ADV Fully Balanced Tube Headphone Amplifier with Type-C USB Charging Cable

EUR 141,07 Sofort-Kaufen, EUR 5,95 Versand, eBay-Käuferschutz
Verkäufer: thanksbuyer-hobby ✉️ (18.850) 98.7%, Artikelstandort: Shenzhen, CN, Versand nach: WORLDWIDE, Artikelnummer: 255980135605 ADV Fully Balanced Tube Headphone Amplifier with Type-C USB Charging Cable. Description   ADV Fully Balanced Tube Headphone Amplifier Portable Tube Headphone Amp w/ Type-C USB Charging Cable

Circuit:
- The circuit is designed for class A loop-free feedback, pursuing the most natural and unfettered sound performance.
- It adopts dual triode tube common-negative voltage gain, op amp buf stage buffer, and triode current output.
- The output of the circuit is a direct even output, which removes the output coupling of the large-capacity electrolytic capacitor to avoid the coloring of the sound quality and excessive artificial modification by the electrolytic capacitor. In addition, the sound quality is more pure, transparent and natural.

Features:
- Its acoustic-to-noise ratio is quite good, reaching a level comparable to that of traditional pure integrated IC portable headphone amplifiers
- The supply voltage of the tube circuit of this machine is 30V. Under the premise of satisfying the linear index, a relatively high slew is obtained
- Op amp supply voltage ±12V
- Mid and high frequencies sound is transparent, and low frequency sound is powerful. Good resolution and high dynamic range. Class A sound is charming, has a strong musical flavor, and has excellent performance with low distortion and wide frequency response. The vocals are warm and detailed

Components:
- Internal resistance: original resistor for VISHAY and original resistor for KOA. Low temperature drift 0.5%
- Volume control potentiometer
- Input coupling capacitor: Original electrodeless speaker capacitor for Arcotronics
- Imported power supply filter capacitor
- Two imported double tripolar tubes. The tubes has low internal resistance and long service life. Their sound is clear and transparent, delicate and round, and the music is rich
- Cost-effective LM4562 op amp: The op amp is pluggable. Users can upgrade their favorite op amp ICs to improve the performance of the device for better sound quality
- Imported current output tube

Basic Parameters:
Functions:
- Working mode 1: single-ended class A mode input and output (3.5 headphone jack)
- Working mode 2: Class A parallel mode input and output (3.5 headphone jack)
- Working mode 3: Class A balanced mode input and output (4.4 headphone jack)

Endurance Time:
1. Single-ended class A mode: about 8-9 hours
2. Class A parallel mode: about 4.5 hours
3. Class A balance mode: about 4.5 hours

Other Parameters:
- 9600mAh built-in lithium battery: It is recommended to use a charging adapter no less than 5V 2.5A. It takes about 4.5 hours to fully charge. It can be used while charging
- Support power bank to provide 5V 2A charging output
- Frequency response range: 20HZ-42KHZ
- THD: 0.015% 1khz
- SNR: 95dB
- Output power: about 900mw (32Ω) in single-ended Class A output mode; about 1350mW (32Ω) for class A parallel mode output; about 1620mw (32Ω) for class A balanced mode output
- Output load range: 16Ω / 400Ω
- Size: 120 x 76 x 29mm/4.7 x 3 x 1.1" (LxWxH)

Package Included:
- 1 x Main unit
- 1 x USB charging cable

Attention:
- Tubes are high-temperature devices. At an indoor temperature of 30°C, the case temperature of headphone amp is about 56°C when working.

 


Panel:



Easy to Use:
1. Single-ended mode: Power on. After a few seconds, the two-channel indicator will light up. Signal is connected to the 3.5 input port, and your headphones are connected to the 3.5 output port.
2. Parallel mode: Power on. Toggle the channel switch BAL/A//. After a few seconds, the quad-channel indicator will light up. The mode is switched to the A// position. Signal is connected to the 3.5 input port, and your headphone is connected to the 3.5 output port.
3. Balanced Mode: Power on. Toggle the channel switch BAL/A//. After a few seconds, the quad-channel indicator will light up. The mode is switched to the BAL position. Signal is connected to the 4.4 input port, and your headphone is connected to the 4.4 output port.

Payment Terms   1. We accept PayPal,Payoneer,Visa Card,Google pay,Credit card etc.
2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms   1. We will process the order within the handling time ,if you have any questions, please contact us via eBay message or email.
2. For remote regions of DHL/FedEx..., extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding. Return Terms   If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days. We will guide you the returning process for replacement or refund. Custom Duties & Taxes   1. It is buyer's responsibility to cover the import duties, taxes.We do not charge any taxes and fees, and the possible taxes and fees will be collected by the platform or by third parties such as customs and carriers.
2. Please check with your country's customs office and inform us what/how much should declare before shipping. Feedback   1. Please kindly leave us a positive feedback and 5 star DSR if you satisfied with our product and service. Please feel free to contact us firstly if you have any problem with your order, we are responsible and credible seller and will solve the issue it for you asap.
2. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.


Am 15.02.2023 hat der Verkäufer die folgenden Angaben hinzugefügt:

  • Condition: Neu
  • Marke: Markenlos
  • Farbe: Schwarz
  • Produktart: Integrierter Verstärker

PicClick Insights - ADV Fully Balanced Tube Headphone Amplifier with Type-C USB Charging Cable PicClick Exklusiv

  •  Popularität - 0 Beobachter, 0.0 neue Beobachter pro Tag, 409 days for sale on eBay. 0 verkauft, 10 verfügbar.
  •  Bestpreis -
  •  Verkäufer - 18.850+ artikel verkauft. 1.3% negativ bewertungen. Großer Verkäufer mit sehr gutem positivem Rückgespräch und über 50 Bewertungen.

Die Leute Mochten Auch PicClick Exklusiv