Table of Contents 1. INTRODUCTION 2. FEATURES. 3. OVERVIEW. 3.1 Connection 3.2 Operation 4. SPECIFICATIONS 4.1 Specification of the Headphone Amplifier Unit 4.2 Specification of the Pre Amplifier Unit 4.3 Specification of the AC Adaptor 5. TECHNICAL NOTES (For professional user ONLY) 5.1 DC Bias Voltage Tuning 6.
1. Introduction Thank you for your purchase of Carot One FABRIZIOLO 30K Limited Tube Preamplifier. Carot introduced mini-size audiophile stereo preamplifier FABRIZIOLO a few years ago. Thanks for its popularity, we decided to further improve the circuitry and upgrade most components to build our Limited Edition, the FABRIZIOLO 30K.
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Safety Guidelines Important safety instructions This product is designed and manufactured to meet strict quality and safety standards. However, you should be aware of the following installation and operation precautions. 1. Take heed of warnings and instructions You should read all the safety and operating instructions before operating this equipment.
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7. Climate The equipment has been designed for use in moderate climates and in domestic situations. 8. Cleaning Unplug the unit from the mains supply before cleaning. The case should normally only require a wipe with a soft, lint-free cloth. Do not use chemical solvents for cleaning.
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15. Damage requiring service The equipment should be serviced by qualified service personnel when: the power-supply cord or the plug has been damaged, or objects have fallen, or liquid has spilled into the equipment, or the equipment has been exposed to rain, or the equipment does not appear to operate normally or exhibits a marked change in performance, or the equipment has been dropped or the enclosure damaged.
3. Overview 1. Volume Controller and Power On/Off 2. 3.5mm Headphone socket 3. 3.5mm AUX input socket. Connect your Smartphone to the amplifier using the provided mini-RCA cable (this input over-rides rear input) WARNING: When plug in the supplied mini jack cable or your headphone to (2) or (3), always plug in a vertical way.
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4. Power supply Socket; Plug the bundled AC Adaptor to this socket to supply power to this amplifier. 5. Audio output. Connect this output to your power amplifier 6. Audio input. The audio signal input (LEFT/RIGHT) connects from audio source (e.g. CD player) to the amplifier by a RCA audio cable (not provided).
3.1 Connection Carot-One FABRIZIOLO 30k is easy to use product. Simply follow below steps, you can enjoy the high quality music in a second: Connect your CD player or other audio source to the “Line in” RCA socket (6) using normal RCA audio cable (not included).
4. Specifications 4.1 Specification of the Headphone Amplifier Unit Signal-to-Noise Ratio (SNR) 92dB Power Output 600mW / channel on 32 Ohm headphone Frequency response 15Hz – 100kHz -1dB Input Impedance 10k Ohms Input Audio CD in RCA (L/R) x 1 [3Vpp max.] 4.2 Specification of the Pre Amplifier Unit Vacuum Tube 6DJ8/6922 series or 12AU7 series...
4.3 Specification of the AC Adaptor AC Input Universal AC 100V-240V/50-60Hz DC Output DC 12V 5A(60W) DC Plug DC 2.1mm Ripple & Noise <= 25mV Over-load Protection 105%-150% Over-voltage Protection 115%-150% - 11-...
5. Technical Notes (for professional user only) Carot One has already pre-set the jumpers and fine-tuned the DC bias voltage of each ERNESTOLO 50K with the packaged vacuum tube before shipping. However, changing different tubes to taste for different sound is the great fun for many audiophiles and also a great feature of ERNESTOLO 50K.
5.1 DC Bias Voltage Tuning Since each tube might derivate a bit in parameters, especially from different series, it needs to re-tune the DC bias voltages to guarantee the machine is working in the best point and performing the best sound quality. There are two blue precise adjustable potentiometers (RP1, RP2) for tuning the DC bias voltage of each channel.
6 Troubleshooting If your machine is out of order, it may not be very serious. Before you call your local distributor or us to repair, you are suggested to check the following: SYMPTOM POSSIBLE CAUSE REMEDY cannot power ON power cords not properly properly connect indicator not bright...
. 3.5MM to 2 x RCA connection cable x 1 . Power cable x 1 . 12V power supply x 1 . User Guide x 1 Carot One OPENITEM ITALIA is WORLDWIDE DISTRIBUTOR of Website: www.carotone.it Email: info@carotone.it - END -...