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Carot One Ernestolone User Manual

Audiophile class d tube amplifier with 24/96 dac
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ERNESTOLONE Audiophile Class D Tube Amplifier
with 24/96 DAC

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Summary of Contents for Carot One Ernestolone

  • Page 1 ERNESTOLONE Audiophile Class D Tube Amplifier with 24/96 DAC...

  • Page 2: Table Of Contents

    Table of Contents 1. INTRODUCTION 2. FEATURES. 3. OVERVIEW. Connection Operation 3.2.1 Selecting USB input 4. SPECIFICATIONS 4.1 Specification of the Amplifier Unit 4.2 Specification of the Headphone Amplifier Unit 4.3 Specification of the PC USB 4.4 Specification of the Pre Amplifier Unit 4.5 Specification of the AC Adaptor 5.

  • Page 3: Introduction

    2 x 25W output with the bundled AC power supply unit. With our special techniques in circuit design and component selection, ERNESTOLONE achieves the sound quality of high-end Hi Fi but in a very affordable price. 2. Features ...
  • Page 4 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 5 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 6 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 7: Overview

    3. Overview 1. Volume Controller and Power On/Off. 2. 3.5mm AUX input socket for MP3, etc. (over-ride rear input) 3. 3.5mm Headphone socket 4. Input selector 5. Power Indicator WARNING: When plug in your headphone or MP3 into the mini jack (2 and 3), always plug in a vertical way.
  • Page 8 7. Pre-amplifier audio signal line output, you can connect to external amplifier using this output. Once connected, amplifier of ERNESTOLONE will be overrided. 8. USB input from PC (use supplied USB cable) 9. Speaker Output (Binding Post) 10. Amplifier audio signal line in.

  • Page 9: Connection

    Please follow the below steps such that you can enjoy the product without any difficulty: Turn the “Volume controller” (1) clockwise to turn on your ERNESTOLONE. Now the vacuum tube (12) will slowly turn on and you will see blue light from the top window.

  • Page 10: Selecting Usb Input

    3.2.1 Selecting USB input Once your USB cable is connected to ERNESTOLONE, you will see below screen from your PC / laptop: After your device is installed, you will find ERNESTOLONE in your playback device as below, and your USB is ready for use.

  • Page 11: Specifications

    4. Specifications 4.1 Specification of the Power Amplifier Unit Output Power 2x25W @4ohm 2x12W @8ohm(RMS) Signal-to-Noise Ratio (SNR) 98dB Dynamic Range 98dB THD+Noise Audiophile Quality 0.03% @ 9W 4Ohm 0.15% @ 8W 4Ohm 0.11% @ 6W 8Ohm High Power 10% @ 15W 4Ohm 10% @ 10W 4Ohm Input Audio IN RCA (Left/Right) x 1...

  • Page 12: Specification Of The Pre Amplifier Unit

    4.4 Specification of the Pre Amplifier Unit Vacuum Tube 6DJ8/6922 series or 12AU7 series (exchangeable) Signal-to-Noise Ratio (SNR) 92dB THD + Noise 0.05% @ 10k ohm 0.15% @ 33 ohm Input Audio CD IN RCA (Left/Right) x 1 [3Vpp max.] Output Audio OUT 3.5mm x 1 Headphone...

  • Page 13: Technical Notes (For Professional User Only)

    5. Technical Notes (for professional user only) Carot One has already pre-set the jumpers and fine-tuned the DC bias voltage of each ERNESTOLONE 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 ERNESTOLONE.

  • Page 14: Dc Bias Voltage Tuning

    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.

  • Page 15: Troubleshooting

    Your PC has not finish Wait until the last screen recognize ERNESTOLONE is seen USB DAC issue No driver installed Make sure PC support plug and play Try another USB port Sound quality problem...

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