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Details about  Crown Macro Reference 1 Stereo Vintage Audio - Bass Electric Guitar Amplifier

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Crown Macro Reference 1 Stereo Vintage Audio - Bass Electric Guitar Amplifier
Crown-Macro-Reference-1-Stereo-Vintage-Audio-Bass-Electric-Guitar-Amplifier
Item Ended
Item condition:
Used
Ended:
Jun 18, 2012
Starting bid:
US $1,895.00
0 bids ]
Shipping:
$58.42 Standard Shipping | See details
Item location:
New Milford, NJ, United States

Description

eBay item number:
180902262848
Seller assumes all responsibility for this listing.

Item specifics

Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
Type: Audio guitar stereo amplifier
Brand:

Crown

Number of Channels: 2
Model:

Macro Reference 1

Crown Macro Reference 1 Stereo or Guitar Amplifier List $4,600 & $600 Cable

It is well known among audiophiles, that this amplifier design made Crown a leader of amp manufacturers for the recording industry. Audiophiles found that bipolar transistors with their ability to carry current coupled with a massive combination power input – output toroid transformer made this amp the benchmark of iconic bass amps. With their patented circuit design and their digital attenuators gave this amp tremendous flexibility for bi-amplified audio systems. Therefore, audiophiles who want tubes for the mids and high frequencies now can match the desired bass output providing that the rest of the system can be bi-wired and bi- amplified.

It should be noted that one of the main characteristics of what makes a good sounding amp is the voltage swing. A conventional tube amp has the ability of producing 500 – 600V’s with a 6550 tube or 1200V’s with a 845 output tube while the best of the transistor amps is only capable of 200V’s therefore, a transistor amp can never sound like a tube amp with air and body but a transistor amp has one characteristic that make them desirable and that is: bi-polar transistors can carry current which bass drivers require.

In the world of high-end audio, there is a saying: 1 + 1 = 3 for bi-amplified systems, and 1 + 1 + 1 = 5 for tri-amplified systems because you are distributing the speaker loads with either 4 mono block amplifiers or 6 mono block amplifiers (2 or 3 stereo amps respectively) instead of making 1 stereo amps drive the entire frequency range of amplification. As a result everything becomes more transparent; more dynamic and more defined in sound. As an analogy, it is like looking through a pair of binoculars when you focus the image, you see clear define images with a deep of field within the scene when they are in focus; the same thing is true with sound; in example: you can always tell the difference between live music and a transistor radios and those systems that are compromised.

These same principles have evolved one step further by ridding the passive or active crossover network distortions in speakers such as phase error; inductor resistant; capacitor error, and mismatched driver efficiencies etc. These improvements are not easy things to correct, because you will need an audio - computer engineer with an electrical background who knows how to use a spectrum analyzer to calibrate all the components in the system. With these new types of computer frequency control processors, you can direct drive, and/or control each driver independently within each speaker with its own mono block amplifier, but this requires an audio computer digital processor & control unit as well as a computer, and knowledge of the computer program to adjust the: frequency; slope; driver distortion, and output & input efficiencies for each amp and driver. According to the audio-electrical engineer I spoke to, these types of systems have been used in the recording industry and concert scene for the past 12 –15 years. It is also this reason why Cabasse the French speaker manufacturer who has received acclaim as the best in the audio show award. This award was due to the driver controlled computer processor system that made their innovative designs sound so good in their audio speaker exhibit.

 

Amplifier condition – working

 

·         Slight dent on front plastic grill plate, see photos.

·         Manual

·         Factory upgraded Cardas solid copper speaker terminal posts

·         Sonic accuracy is just one of the advantages of the Studio Reference as the patented ODEP® circuits detect and compensate for any demanding load condition. THX® certified.

·         Included in this auction is: Neutrik silver contact phone plug and silver – gold plated interconnect wire with WBT silver RCA jacket (list $600).

·         Inside circuit board has been repaired by Crown and guarantee

      Phone jacket inputs for guitar or audio - stereo applications

 

Specifications for REFERENCE 1:

 

Power output: 800 watts into 8 ohms, 1,190 watts into 4 ohms (per channel, stereo mode); 2,375 watts into 8 ohms (bridge-mono mode) Input connections: Balanced 1/4" phone jacks on chassis and female XLR connectors on standard PIP module Output connections: A pair of color-coded dual binding posts for each channel Dimensions: 19" W x 7" H x 16" D (4 rack spaces) Net weight: 60.69 lbs. Power requirements: 120 VAC, 60 Hz - Includes 10 AWG power cord with a special NEMA TT30P plug and matching receptacle.

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