Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Matthew James CELLO Chorale
Summary of Contents for Matthew James CELLO Chorale
- Page 1 Cello Chorale preamplifier Owners manual...
- Page 2 Your Chorale has been individually made, entirely by hand, from the finest parts and materials available. The Chorale utilizes proprietary circuitry and processes, developed by matthew James’ Showroom, l.l.C., that represent true state of the art in audio electronics. The Chorale contains the most recent thinking in analog interface circuitry.
- Page 3 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS COMPONENT TO RAIN OR MOISTURE. RISK OF ELECTRICAL 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.
-
Page 4: Product Concept And Description
James is really continuing a very old, traditional approach used by artisans for hundreds of years. The justification for a great music system is the same as for a great instrument: it makes possible a musical experience that cannot be duplicated by lesser means. - Page 5 The second level is a second motherboard that contains precision parts and circuit wiring. The active circuitry is built on individual boards that make up the third level of circuitry and mount on standoffs made from extremely pure copper flashed with silver through which the signal flows to and from the various boards.
- Page 6 To reproduce music faithfully and exquisitely requires nothing less than the very best audio equipment. each product from matthew James is a blend of proven principles from the past and new technological understandings. Something new is added only if it proves meaningful in performance.
-
Page 7: Installation
Installation Be certain that the Chorale preamplifier and master power supply are installed so that they have proper ventilation. The ambient temperature should not exceed 122 degrees f (50 degrees C). Check to make certain that the master power supply is set to be used at the voltage available in your installation. - Page 8 The balanced output contains four individual, discrete amplifiers for the plus and minus signals for each channel, providing Class a, symmetrical output to drive power amplifiers with balanced inputs. There are also two pairs of fixed outputs, both via rCa connectors. These can be connected to the input of a recording device, or as an input to an audio processor, or to another system.
- Page 9 Cello volume control has set the standard for sonic excellence, reliability, and precision tracking. matthew James’ Showroom has changed the contact material of the wiper in this control from what was used previously to a silver alloy that contains 10% gold and 10% platinum developed for guidance systems for military hardware and satellite communications.
- Page 10 This preamplifier has been set to 0dB of gain in the balanced input section and is provided with 10kohms loading for both the + input impedance and the – input impedance of this signal. This is how most users will connect a source with a balanced signal to perform to its full potential with the Chorale.
-
Page 11: Maintenance
James’ Showroom will not pay freight costs if the unit is returned without a return au- thorization Number (ra#). matthew James’ Showroom will not pay the freight if the unit is found to be in working order. There is no reason to register your warranty. it is done so automatically by the factory. We respect owner’s privacy and don’t try to gather information without the owner’s knowledge and consent. -
Page 12: Specifications
James’ Showroom, will result in the voiding of the warranty. There are no user serviceable parts inside the Chorale nor the master. any changes should be made by matthew James’... - Page 13 Typical measurements are -61.6dB for the + output. Typical measurements are -61.7dB for the - output. it is matthew James’ hope that the Chorale preamplifier and master power supply provide evidence of our desire to develop products that are responsive to the audio requirements of...
- Page 14 Making Changes to the Phono and Balanced Input Settings The chasses of the Chorale preamp and master power supply are manufactured with heavy aluminum plates on all six sides. in order to reduce the deleterious effects of vibration, each individual piece is securely connected to those pieces adjacent. however, the tops/faces/sides assembly connects to the bottom/back assembly, and so the tops/faces/sides assembly needs to be removed from the bottom/back assembly in order to access the internal switches.
-
Page 15: Balanced Input
BALANCED INPUT: There is one switch for each left and right channel in the balanced input section, with two on/ off rockers each, mounted to motherboard two, inside the Chorale at the left rear. This switch is labeled, on motherboard 2, as SW3. When a balanced line level source signal is connected to the Balanced input (Xlr to Xlr connectors on the cable) of the Chorale, a 10kohms load for both the + input impedance and the –... - Page 16 Cello products are designed and built by hand in Connecticut, USa by matthew James’ Showroom, l.l.C. 84 long hill road middlefield, CT 06455 phone 860 349-5999 email jimm@matthew-james.net...