! IO LIMITED ! ! MOVING COIL CARTRIDGE AND POWER SUPPLY OWNERʼS INFORMATION !
CONTENTS ! 1) IMPORTANT SAFETY INFORMATION 2) CE DECLARATION OF CONFORMITY DISPOSAL POWER REQUIREMENTS 3) INTRODUCTION 4) OVERVIEW UNPACKING AND INSTALLATION 5) VALVE INSTALLATION 6) CONNECTION 7) OPERATION 8) TECHNICAL SPECIFICATIONS 9) WARRANTY INFORMATION 10) CONTACT INFORMATION
! IMPORTANT SAFETY INFORMATION ! RISK OF SHOCK OR ELECTROCUTION! INTERNAL OPERATING VOLTAGES ARE LETHAL! Do not remove top cover, unless specifically instructed to do so in the user manual. This unit contains fuses and other safety components in accordance with BS60065 requirements. In the event of failure, replacement fuse or safety component must be of the same part type and value. ! SUCH REPLACEMENT MUST ONLY BE CARRIED OUT BY A QUALIFIED SERVICE TECHNICIAN.
CE DECLARATION OF CONFORMITY We declare under our sole responsibility that this product is in conformity with the following standards or standardized documents: BS EN 60065 in accordance with the regulations 73/23/EEC, 89/336/EEC (from 1 January 1997) CE 94 Peter Qvortrup, Director Audio Note (UK) Limited 25 Montefiore Road Hove East Sussex BN3 1RD United Kingdom Tel: Fax: +44 (0)1273 220 511 +44 (0)1273 731 498 ! DISPOSAL This product must not be disposed of as normal household waste.
INTRODUCTION Thank you for purchasing this Audio Note (UK) product. With the correct care it should give you many years of pleasure and enjoyment. Please take the time to read all of the information in this manual before connecting your new component to an electrical supply or your system, to ensure both your safety and satisfaction. Please note that due to our desire to continually improve products, specifications are subject to change without notice.
IO LIMITED MOVING COIL CARTRIDGE Congratulations on your purchase of the Audio Note (UK) IO Limited Moving Coil cartridge. It is, without question, the finest and most technically significant Moving Coil cartridge available today. No other cartridge offers such an unparalleled combination of hitherto unknown performance, information retrieval, dynamic contrast, tonal accuracy and sheer musical enjoyment.
IO LIMITED MOVING COIL CARTRIDGE Magnetic circuit Once the mechanical assembly had been perfected the next area to which particular attention was paid was the magnetic circuit. From numerous tests carried out on a variety of materials and configurations, it was established that different types of magnetic materials exert a subtle influence on the perceived quality of the final sound. After further extensive research the optimal magnetic circuit was found to be electro magnetically generated.
IO LIMITED MOVING COIL CARTRIDGE Damping As mentioned above, damping of the cantilever is extremely critical. Too much and the cartridge will sound dull, as a large amount of the critical energy from the record will be absorbed in the damper instead of reaching the coils, reducing the efficiency of the energy transfer from the record (as vibrational energy) to the cartridge (as electrical energy).
UNPACKING AND INSTALLATION Please take care when unpacking your IO Limited. Choose a clean, clear location to unpack your cartridge. We recommend that you retain and carefully store all of the original packing materials, in case transportation / shipping is required at a later date. Open the wooden transit box. You will see that the cartridge is mounted on a wooden insert for protection during shipping.
IO LIMITED INSTALLATION It is often easier to connect the tonearm wires to the connection pins located at the rear of the cartridge body before it is mounted in the head-shell. The pins are colour coded according to the International Standard Colour Code.
IO LIMITED INSTALLATION continued… UNDER NO CIRCUMSTANCES SHOULD THE HEAD-SHELL WIRES BE SOLDERED DIRECTLY TO THE CONNECTION PINS OF THE CARTRIDGE BODY. HEAT APPLIED TO THE CONNECTION PINS WILL CAUSE IRREPARABLE DAMAGE. The cartridge body is equipped with threaded holes, to make the mounting procedure easier and more secure. They are spaced 12.7mm apart, (across the width of the cartridge body) which is the industry standard distance.
IO LIMITED INSTALLATION continued… To achieve correct cartridge alignment, it will be necessary to use the alignment protractor provided with your tonearm. If in doubt, contact your tonearm manufacturer, or contact you Audio Note (UK) dealer, who will be able to advise you. It is also important to make sure that the top surface of the cartridge is mounted parallel to the surface of the record, when viewed from the front and side.
IO LIMITED PSU INITIAL SET UP WE STRONGLY RECOMMEND THE INITIAL IO LIMITED POWER SUPPLY INSTALLATION AND SET UP SHOULD BE CARRIED OUT BY AN APPOINTED AUDIO NOTE (UK) DEALER. IRREPARABLE DAMAGE NOT COVERED UNDER WARRANTY MAY BE CAUSED TO THE CARTRIDGE AND POWER SUPPLY BY INCORRECT INITIAL SET UP. Once all cartridge connections have been made, the operating voltage for the cartridge can be set. ENSURE THE ʻCARTRIDGEʼ SWITCH IS IN THE ʻOFFʼ POSITION (TURNED ANTICLOCKWISE / LEFT).
OPERATION Once the initial power supply unit set up has been completed and the IO Limited has been correctly installed in your tonearm, you are ready to begin operation. Mains On This switch is used to turn the Power Supply Unit on, and is located on the right hand side of the front fascia. Turn the switch clockwise / right. The red ʻpowerʼ LED situated below the ʻMains Onʼ switch should glow RED. THE POWER SUPPLY UNIT SHOULD BE SWITCHED OFF WHEN NOT IN USE FOR AN EXTENDED PERIOD (MORE THAN A FEW DAYS).
OPERATION Continued… Cleaning No special maintenance is required for the power supply unit. Use a soft, clean lint free cloth to remove any surface marks from the casework. For finger marks / grease, use a soft, clean lint free cloth, lightly moistened with a solution of warm water and mild detergent. Do not use any alcohol or solvent based cleaning products, as they may damage the finish of the amplifier.
TECHNICAL SPECIFICATIONS OUTPUT VOLTAGE 0.04mV / 5cm / sec INTERNAL IMPEDANCE 1 Ohm MATCHING IMPEDANCE 3 – 4 Ohms FREQUENCY RANGE 10 – 50KHz, +/- 2dB (dynamic test) SEPARATION Greater than 30dB at 1KHz COMPLIANCE (TYPICAL) Horizontal 10 Vertical 15 MAGNETIC FIELD STRENGTH Electromagnetic 1,200 Gauss WEIGHT 19g STYLUS PRESSURE 1.5 – 4g 2.5g optimal POWER SUPPLY OUTPUT VOLTAGE 0.4A, 1.
WARRANTY INFORMATION Audio Note (UK) warrants this product to be free from defects in materials and workmanship for two years from the original date of purchase from an appointed Audio Note (UK) dealer, and agrees to cover the cost of parts and associated labour required to correct such defects, subject to terms & conditions. This Warranty is offered to the first purchaser only. Any valves supplied with the unit are warranted for three months from the original date of purchase.
CONTACT INFORMATION If in the future your Audio Note (UK) product requires servicing, or if you require technical support or have any questions regarding this or any of our other products, please contact your local Audio Note (UK) dealer. Alternatively, please feel free to contact us directly: -! Audio Note (UK) Limited 25 Montefiore Road Hove East Sussex BN3 1RD United Kingdom Tel: +44 (0)1273 220 511 Fax: +44 (0)1273 731 498 e-mail: info@audionote.co.
