexible adjustments in one easy-to-use package. Although many aspects of the 5.0 resemble familiar audio components, the wide range of control it offers means that some of the steps in the installation process may be a bit different from traditional analog-only audio products.
Audio Inputs In addition, the 5.0 will decode both PCM digital signals and Dolby Digital (AC-3®) data. PCM digital is used by both conventional CD players or the standard digital output of a laser disc player, while Dolby Digital is used on DVD as well as high-definition television sets (HDTV), many new computer games and other future digital audio devices. Decoding for the DTS digital audio system is an optional feature of the 5.0. (Check with your dealer to determine if your 5.
System Installation System and Accessory Inputs If the 5.0’s front panel remote sensor is blocked by cabinet doors or other obstructions, an optional, external IR sensor may be connected to the IR Input ‚. In some instances, the IR input may be connected to the IR output of another product with compatible IR systems. Consult your dealer or custom installer if you have questions concerning the use of the IR input.
Auxiliary Video Display Recorder “A” Composite Video S-Video Composite Video Projection Screen or Low-Voltage Control IR Remote Sensor Main Video Display For Future Use S-Video S-Video S-Video Composite Video Composite Video IN 2 IN 3 MAIN IN 1 AUX MAIN AUX 8 9 5.
Video Outputs Important Note: During initial setup, connect your projector or monitor to the main com- System Installation posite video output; NOT the S-video output. This is recommended because important on-screen display information is factory-programmed to appear at this output connection only.
System Accessory Connections When the triggers are used to power compatible audio power amplifiers from Citation or other manufacturers, connect the Trigger 1 Output ⁄ to the Trigger Input on the amplifier. The factory defaults for the 5.0 will automatically send a “Power ON” signal to these amplifiers from both Trigger 1 and Trigger 2 when the 5.0 is turned on, and it will return them to a Standby mode when the 5.0 is turned off.
System Installation Connections to other devices that operate via 6- to 12-volt trigger signals may be made by connecting either of the Trigger Outputs ⁄ to the input of the controller or device with a 3.5mm mono mini-plug. Once the external controller or device is connected to the 5.0, the control of trigger states may be made using the menu options described on page 41.
System Configuration Speaker Selection and Placement The placement of speakers in a multichannel-home-theater system will have a noticeable impact on the quality of sound reproduced. No matter which type or brand of speakers is used, the same model or brand of speaker should be used for the front left, center and right speakers. This creates a seamless front soundstage, and eliminates the possibility of distracting sonic disturbances that occur when a sound moves across mismatched front channel speakers.
TV or Projection Screen Center Front Speaker Right Front Speaker No more than 6 feet when rear-mounted speakers are used System Configuration Left Front Speaker Optional Rear Wall Mounting Figure 5 The distance between the left and right speakers should be equal to the distance from the seating position to the viewing screen. You may also experiment with placing the left and right speakers slightly forward of the center speaker.
If side wall mounting is not practical, the speakers may be placed on a rear wall, behind the listening position. Again, they should be located so that the bottom of the cabinet is at least two feet higher than the listener’s ears. The speakers should be no more than six feet behind the rear of the seating area. Initial Turn-On Once the speakers have been installed, the next step is to calibrate and configure the 5.0 for the specifics of your installation.
Citation 5.0 Rev X.XX RESET System Configuration Figure FPD-1 Included in the initial turn-on message will be the “Rev” number for the software that operates the 5.0. It is a good idea to note the software version that is installed in your unit in the place provided in Appendix B. Although it is unlikely that you will encounter problems with the 5.
Ð r e u u u p a n n r r b e l M t t r r w a i S a i L e r n d n d o o k e b p e a k n M e / R S S p k S p k C o n f e r s r D i S p e a e n p r r f r S e t u p u < Ð k r s S M A L L S M A L L s S M A L L i g D U A L D R V S T E R E O s t a n c e s Ð > k e r L e v e l s Ð > Figure OSD-4 The first three lines tell the system if the speakers used are capable of extended low-frequency reproduction.
System Configuration • Select MAIN when conventional point-source speakers are installed. They should be connected to the Back Channel Outputs • on the rear panel. After selecting the surround speaker configuration, press the ¤ Menu Control button so that Subwoofers is highlighted.
Ð e r e u t o n r Sp e Sp k D i nt te r ro u a k e r r S e t s t a n c L / R S S p k r n d s D u e p i s t a p M e : k r 1 1 0 n c e s n u < Ð 0 F t 0 F t 5 F t Figure OSD-5 After the distance information has been entered for the Front Left/Right speakers, press the ¤ Menu Control button so that Center Spkr is highlighted, and repeat the procedure for the distance from the center channel speaker to the prime listening position using the ‹ or › Menu Control buttons .
