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11

Home THX Audio

System certification

Lucasfilm, Ltd.

®

 has established minimum standards for the performance of vari-

ous components which may be used in their Home THX

®

 Audio System. With

respect to power amplifiers, the standards address such things as:

• a low electrical noise floor to allow low-level information to be

fully appreciated;

• the absence of any mechanical noise (fans noise, transformer wind-

ing buzzes), for the same reason;

• adequate power to meet the demands of modern films (which can

be 

quite 

dynamic);

• flat frequency response for accurate reproduction of timbre;
• stability into relatively extreme loudspeaker loads, to ensure that

the amplifier will perform well with a wide range of loudspeakers.

As you can see from this list, there is nothing about the Home THX amplifier
specification that is particularly radical. It simply ensures a certain minimum
standard of performance. In particular, there is nothing in the nature of the
amplifier specification which prevents anyone from going above and beyond
the minimum performance levels required by THX certification.

Both the Proceed AMP 2 and AMP 3 are certified for use in Home THX audio
systems. In these products, Madrigal engineers have created powerful, versatile
and extraordinarily 

musical 

power amplifiers, using the technology and design

methodology for which they have become so well known. Equally suited to the
rigors of film soundtracks and the finesse of high end music reproduction, the
Proceed amplifier serves both needs quite well. In today’s growing market for
multi-purpose systems, they represent an extraordinary value.

Содержание AMP2

Страница 1: ...PR O C E E D AMP 2 AMP 3 Power Amplifiers...

Страница 2: ...en closure that may be of sufficient magnitude to constitute a risk of electric shock to per sons The exclamation point within an equilateral triangle is intended to alert the user to the presence of...

Страница 3: ...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 thi...

Страница 4: ...Madrigal Audio Laboratories thank you for choosing the 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...

Страница 5: ...Front Panel 12 Rear Panel 13 Remote turn on tip polarity 14 Bridged Operation 17 Bridging Explained 17 Balanced Bridging 17 Balanced Bridging Kit 17 Balanced Bridged Input Connection 18 Single Ended...

Страница 6: ...of the AMP must be kept free from any obstruction which would reduce the flow of air through the unit The best rule of thumb is this if the top of your AMP is too hot to touch when idle it needs bett...

Страница 7: ...aler AMP 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 DISCONN...

Страница 8: ...s both balanced XLR and single ended RCA inputs with a small switch between the two con nectors to select between them Using these switches select the appropriate input for each channel given your int...

Страница 9: ...ht the amplifier is either not receiving AC power or its pro tection circuitry has been engaged 7 SLOWLY RAISE THE VOLUME ON YOUR PREAMPLIFIER Congratulations Y ou should now be able to enjoy your fav...

Страница 10: ...elds an optimal environment in which the amplifier may operate to its maximum potential Balanced inputs Each channel of your AMP is individually configurable to receive either balanced or single ended...

Страница 11: ...peakers As you can see from this list there is nothing about the Home THX amplifier specification that is particularly radical It simply ensures a certain minimum standard of performance In particular...

Страница 12: ...l unit such as the PAV PRE or even the CDP Power consumption in standby mode is extremely small just a few watts for the circuitry which controls the turn on procedure Note that if the amplifier has b...

Страница 13: ...ont outputs input select channel 3 left when viewed from the front outputs input select channel 2 center when viewed from the front 1 2 3 4 5 6 7 Rear Panel Caution Turn the volume on your preamplifie...

Страница 14: ...r to the fol lowing table for replacement values AMP 2 AMP 3 100V to 120VAC 8 amp 12 amp 200V to 240VAC 4 amp 6 amp Caution ALWAYS remove the AC cord before removing the fuse 4 SPEAKER BINDING POSTS T...

Страница 15: ...that the ap propriate output pin connects to the equivalent input pin If you are planning to use balanced connections between your preamplifier and any particular channel of the AMP select the balance...

Страница 16: ...nnectors accept single ended inputs from preamplifiers with single ended RCA outputs Connect the left channel single ended outputs of your preamplifier to the left channel single ended input on the AM...

Страница 17: ...imped ance loudspeakers 8 or higher that have a greater need for voltage than for current It is not recommended for low impedance loudspeakers as the speaker s impedance is split by the two halves of...

Страница 18: ...er using a balanced input signal follow these steps 1 DISCONNECT YOUR AMPLIFIER FROM EVERYTHING Start with your amplifier totally disconnected from inputs outputs and AC power It is always best to pow...

Страница 19: ...on preserves the polarity of the signal sent to the loudspeaker In practice the most important thing is to be con sistent throughout the system as inconsistency will result in out of phase loudspeaker...

Страница 20: ...e circuit that includes the loudspeakers Important Do not attempt to operate your amplifier in a bridged mode without first strapping the black output terminals together Failure to establish a common...

Страница 21: ...RE ACROSS TWO SIDE BY SIDE RED OUTPUT TERMINALS In this case you may use either the upper or the lower red output terminals Connect the positive red binding post of your loudspeaker to the red out put...

Страница 22: ...ific to the loud speaker in question In general however biamping is done in one of two ways active biamplification or passive biamplification Active biamping refers to the presence of an active electr...

Страница 23: ...biamping illustrated above refers to the practice of using a single stereo amplifier for each loudspeaker say an AMP 2 driving each loud speaker Vertical biamping allows the amplifier to be placed ext...

Страница 24: ...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...

Страница 25: ...authorization must first be obtained by either calling or writing the factory prior to shipping the component The factory will pay for return shipping charges only in the event that the component is...

Страница 26: ...nd the Madrigal Technical Services Department locate and repair the difficulty as quickly as possible A copy of the original bill of sale will serve to verify warranty status Please include it with th...

Страница 27: ...at idle AMP 3 Mains voltage determined by the needs of country for which the unit was manufactured cannot be reset by dealer or user Overall dimensions See Dimensions Shipping weight 47 lbs 21 4 kg f...

Страница 28: ...imensions AMP 2 16 0 98 4 45 4 33 a m p 17 25 4 45 1 00 14 25 2 00 2 0 98 16 toroidal transformer toroidal transformer channel power amplifier p o w e r 0 8 0 8 0 325 0 325 L U C A S F I L M PR O C E...

Страница 29: ...AMP 3 L U C A S F I L M 0 325 0 325 a m p 3 channel power amplifier 16 0 98 4 45 4 33 17 25 4 45 1 00 14 25 2 00 0 98 16 toroidal transformer toroidal transformer toroidal transformer p o w e r 0 8 0...

Страница 30: ...n U S A PR O C E E D R is a registered trademark of Madrigal Audio Laboratories Inc a Harman International company Madrigal Audio Laboratories Inc 2081 South Main Street P O Box 781 Middletown Connect...

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