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1. Introduction
Thank you for your purchase of Carot One FABRIZIOLO Audiophile Stereo
Tube Preamplifier.
Carot
One
introduces
FABRIZIOLO providing high quality amplification of your audio source. Our
special techniques in circuit design and component selection, FABRIZIOLO
achieves the sound quality of high-end Hi Fi but in a very affordable price.
2. Features
Compact design (mini-size & light weight), easy portable and setup
An AC adaptor is bundled for continuous power supply.
Separated preamplifier & AC adaptor design to minimize mutual
interference and flexible to apply other power sources, e.g. lead-acid
battery.
Standard audio and speaker sockets compatible with most audiophile
quality cables.
Audiophile-graded parts and components
The stylish & specially-plated aluminum case provides not only
good-looking, and also provides outstanding shielding capability.
the
mini-size
audiophile
- 3 -
stereo
preamplifier
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Summary of Contents for Carot One FABRIZIOLO
- Page 1 1. Introduction Thank you for your purchase of Carot One FABRIZIOLO Audiophile Stereo Tube Preamplifier. Carot introduces mini-size audiophile stereo preamplifier FABRIZIOLO providing high quality amplification of your audio source. Our special techniques in circuit design and component selection, FABRIZIOLO achieves the sound quality of high-end Hi Fi but in a very affordable price.
- Page 2 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.
- Page 3 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.
- Page 4 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.
- Page 5 3. Overview 1. Volume Controller and Pre-Amp Power On/Off. 2. 3.5mm AUX input socket for MP3, etc. (over-ride rear input) 3. 3.5mm Headphone socket WARNING: When plug in your headphone or MP3 into the mini jack (2 and 3), always plug in a vertical way.
- Page 6 4. Power Supply Socket; Plug the bundled AC Adaptor to this socket to supply power to this amplifier. 5. Audio signal line output. 6. Audio input. The audio signal input (LEFT/RIGHT) connects from audio source (e.g. CD player) to the amplifier by the RCA audio cable. 7.
- Page 7 3.1 Connection FABRIZIOLO is easy to use product. Simply connect your source (CD player, MP3 player, etc..) and amplifier / headphone following below steps, you can enjoy the high quality music in a second: Connect “Line Out” mini socket (5) to the “Line In” of your amplifier using the supplied mini jack to RCA audio cable.
- Page 8 4. Specifications 4.1 Specification of the Headphone Amplifier Unit Signal-to-Noise Ratio (SNR) 92dB Power Output 3.0 Watts per channel on 33 Ohm Headphone Frequency response 15 Hz - 100 kHz -1db Input Impedance 10k Ohms Input Audio CD IN RCA (Left/Right) x 1 [3Vpp max.] 4.2 Specification of the Pre Amplifier Unit Vacuum Tube 6DJ8/6922 series or 12AU7 series...
- Page 9 4.3 Specification of the AC Adaptor AC Input Universal AC 100V-240V/50-60Hz DC Output DC 12V 3.5A (42W) DC Plug DC 2.1mm Ripple & Noise <= 25mV Over-load Protection 105%-150% Over-voltage Protection 115%-150% Dimensions (L)78mm x (W)50mm x (H)33mm - 11 -...
- Page 10 5. Technical Notes (for professional user only) Carot One has already pre-set the jumpers and fine-tuned the DC bias voltage of each FABRIZIOLO 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 FABRIZIOLO.
- Page 11 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 (P1, P2) for tuning the DC bias voltage of each channel.
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Page 12: Troubleshooting
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... - Page 13 . 3.5MM to RCA jumper cable x 1 . Tube x1 . +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 -...