System Configuration Press the ¤ Menu Control button and note that the words Noise Source ON will be highlighted. If you wish to temporarily silence the test noise at any point during this step, press the ¤ or ⁄ Menu Control buttons until this line is highlighted. Then, press the ‹ or › Menu Control button until the display changes to Noise Source OFF. The configuration process may be resumed by using the buttons to turn the display back to Noise Source ON.
It is important that the output level for all channels be made with the ‹ or › Menu . When they are used, you will see the reference offset indication that appears below the speaker position icon change to a positive or negative number. DO NOT use the main system Volume Control to adjust anything other than the Left Front channel when the reference level is being established.
System Configuration The second line, just below the line indicating how to return to the “Main Menu,” contains the program number. Remember that this number only defines the sources and conditions that you attach to it in the following steps. It DOES NOT refer to any specific input connection on the 5.0’s rear panel. Before proceeding it is a good idea to have a chart of which input sources are connected to each of the rear panel inputs. This will speed the installation process.
If you have selected a digital audio input, the 5.0 will not display either the Input Level or Input Balance choices, as they are not applicable to digital sources. Instead, the next menu item after Audio Input will be Auto Detect, with choices of OFF or ON (Figure OSD-9).
System Configuration The last item on the Program Setup menu determines whether either or both triggers are activated when the program is selected. Press the ¤ Menu Control button one more time, and use the ‹ or › Menu Control buttons to determine trigger status. If you wish to have either trigger activate for certain, but not all, sources, the Power option for trigger programming must be turned OFF in the System Options sub-menu titled Program Triggers.
Important Note: Changing this setting WILL NOT convert video signals from one format to the other. It only adjusts the 5.0’s internal display circuitry to operate with one standard or the other. Your 5.0 was shipped preset for the video standard in use in your area. Do not change under normal circumstances. If you do, and your video monitoring devices are not set to operate in the same standard, the video display will lose color, and may become unviewable.
System Configuration After selecting the first letter, press the › Menu Control button to move one space to the right, and select the second character as you did the first. Should you make an error or change your mind, use the ‹ Menu Control button to move one space left. When you have entered the desired text, press the ‹ or › Menu Control buttons until all of the letters on the line are highlighted. You may now press the ¤ Menu Control button (Figure OSD-11).
Editing Watch and Listen Lists F o r P r e > > > > > > s P P P P P P W a t c h P r o g r N e x t p r e s s s W A T C H t o 1 Ð L D a n a 2 Ð V C R 3 Ð S A T a n 7 Ð L D d i g 8 Ð S A T d i 9 Ð D V D d i a m s o r S e l e c t l o g F o r P r e > > > > > > a l o g i t a l g g L i N s s P 4 P 5 P 6 P 1 P 1 P 1 Figure OSD-12 s t e n P r o g r e x t p r e s s L I S T E N t o Ð T U N E R Ð C D a n a Ð T A P E 0 Ð C D d i g 1 Ð C D c h a 2 Ð A U X a m s o r S e l e c t l o g i t a l n g e r Figure OSD-1
Operating the Citation 5.0 Operating the Citation 5.0 After installing and configuring the Citation 5.0, and making any desired initial settings, normal operation is a simple matter, thanks to its powerful microprocessor and a sophisticated remote control that allows most changes to be accomplished by pressing one button.
O F F S T A N D B Y Figure OSD-17 POWER OFF STANDBY Figure FPD-3 If the 5.0 will not be used for an extended period (such as a vacation), you may wish to turn it off completely by pressing the Master Power button 1 in until it clicks, then releasing it to the extended position. The green Standby LED 6 will extinguish. Source Selection After turning the 5.
Operating the Citation 5.0 If you wish to use the Watch ç or the Listen ƒ button on the remote control to select a video or audio program, the front panel display will show the program number and its associated source, (Figures FPD-4 or FPD-5), and the on-screen display (Figures OSD-12 or OSD-13) will display a choice of six video or audio program profiles, respectively.
MASTER VOLUME = 07 § m m © Figure FPD-6 § m m m m m m m m m m m m © Figure OSD-19 The present volume level may always be seen in the lower right corner of the front panel display (see Figure FPD-1 on page 32), as long as the display has not been turned off. Should you wish to quickly lower the volume at any time, such as to answer the telephone, simply press the Mute button 7 ∂ on the front panel or remote control.
