Madrigal Audio Proceed User manual

PR O C E E D
DAP Digital Audio Processor

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO
NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO
NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
NOTICE
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause interference to radio or television
reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna;
• Increase the separation between the equipment and the receiver;
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected;
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION: Changes or modifications to this equipment not expressly approved by the manufacturer could void the user’s
authority to operate the equipment.
The information contained in the manual is subject to change without notice. The most current version of this manual will
be posted on our web site at http://www.madrigal.com.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended
to alert the user to the presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude to constitute a risk of electric
shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the literature
accompanying the appliance.
Marking by the “CE” symbol (shown left) indicates compliance of this device with the EMC
(Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards of the
European Community.

Important Safety Instructions
Please read all instructions and precautions carefully and completely before operating your DAP digital audio
processor.
1. ALWAYS disconnect your entire system from the AC mains before connecting or disconnecting
any cables, or when cleaning any component.
2. This product is equipped with a three-conductor AC mains power cord which includes an
earth ground connection. To prevent shock hazard, all three connections must ALWAYS be
used. If your electrical outlets will not accept this type of plug, an adapter may be purchased.
If an adapter is necessary, be sure it is an approved type and is used properly, supplying an
earth ground. If you are not sure of the integrity of your home electrical system, contact a li-
censed electrician for assistance.
3. AC extension cords are not recommended for use with this product. If an extension cord must
be used, be sure it is an approved type and has sufficient current-carrying capacity to power
this product.
4. NEVER use flammable or combustible chemicals for cleaning audio components.
5. NEVER operate this product with any covers removed.
6. NEVER wet the inside of this product with any liquid.
7. NEVER pour or spill liquids directly onto this unit.
8. NEVER block air flow through ventilation slots or heatsinks.
9. NEVER bypass any fuse.
10. NEVER replace any fuse with a value or type other than those specified.
11. NEVER attempt to repair this product. If a problem occurs, contact your Proceed®retailer.
12. NEVER expose this product to extremely high or low temperatures.
13. NEVER operate this product in an explosive atmosphere.
14. ALWAYS keep electrical equipment out of the reach of children.
15. ALWAYS unplug sensitive electronic equipment during lightning storms.

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From all of us at Madrigal Audio Laboratories, thank you for choosing the
Proceed DAP digital audio processor.
A great deal of effort went into the design and construction of this precision
device. Used properly, it will give you many years of enjoyment.

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Table of Contents
Unpacking and Placement ........................................................................ 6
Unpacking .......................................................................................................... 6
Placement .......................................................................................................... 6
Ventilation ........................................................................................................... 6
Operating Voltage ...................................................................................... 7
DAP bottom-panel label ............................................................................ 7
Special Design Features ............................................................................. 8
Superior isolation between sources .................................................................. 8
Fully balanced design ....................................................................................... 8
24 bit digital architecture and HDCD® compatibility ...................................... 8
Front Panel ................................................................................................... 9
Rear Panel .................................................................................................. 12
IR input tip polarity .................................................................................... 15
Using the DAP .............................................................................................. 17
Input Selection ................................................................................................... 17
Volume Control .................................................................................................. 17
Remote Control of the DAP ........................................................................18
Teaching DAP Front Panel Commands .......................................................... 18
Teaching Other DAP Commands ................................................................... 19
special commands table ......................................................................... 20
Care & Maintenance ................................................................................ 22
U.S. and Canadian Warranty .................................................................... 23
90-Day Limited Warranty .................................................................................. 23
Five Year Extended Warranty ........................................................................... 23
Obtaining Service ..................................................................................... 24
Specifications ............................................................................................ 25
Dimensions ................................................................................................ 26

6
Unpacking and Placement
Unpacking Unpack your Proceed®DAP digital audio processor and keep all packing mate-
rials for future transport. Locate and remove the AC power cord from the
cardboard slot it occupies within the shiping carton.
Placement Place the DAP near the source equipment, thus keeping interconnecting cables
(both digital and analog) reasonably short. It may be placed on a shelf or in a
cabinet where it’s convenient to operate.
Note that adequate clearance for the AC cord and connecting
cables must be left behind the DAP. We suggest leaving at least
three inches of free space behind the DAP to allow all cables
sufficient room to bend without crimping or undue strain.
Ventilation Be sure to allow 2 to 3 inches of clearance above the DAP to allow heat dissi-
pation through air circulation.
Mechanical drawings are included in this manual to facilitate special installa-
tions and custom cabinet work (see “Dimensions” at the end of this manual).
PRECAUTION
For your protection, review “Important Safety Instructions”
before you install your DAP.

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Operating Voltage
The DAP digital audio processor is set at the factory (internally) for 100V, 120V,
200V, 220V, or 240V AC mains operation as appropriate for the country in which
it is to be sold. (230V only in European Union countries, in compliance with CE
regulations.) Make sure that the label on the rear of the DAP indicates the correct
AC operating voltage for your location. The operating voltage cannot be changed
by the user, and any attempt to do so will void the warranty.
If the voltage indicated is incorrect relative to that supplied in your area, see your
Proceed dealer.
DAP bottom-panel label
WARNING: BEFORE ATTEMPTING TO OPERATE THIS DEVICE,
REFER TO OWNER’S MANUAL FOR PROPER OPERATING
INSTRUCTIONS AND SAFETY PRECAUTIONS. HAZARDOUS
VOLTAGE AVAILABLE INSIDE; DISCONNECT AC – MAINS
CABLE BEFORE OPENING UNIT.
designed and manufactured in USA
MADRIGAL AUDIO LABORATORIES, INC.
No User Serviceable Components Inside.
For service, contact Madrigal Audio Laboratories or an Authorized
Dealer. Any modification to this equipment will void all warranties.
dap
S/N
PR O C E E D
R

