1. Uvod
The AIYIMA T20 is a fully balanced tube preamplifier designed for high-fidelity audio systems. It features an ECC83/12AX7 tube design with a 180V high-voltage circuit, offering customizable sound through swappable vacuum tubes and op-amps. The unit supports both XLR and RCA inputs and outputs, and includes a 12V trigger for system integration.
Važno sigurnosno upozorenje:
The AIYIMA T20 requires a dedicated DC12V power adapter. Using incompatible or higher voltage power sources will cause permanent damage to the device. Always ensure the correct power adapter is used.
2. Sadržaj paketa
Prije nego što nastavite s postavljanjem, provjerite da li se u paketu nalaze sve stavke:
- 1 x AIYIMA T20 Tube Preamplifier
- 2 x ECC83 Tubes
- 1 x DC 12V adapter za napajanje
- 1 x Uputstvo za upotrebu
- 1 x Garantni list
Image: Contents of the AIYIMA T20 package, including the preamplifier unit, two ECC83 tubes, a DC 12V power adapter, a user manual, and a warranty card.
3. Podešavanje
3.1 Identifikacija komponente
Slika: Detaljna view of the AIYIMA T20's front and rear panels, highlighting the infrared receiving window, input mode indicator light, ECC83 vacuum tubes, display screen, ON/OFF/Volume control knob, XLR outputs, RCA outputs, RCA inputs, XLR inputs, 12V trigger output, and DC12V power input.
- Prednja ploča: Infrared Receiving Window, Input Mode Indicator Light (Red: RCA / Blue: XLR), ECC83 Vacuum Tubes, Display Screen, ON/OFF/Volume Control Knob.
- Zadnji panel: XLR-R/L Audio Out, RCA-R/L Audio Out, RCA-R/L Audio In, XLR-R/L Audio In, DAC Trigger Out, AMP Trigger Out, DC12V Power Input.
3.2 Ugradnja cijevi
The AIYIMA T20 comes with two ECC83 tubes. Carefully insert each tube into its designated socket on the top panel of the preamplifier. Ensure the pins align correctly with the socket holes and apply gentle, even pressure until the tube is fully seated. Avoid forcing the tubes to prevent damage to the pins or sockets.
Image: A hand carefully inserting an ECC83 vacuum tube into its socket on the AIYIMA T20 preamplifier, demonstrating the tube installation process.
3.3 Audio veze
Connect your audio sources (e.g., CD player, streamer, DAC) to the appropriate input ports on the rear panel. Connect your amplifier or active speakers to the output ports.
- XLR ulazi: For balanced audio sources. Connect XLR cables from your source to the XLR-R/L Audio In ports.
- RCA ulazi: For unbalanced audio sources. Connect RCA cables from your source to the RCA-R/L Audio In ports.
- XLR izlazi: For balanced connection to an amplifier or active speakers. Connect XLR cables from the XLR-R/L Audio Out ports.
- RCA izlazi: For unbalanced connection to an amplifier or active speakers. Connect RCA cables from the RCA-R/L Audio Out ports.
Image: A diagram illustrating various audio source connections (CD player, streamer, DAC, computer) to the AIYIMA T20's inputs, and its outputs connected to an amplifier for passive speakers or directly to active speakers.
Slika: Krupni plan views of the XLR output and input ports on the rear panel of the AIYIMA T20, showing the balanced connection options.
3.4 Priključak za napajanje
Connect the provided DC12V power adapter to the DC12V Power Input port on the rear panel of the T20, then plug the adapter into a wall outlet.
Image: A close-up of the DC12V power input port on the rear panel of the AIYIMA T20.
3.5 12V Trigger Integration
The 12V trigger allows for automated system control. Connect a 12V trigger cable from the T20's AMP TRIGGER OUT to a compatible power amplifier, or from a DAC's trigger output to the T20's DAC TRIGGER IN.
Image: A close-up of the 12V trigger input and output ports on the rear panel of the AIYIMA T20.
4. Uputstvo za upotrebu
4.1 Uključivanje/isključivanje i kontrola jačine zvuka
The large knob on the front panel serves multiple functions:
- Kratki pritisak: Uključuje uređaj.
- Dugi pritisak: Isključuje uređaj.
- rotirati: Podešava nivo jačine zvuka.
- Dvostruki klik: Isključuje ili uključuje zvuk.
Image: A close-up of the multi-functional volume control knob on the front panel of the AIYIMA T20.
Image: A close-up of the digital display screen on the AIYIMA T20, showing the current volume level.
4.2 Odabir načina unosa
Press the 'MODE' button on the remote control or short press the volume knob to cycle through available input modes (RCA or XLR). The Input Mode Indicator Light on the front panel will illuminate red for RCA input and blue for XLR input.
4.3 Intelligent Soft-Start System
The T20 features a 20-second intelligent soft-start system. Upon powering on, the unit will undergo a warm-up sequence to optimize tube performance before audio output is enabled.