Operating the Citation 5.0 Press the Balance Control button µ and note that an X/Y display will appear on the screen display (Figure OSD-22). An asterisk will appear at the center of the display to indicate the spot that is the acoustic center of the room, based on the output level settings established in the Speaker Setup menus. Note that this MAY NOT be the physical center of the room, depending on where the listener making the output level adjustments was positioned.
T r i m S p e a k e r L e v e l s t o S e l / § © t o A d d Pr e s s B A L t o E x i t ( o) ( o ) ( o ) + 00 + 0 0 + 0 0 ¶ Ä ( o) + 00 L e f t F r o n t ( o ) + 0 0 ( o ) + 0 0 ( o ) + 0 0 Figure OSD-24 When the adjustment for the front left channel has been made, press the ¤ Menu Control button to move to the next channel that requires adjustment. Repeat the procedure outlined above, and then continue to any additional channel adjustments.
Operating the Citation 5.0 ¶ P r r e s F a c t o r e F a c t o Ä e e t s t s t o e o s : S u r r r y D e f t P r o g r y D e f M a r a o u a u d e t o l t m t o l t P re s s C A N C E L t o e x i t w i t h n o c h a n g e s Figure OSD-25 Below the top line of secondary controls, there is a group of six Analog Input Program buttons P which select the first six program profiles without having to use the Watch and Listen buttons ç ƒ; they offer direct access.
The second division of types of Surround modes occurs among older movie sound tracks and conventional two-channel stereo musical recordings. These can be divided into two sub-categories; those which were recorded with specific surround information encoding, and those which were not. In both cases, more than two channels can be “derived” during playback to provide surround sound. The 5.
Operating the Citation 5.0 Selecting Surround Modes When you select a source to watch or listen to, the last Surround mode used with that source will automatically be chosen. You may change the Surround mode at any time in several ways. One way is to press the buttons on the remote control; press the Dolby Mode Selectors button ¬ for Dolby Pro Logic, which is always available.
Music Modes Using Citation’s proprietary surround matrix designs and 6-Axis Steering Logic technology, the 5.0 overcomes the limitations frequently associated with DSP. By carefully analyzing the spatial clues and ambient reflections which are part of most stereo recordings, the ultrafast steering logic of the 5.0, along with other proprietary circuitry, enables the soundfield processor to produce a pleasing and accurate multichannel soundfield from many types of two-channel recordings.
Operating the Citation 5.0 Viewing System Status At any time, you may press the ¤ Menu Control button to display the status of the system at that moment (Figure OSD-26). The screen will show whether you have selected a source from the Watch or Listen source menus, the name of the source, the specific audio and video inputs associated with that source, the Surround mode and the settings of key attributes associated with the Surround mode, such as high- and low-frequency equalization.
Advanced Features Customizing Surround Modes This menu allows you to quickly and easily modify any of the 5.0’s Surround modes for optimum performance in your listening environment. Depending on the program source which was last selected, different choices will be presented when you are in the Customize Surround Mode menu.
Advanced Features The next line down is Mode Type. Press the ¤ Menu Control button one more time to reach this line, but do note that if you have chosen either Dolby or 6-Axis on the line above (Mode Button), you cannot move below the Mode Button line. This is to preserve their factory settings when they are selected by their dedicated buttons.
The Surround Delay setting determines the length of time delay between the front and back speakers. This should be set to suit your particular taste, anywhere between 0 and 30mSec, or thousandths of a second, the maximum recommendation for home environments. (This delay is in addition to the front-to-back delay programmed during the Speaker Setup procedure.
Advanced Features • Stereo reproduces the front left and right channels through those speakers only. • Mono invokes enhancement circuitry which create an enveloping soundfield from a monophonic input signal; it can be a significant improvement when watching movies with mono sound. Once you have selected a mode to customize, you will find many of the same attributes listed which may be modified to your preference as were associated with analog modes.
After configuring the audio and video inputs, the next line down allows you to have messages concerning the remote zone status (source selected, volume level, etc.) “reported” to the main zone’s displays or not. Pressing the › Menu Control button when this line is highlighted turns the reporting feature ON or OFF. This feature will be helpful in preventing “excess” volume levels from being selected in the remote zone, or simply setting a low “background” level for that area.
Advanced Features To use any of the reset functions, press the Menu button ˙ to make the Main Menu appear. Press the ¤ Menu Control button eight times, and the System Reset will be highlighted. Press the › Menu Control button to enter the System Reset menu (Figure OSD-32).
