Table of Contents
Related Manuals for Atma-Sphere MP-1 Mk II
Summary of Contents for Atma-Sphere MP-1 Mk II
- Page 1 Atma-Sphere Music Systems St. Paul, MN 55105 Phone: 651-690-2246 FAX: 651-699-1175 http://www.atma-sphere.com ATMA-SPHERE® MUSIC PREAMPLIFIER Model MP-1 Mk II OWNER'S MANUAL Please study this document carefully before using equipment...
- Page 2 Every part of the preamplifier has been extensively tested and engineered so the product will perform flawlessly for years to come, with little if any service. Please read the manual carefully and follow the instructions closely. If you have any questions, do not hesitate to contact your dealer or ATMA-SPHERE®...
-
Page 3: What Is Covered
ATMA-SPHERE® MUSIC SYSTEMS, 160 So. Wheeler St., St. Paul, Minn. 55105. You must pay the initial shipping charges, but ATMA-SPHERE® MUSIC SYSTEMS will pay the return charges, if the repairs are covered by the warranty. All products MUST be shipped in the original carton(s) or in replacement cartons supplied by ATMA-SPHERE®... -
Page 4: Operating Notes
Unpack the preamplifier and its power supply carefully and save the packaging containers for future shipment if required. Warranty may be void if the unit is shipped in a different container. If you do not have a container, contact ATMA-SPHERE® MUSIC SYSTEMS for a replacement. The replacement container is $30.00. - Page 5 Almost all phonograph cartridges are balanced sources. Thus the MP-1 allows you to set up your turntable as a fully-balanced source, with considerable sonic advantage. For best results, follow the connection scheme outlined below: 1) Use a cable that has two signal conductors PLUS a shield for each channel. The two conductors are for the plus and minus outputs of the cartridge, and the shield connection becomes the tone arm/turntable ground connection and is common to BOTH channels.
- Page 6 MP-1 tube locations 8/98...
- Page 7 NOTES ON TUBES 1) The 12AT7s in the upper left of each board are the most critical for low noise phono operation. 2) The constant current sources are outside of the signal path. 3) Matched sections in the frontmost 6SN7 of the preamp will reduce noise during operation of the front panel GAIN TRIM...
-
Page 8: Troubleshooting Tips
NEVER, EVER, USE TWEEK® ON TUBE SOCKETS! Tweek® is an organic compound and is capable of forming resistance paths if it breaks down. If none of these suggestions help, please contact your dealer or ATMA-SPHERE® MUSIC SYSTEMS. MORE TIPS AND TWEAKS When ordering from any source, specify tubes for a differential circuit (matched tube sections). - Page 10 NOTES...
-
Page 11: Warranty Registration Form
WARRANTY REGISTRATION FORM IMPORTANT: This form must be filled out and returned to ATMA-SPHERE® MUSIC SYSTEMS within 10 days of purchase to validate the warranty! Please type or print clearly. ___________________________________________________________________________ NAME _________________________________________________________________________ Address ________________________________________ __________ ____________ City or town...
Need help?
Do you have a question about the MP-1 Mk II and is the answer not in the manual?
Questions and answers