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Summary of Contents for Aesthetix Io PHONO STAGE
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Page 1: Phono Stage
PHONO STAGE OWNER'S MANUAL Aesthetix Audio Corporation 5220 Gabbert Rd., Suite A ♦ Moorpark, CA. 93021 Phone: (805) 529-9901... - Page 2 INTRODUCTION Thank you for purchasing the Io Phono Stage. It has been engineered to deliver the highest attainable sound quality from your turntable. Only the highest grade electronic components are used in the Io, including: non-inductive wirewound resistors in the signal path; polystyrene, polypropylene, and Nichicon electrolytic power supply, bypass, and signal capacitors;...
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Page 3: Input Impedance
CONFIGURATION THE FOLLOWING PROCEDURES SHOULD ONLY BE ATTEMPTED WITH THE POWER CORD DISCONNECTED. INPUT IMPEDANCE: Note: If 47K ohms is the desired input impedance, the unit comes factory configured for this setting. The following instructions may be skipped. The input impedance of Io may be configured to virtually any useful value. On the back panel of the main unit, locate the section labeled “INPUT IMPEDANCE”. -
Page 4: Gain Adjustment
GAIN ADJUSTMENT: Important note: Io with volume controls has no internal gain adjustment. Use volume controls. 1. Ensure that the power cord is disconnected from the Io preamp. 2. To ensure proper capacitor discharge, wait a minimum of 20 minutes before removing top cover. - Page 5 Figure 3: Io Preamp Circuit board (1 of 2)
- Page 6 CONNECTIONS CAUTION: It is vitally important that you do NOT disconnect the umbilical cables (between the power supply and main unit) for AT LEAST 15 MINUTES AFTER TURNING OFF THE MAIN POWER SWITCH and removing the AC cord from the power supply. Note: Never connect power supply's power cord to a wall outlet while umbilical cables are disconnected.
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Page 7: Operation
OPERATION *Ensure linestage/preamp and/or power amp are properly muted to prevent possible damage to speakers. A. Turn power on. B. Wait at least fifteen minutes for power supplies to fully stabilize before unmuting preamp. C. Begin playing record. D. If the optional second input is installed, before switching inputs mute the preamp. E. -
Page 8: Technical Description
TECHNICAL DESCRIPTION NOTE: The following is a detailed technical description of the circuitry employed in the Io. It is intended for technically inclined readers for informational purposes only. The Io comprises two separate units, the phono stage itself and the power supply unit. The units are connected together via two detachable umbilical cords. - Page 9 Io phono stage vacuum tube locations Back of left channel circuit board Back of right channel circuit board First gain stage First gain stage 12AX7LP or 12AX7LP or E83CCS E83CCS E83CCS 6922 6922 Output stage Output stage Second gain stage...
- Page 10 Aesthetix. The product must be packed and returned to Aesthetix by the customer at his or her sole expense. A returned product must be accompanied by a written description of the defect and a photocopy of the original purchase receipt. This receipt must clearly list model and serial number, the date of purchase, the name and address of the purchaser and authorized dealer and the purchase price.
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