4.4 Funkcije daljinskog upravljača
Priloženi daljinski upravljač omogućava praktičan pristup raznim funkcijama:
- UKLJUČENO ISKLJUČENO: Power on or off the unit.
- Isključi/Uključi zvuk: Isključite ili uključite audio izlaz.
- ON / OFF Display Screen: Toggles the display screen.
- MODE (Switch Input Mode): Ciklično prelazi kroz ulazne izvore.
- Volume Reduction / Volume Plus: Podešava nivo jačine zvuka.
Image: The remote control for the AIYIMA T20, showing buttons for power, mute, display toggle, input mode selection, and volume adjustment.
5. Održavanje
5.1 Zamjena cijevi
The ECC83 vacuum tubes are user-exchangeable, allowing for sound customization. To replace tubes, ensure the unit is powered off and disconnected from the power source. Carefully grasp the existing tube and gently pull it straight up from its socket. Insert the new compatible tube (e.g., 12AX7-S, 12AX7B, 7025, 12AX7) ensuring correct pin alignment before gently pushing it into place.
Image: A hand demonstrating the removal of a vacuum tube from the AIYIMA T20, illustrating the user-exchangeable tube feature.
5.2 Op-Amp Zamjena
The T20 also supports swapping op-amps for further sound customization. This procedure requires technical knowledge and should only be performed by experienced users. Ensure the unit is powered off and disconnected. Carefully remove the top cover of the unit. Locate the op-amp sockets on the PCB. Use an IC extractor tool to gently remove the existing op-amps (e.g., LME49720, OPA1612) and insert compatible replacements, paying close attention to orientation.
Image: A close-up of a replaceable op-amp chip on the circuit board of the AIYIMA T20, indicating its modular design.
5.3 Čišćenje
To clean the unit, power it off and disconnect it from the power source. Use a soft, dry cloth to wipe the exterior. Avoid using liquid cleaners or abrasive materials, as these may damage the finish or internal components.
6. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema struje | Power adapter not connected or faulty; incorrect power adapter used. | Ensure the DC12V power adapter is securely connected to both the unit and the power outlet. Verify that the correct DC12V adapter is being used. |
| Nema izlaza zvuka | Incorrect input selected; cables not connected properly; volume too low; unit in mute mode. | Check input selection (RCA/XLR). Verify all audio cables are securely connected. Increase volume. Ensure unit is not muted (double-click volume knob or use remote). Allow 20 seconds for soft-start warm-up. |
| Izobličen ili bučan zvuk | Loose tube or op-amp; faulty cables; interference; incorrect source signal. | Ensure tubes and op-amps are properly seated. Check audio cables for damage or loose connections. Try different cables. Ensure source signal is clean. |
| Daljinski upravljač ne radi | Baterije su prazne ili nepravilno umetnute; prepreka između daljinskog upravljača i uređaja. | Replace remote control batteries. Ensure there is a clear line of sight to the infrared receiving window on the unit. |
7. Specifikacije
| Feature | Detalj |
|---|---|
| Model | T20 |
| Tip cijevi | ECC83 / 12AX7 (User Swappable) |
| Op-Amps | LME49720 & OPA1612 (User Swappable) |
| Inputs | XLR (Balanced), RCA (Unbalanced) |
| Izlazi | XLR (Balanced), RCA (Unbalanced) |
| Odnos signala i buke (SNR) | ≥112dB |
| Ukupno harmonijsko izobličenje + šum (THD + N) | 0.003% |
| dinamički raspon (DR) | 109dB |
| Frekvencijski odziv | 20Hz-20kHz ± 0.2 dB |
| Power Input | DC12V |
| Dimenzije proizvoda (D x Š x V) | 7.48 x 5.59 x 1.81 inča (190 x 142 x 46 mm) |
| Težina artikla | 2.2 funti (1015 g) |
| Posebne karakteristike | 180V High-Voltage Tube Core, 12V Trigger, Intelligent Soft-Start System, All-Metal Construction |
Image: Diagram showing the dimensions of the AIYIMA T20 preamplifier in millimeters and inches, along with its net weight.
slika: Views of the AIYIMA T20's internal components, including the high-quality gold-plated PCB board, German WIMA capacitors, Japanese Nikicon capacitors, Japanese NJW1195 Volume IC, and RCA gold-plated connectors.
8. Videozapisi proizvoda
AIYIMA T20 Fully Balanced Preamp Gotovoview
Video: Prekorview of the AIYIMA T20 Fully Balanced Preampspasilac, izložbaasinnjegov dizajn, karakteristike i funkcionalnost.
AIYIMA T20 Fully Balanced Tube Preamp Karakteristike
Video: A detailed look at the features of the AIYIMA T20 Fully Balanced Tube Preamplifier, including its tube design, connectivity options, and build quality.
9. Garancija i podrška
The AIYIMA T20 includes a Warranty Card. Please refer to this card for detailed information regarding warranty coverage, terms, and conditions. For technical support, service inquiries, or further assistance, please contact AIYIMA customer service through their official channels or the retailer from whom the product was purchased.