Note: This would be a good time to record the present system settings using the worksheet provided in Appendix B. At this point, if you have decided NOT to complete the reset action, you may press the Cancel button © and return to the previous menu.
Troubleshooting Guide Troubleshooting Guide The Citation 5.0 is designed for trouble-free operation. In normal use, most users will not encounter any problems with the unit. However, as with any sophisticated electronic device, there may be occasional problems on initial installation or during the life of the unit. The items on this list are a brief guide to the minor problems that you may be able to correct yourself.
Appendix A Factory Presets Using the option and condition sets shown as a starting point, you may customize many aspects of the 5.0 to suit the acoustical requirements of your listening space, the type of equipment installed in your system or your personal listening preferences. Contact your dealer or installer if you have any questions concerning how to customize your system. When you create customized settings for the 5.
Appendix A SYSTEM OPTIONS SET OSD Position Bottom Video Standard NTSC* IR Mode Front Power-On Volume 03 Mute Volume 00 Triggers 1 and 2 Main Power On Mute Off Display Dim Off Note: *Video System is set for NTSC on units shipped to North America. Video System is set for PAL on units shipped to 230V countries.
ANALOG INPUT MODE MAP (Default Settings) 6 Axis Pro Logic Party Cust 1 Rock Cust 2 70mm Cust 3 Class Jazz Movie 2 Movie 3 Music 2 Music 3 Stereo Mono Ref –3 Ref Ref Ref –3 Ref Ref Ref Ref Ref Ref Ref Filters Shelf 7kHz None Shelf 12kHz 7kHz None None None None None None None Logic Speed High High N/A High High Slow High High High High High N/A N/A 0 10 ms 0 0 5 ms 30 ms 0 0 0 0 0 0 0 F/B Delay Bass EQ Off Off Off Off Off Off Off Off Off
Appendix B Appendix B User Worksheets As you become familiar with the capabilities of the Citation 5.0, you may make some changes to the factory configuration. The Worksheets provide a means for you to record the new settings so that they are available for reference. Recording the settings will also make it possible to re-create settings that may be lost due to system resets or equipment malfunctions.
WATCH INPUT PRESETS Name Mode Level Auto Balance Video Projection Background Screen Video Output Mode Level Auto Balance Video Projection Background Screen Video Output Appendix B Input Analog Input 1 Analog Input 2 Analog Input 3 Digital Input 7 Digital Input 8 Digital Input 9 LISTEN INPUT PRESETS Input Analog Input 4 Analog Input 5 Analog Input 6 Digital Input 10 Digital Input 11 Digital Input 12 Name CUSTOM MODE SETTINGS Custom 1 Custom 2 Mode Bass EQ Filters Surround Level Center Lev
Service Information Service Information If your installation has followed the suggestions in this manual you should enjoy many years of trouble-free operation and high-quality listening enjoyment. If you suspect a problem that may require service assistance, contact your dealer. The Citation 5.0 does not contain any user-serviceable parts.
Specifications 6 Digital: 4 SPDIF (RCA-Type), 2 TosLink (optical) 6 Analog RCA pairs Video Inputs 6 Composite video, 2 S-video PAL/NTSC Audio Outputs Stereo Remote Zone and Record, Main Room L, C, R, L and R side, L and R Surround, Stereo Subwoofers, Mono Subwoofer Video Outputs Composite: Main, Aux, Remote Zone, Record S-video: Main, Aux, Remote Zone, Record Level/Impedance: Audio: 5V rms, 500 ohms Video: 1V p/p, 75 ohms Frequency Response: Main Front Channels: 5Hz – 50kHz +1, –3dB, Ref.
Figure Index Figure Index Operating the Citation 5.0 is dependent on understanding the meaning of the various on-screen menus, fron panel display messages and other status messages. To conserve space, each on-screen message generally appears only once in this manual, although many are referred to frequently throughout the manual.
Warranty Period Citation products are warranted for 5 years from date of original purchase. Who Is Protected By This Warranty Your Citation warranty protects the original owner provided that the Citation product was purchased from an authorized dealer. A copy of the original dated bill must be presented whenever warranty service is required. Please attach a copy of your bill of sale to this warranty statement and put it in a safe place.
Citation Madrigal Audio Laboratories, Inc. P.O. Box 781 Middletown, CT 06547 Manufactured in USA A Harman International Company Part # 502-02038-00 ©1998 Madrigal Audio Laboratories, Inc.