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Special Design Features
Congratulations on your purchase of the Proceed DAP. The Madrigal design
team is confident you will enjoy the outstanding performance of the DAP for
many years. In case you are interested in technical details, what follows is a
brief outline of some of the key technologies in your new processor.
Superior isolation
between sources
One of the advantages of a separate digital audio processor is that you can
take the money which might have otherwise been spent on several built-in
D/A converters and put it into one, superior processor which will enhance the
performance of all the transports with which it is used. Ironically, many out-
board processors fail to live up to this potential due to interference between
their various digital inputs.
The DAP provides outstanding isolation between its inputs, realizing the full
potential of the various digital transports with which it is used. In fact, all un-
selected digital inputs are capacitively shunted to ground upon entering the
DAP to prevent their interaction with any portion of the circuitry inside the
processor. As a result, the selected input effectively has the DAP “all to itself”
for its conversion to analog.
Fully balanced design The DAP is fully balanced in both the analog and digital domains. Even single-
ended digital inputs (anything other than the balanced aes/ebu standard) are
immediately converted to balanced signals before any further routing or pro-
cessing of the signal. All digital filtering and processing is implemented in a
balanced configuration, and conversion to analog is accomplished in two op-
posing polarity 18-bit converters per channel.
This approach maintains the integrity of the signal, reducing the opportunities
for music-destroying noise and digital artifacts to enter the signal path.
24 bit digital architecture
and HDCD®compatibility
All digital filtering and processing maintains a true 24-bit throughput capabil-
ity, providing greater digital resolution than any existing source component.
Even the most stringent requirements of professionals can easily be met with
this design.
In addition, the DAP also incorporates High Definition Compatible Digital®de-
coding to take full advantage of the increased resolution available from
HDCD®encoded 16-bit CDs. The High Definition Compatible Digital®format
retains much of the resolution inherent in professional twenty bit recordings
by encoding this information more efficiently within the sixteen bit space
available within the Compact Disc format.

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PR O C E E D
dap
power
mute
mode
polarity
2 3 4 5
6
1
Front Panel
1 POWER & POWER LED
Assuming that the DAP’s power cord is connected to AC power, pressing
this latching power button connects the DAP to the AC mains and turns
on the unit. When power is restored after an interruption, the DAP will
be in standby; pressing any button will bring it out of standby.
While the DAP is in standby, the LED above the power button is red.
When the DAP is ready to operate (that is, when it is not in standby
mode), this LED is amber. Naturally, when AC power is off, the LED is
off.
The benefits of having then DAP always warmed up and ready to go
(and able to respond to a remote control) far outweigh the small amount
of power used. We recommend unplugging the DAP only when you will
be away from the house for an extended period of time (such as during
a vacation), or during electrical storms. The DAP may be left on at all
times, or can be forced back into standby with either a remote control
command or by pressing and holding the polarity button for s few sec-
onds.
2 MAIN DISPLAY
The main display provides information pertaining to the operation of the
DAP, and is used in conjunction with the up/down buttons beside it. Nor-
mally, the main display indicates the number of the selected digital input
(1 through 5) and the sampling frequency it is currently locked on (32,
44, or 48 kHz).

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If an HDCD®recording is played, the display will flash hd and cd sev-
eral times, and then remain on hd to indicate that decoding is taking
place.
If the DAP is placed into its variable output mode, the main display will
indicate the relative volume on a scale of 0–99. (See the discussion of the
mode button, below.)
Finally, an infrared receiver and transmitter for remote control of the
DAP is positioned on the left side of the main display. Owners of learn-
ing remote controls such as those provided with Proceed preamplifiers
may transmit infrared control codes from the DAP to their learning re-
motes to “teach” the remote how to control the DAP. Subsequently, the
IR receiver in the main display will respond to the learning remote’s
commands for input selection, volume control, and certain other com-
mands. (See Remote Control of the DAP for more information.)
3 UP/DOWN BUTTONS
These up/down buttons are used to make adjustments on the DAP, in-
cluding source and volume selection. While the up/down buttons nor-
mally select the digital input (1 through 5) to be processed, they may
also be used to control the output level of the DAP. (See mode button,
below.)
4MODEBUTTON
Pressing this button toggles the DAP between input selection and vol-
ume selection modes.
Ordinarily, the DAP should be used at its maximum output level, with
volume control provided by a high quality active preamplifier which fol-
lows the DAP in the signal path. This approach provides the best sonic
performance as well as improved user convenience.
However, if for some reason a high quality active preamplifier is not
available, pressing the mode button will cause the DAP to change into its
variable output mode of operation, wherein the up/down buttons are
used to control the output level of the processor. Pressing the mode but-
ton a second time will return the DAP’s up/down buttons to their normal
input selection function.
5 MUTE
Pressing the mute button will reduce the main output level of the digital
audio processor by approximately 20 dB. Pressing the mute button a sec-
ond time will return the DAP to its previous output level. This function is
available at all times, whether the DAP is in input select or variable out-
put mode.
If you have the DAP in its variable output mode of operation and adjust
the volume with either the front panel buttons or a remote control while
in the mute mode, the digital audio processor will adjust its volume from
the muted volume and disengage the mute function. By so doing, the
DAP avoids sudden, unexpected changes in volume.