BPA 2 & BPA 3 Power Amplifiers
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. 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.
Important Safety Instructions Please read all instructions and precautions carefully and completely before operating your Proceed power amplifier. 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.
From all of us at Madrigal Audio Laboratories, thank you for choosing this Proceed power amplifier. 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.
Table of Contents Unpacking and Placement ........................................................................ 6 Unpacking .......................................................................................................... 6 Placement .......................................................................................................... 6 Ventilation ........................................................................................................... 6 Operating Voltage ................
Unpacking and Placement Unpacking Unpack your Proceed® BPA 2 or BPA 3 power amplifier and keep all packing materials for future transport. Shipment of the amplifier without the original packing material is not recommended. Locate and remove the heavy gauge AC power cord, which is tucked into a cardboard slot within the box. Placement Your Proceed BPA may be placed either near the preamplifier/control center or near the loudspeakers.
Operating Voltage The Proceed BPA 2 and BPA 3 are factory-set for 100V, 120V, 220V, 230 or 240V AC mains operation at either 50 or 60Hz, according to the country for which the unit was manufactured. (230V only in European Union countries, in compliance with CE regulations.) Make sure that the label on the rear of the BPA 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.
A Quick Start We recognize that many people are understandably eager to begin listening to their new components, and that reading the manual is often done (if at all) at a later time—perhaps while listening to music through the new product itself. We strongly recommend that you read this manual thoroughly. Fortunately, we can help you get some music up and running on your system quickly, so that you may begin enjoying your new amplifier while reading more about it.
7 SLOWLY RAISE THE VOLUME ON YOUR PREAMPLIFIER Congratulations! You should now be able to enjoy your favorite music while reading the rest of this manual. (Please, do read the rest of this manual. It contains much valuable information about your new amplifier which we could not possibly fit onto these two pages.
Special Design Features Congratulations on your purchase of a Proceed BPA! While your new amplifier is straightforward in its use, it includes several design features which are responsible for its outstanding performance. A few of these are given below. Multiple monaural design Consistent with the finest amplifiers, your Proceed BPA is a true “multiple monaural” design. Each audio channel has its own, dedicated power supply—including a separate 300VA toroidal transformer for each channel.
Front Panel 1 POWER BUTTON Pressing the latching power button connects the amplifier to the AC mains, turning it on. Power consumption when fully on and at idle is approximately 140 watts for the BPA 2 and 210 watts for the BPA 3. At your option, you may also toggle the BPA between a standby mode and fully on by connecting its remote turn on jack to the corresponding remote turn on output on a Proceed control unit such as the AVP.
be used. When the indicator light is glowing red, the unit is in standby (see 1 above). If the indicator light is completely off, the amplifier is not receiving power. Check your AC connections and the rear-panel AC fuse.
Rear Panel Caution! Turn the volume on your preamplifier all the way down before attempting to connect anything to your Proceed BPA 2 or BPA 3. 1 Warning! AC MAINS RECEPTACLE Connect the AC power cord (included in the accessory pack) to the I.E.C.standard AC receptacle on the rear panel of the BPA, then to the AC mains outlet. The Proceed BPA has been safety-tested and is designed for operation with a three-conductor power cord. Do not defeat the “third pin” or earth ground of the AC power cord.
Remote turn-on tip polarity Your Proceed dealer can help you take advantage of these design features to maximize your system’s versatility. 3 AC MAINS FUSE One fast-blow fuse is located on the rear panel of the BPA. If it should become necessary, replace the fuse with the same type only. Refer to the following table for replacement values.
5 BALANCED AUDIO INPUTS Accepts right-channel and left-channel signals from preamplifiers with balanced outputs via high quality XLR connectors. The pin assignments of these XLR-type female input connectors are: Pin 1: Signal ground Pin 2: Signal + (non-inverting) Pin 3: Signal – (inverting) Connector ground lug: chassis ground These pin assignments are consistent with the standards adopted by the Audio Engineering Society.
Care & Maintenance To remove dust from the cabinet of your amplifier, use a feather duster or a lintfree soft cloth. To remove dirt and fingerprints, we recommend isopropyl alcohol and a soft cloth. Dampen the cloth with alcohol first and then lightly clean the surface of the amplifier with the cloth. Do not use excessive amounts of alcohol that might drip off the cloth and into the amplifier.
U.S. and Canadian Warranty 90-Day Limited Warranty This Proceed® product is warranted to be free from defects in material and workmanship under normal use for a period of ninety (90) days from the date of purchase. To extend the warranty of this Proceed product, return the warranty registration card along with a copy of the original receipt of purchase to Madrigal Audio Laboratories, Inc., P. O. Box 781, Middletown, CT 06457.
Obtaining Service We take great pride in our dealers. Experience, dedication, and integrity make these professionals ideally suited to assist with our customers’ service needs. If your Proceed component must be serviced, please contact your dealer. Your dealer will then decide whether the problem can be remedied locally, or whether to contact Madrigal for further service information or parts, or to obtain a Return Authorization.
Specifications The correlation between published specifications and performance is unreliable. A list of numbers reveals virtually nothing. All technical measurements must be subject to qualitative as well as quantitative interpretation. Measurements of the Proceed BPA yield excellent results by any standards. However, only those specifications that apply to its actual operation are included here. All specifications are subject to change at any time, in order to improve the product.
Dimensions: BPA 2 & BPA 3 (Note that the BPA 2 and the BPA 3 have the same external dimensions. The BPA 3 is shown below.) 17.26" 43.84 cm triple monaural amplifier power 5.25" 13.3 cm HPA 17.61" 44.73 cm 0.695" 1.77 cm 15.47" 39.29 cm 19.55" 49.66 cm 1.40" 3.56 cm 16.87" 42.85 cm b R PR O C E E D BPA3 made in u.s.a.
Rack Mounting If you need or prefer to rack mount your amplifier, contact your Proceed dealer about the optional rack mount kit. This purpose-designed assembly provides the needed ventilation for the heatsink “chimneys” of the amplifier as well as the support required for this heavy component.
m Madrigal Audio Laboratories, Inc. 2081 South Main Street, P.O. Box 781 Middletown, Connecticut 06457 USA Telephone: (860) 346-0896 Fax: (860) 346-1540 http://www.madrigal.com/ PR O C E E D R is a registered trademark of Madrigal Audio Laboratories, Inc. a Harman International company 630365 © 5/1999 Madrigal Audio Laboratories, Inc. All rights reserved. Printed in U.S.A.
