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Item description

Little Bear B1 BLK Portable Rechargable Tube valve headphone amplifier amp V1.3
 
B-1 is a tube headphone amplifier and portable, the sound feels warmer than transistor products. It has built-in battery protection circuit. It powers off after is is fully charged automatically, Can realize the use of human intelligence.
 

Upgrade log (30th-Apri-2015):

In this version upgrade 3 options:

1, Solved big "POP" wave noise problem, it was happen in turn ON / OFF amplifier, current the POP noise is very lower. Just like a clock tick sound. Keep safe for your headphone

2, Solved the scratch noise, it was happen in you turn UP or DOWN the volume, current. That noise is gone

3, Improve the amplifier working time. Because we improve the PCB circuit, change some parts. And the work time is up to 4 hours now. (Before just about 2.5-3 hours)
 
Features:
 
3 hours cruising, the Actual situation with machine: clear voice, High resolving power, details performance skillfully, high frequency sounds mellow, neither too high or too boring.medium frequency sounds pure.Low frequency sounds good-nature, resistance to listen to but not turbid. The whole voice sounds pure, Ryan and Sharpay.Symphony performances well, the sound of each instruments can be reconised clearly.
 
Internal adopts miniature American tube 6111 or 6021.
 
Suitable for LOW ESR earphones (performs well with 600Ω DT990 in test.)
 
Lithium batteries: enough power supply
 
Super low voltage work: safe & reliable, do not worry that you might get an electric shock 
 
Application:

1. Connect MP3: Headphone socket: 3.5mm socket Input socket: 3.5mm socket: Easy to connect to MP3 directly

2. Connect CD: when you connect to CD, you could use 3.5mm to RCA socket connection cable.

3. Use as Pre-amp: Cane be used as pre-amplifier: connect the power amplifier from the headphone input socket.

Parameters:
  • Frequency response range: 0-100K-0.1dB
  • Output power: 500mW
  • SNR: 99dB
  • Suggest load impedance: 16-600Ω
  • Size: 100 * 69 * 23 mm1 (Length XWidth X Depth)
  • Net Weight:190g

Materials in selection:
  • Gold-plated input / output socket
  • NE5532 amplifier
  • nichicon electrolytic capacitor
  • Precision rings resistance.
Package included:
  • 1x headphone amlifier.
  • 1x charger
  • 1x audio cable
  • 1x bag.
  • 2x Bandage

 

silver-b1-2silver-b1-3silver-b1-4


black-b1-3 

 

  • Paypal Only --Buyer must pay using PAYPAL  within 7 days from the date of transaction made.

  • Full Payment --Transaction with insufficient payment will not be handled. So, please make you complete the full payment, including Final price + Postage.

  • No Discount --No discount is offered for all transactions.

  • Processing --We will arrange the dispatch within two working days after we receive the valid and completed payment.

  • Note:We are not responsible for any customs duties fee and any additional charges
  • Please send us your correct personal details and your requirments via Ebay when you payment (like contact person,telephone number, correct address,input voltage, color, etc..)
  • Shipping cost includes postage, packaging, and handling fee which are in agreement with eBay's rules. If you have any disagreement, please read eBay's rules regarding shipping cost carefully. We don't add a surcharge on shipping thus the shipping charge is firm and non-negotiable.
  • Shipping methods: item will be shipped within 2 working days upon receipt of FULL payment. It is noted that PayPal pending payment (such as eCheck) may take up to 5 working days to clear. We use air mail (18-28 days to most countries), or expedited service such as EMS or DHL (5-10 days to most countries).
  • No Combined Shipment: Combine shipping is not available since AIRMAIL POST charges the postage based on weight rather than number of boxes.
  • Customs Clearance
We are NOT responsible for any import tax, customs fees or customs delay.

Buyer cannot request cancellation of the auction or request for refund under this situation.

Please check with your local tax or import authorities BEFORE bidding.

Terms of Sales

We offer 1-year manufacturer warranty (some exclusions may apply).

  • In In case of “dead on arrival” (DOA), please notify us immediately within 3 business days and return the case within 7 days after receiving the items. (The postmark date is applicable.). All of our items were inspected before shipping. We provide technical support via email. If the problem cannot be resolved and return is determined to be the best solution, after receiving the items in original condition, you may have a replacement or refund as soon as we cancel the order on eBay. If it is any reason other than product defect, shipping cost is non-refundable.
  • If the item was sent back for repair during the first 30 days, return shipping cost is the buyer’s responsibility. We pay the 2nd shipping cost & handling.
  • A fter the 30 days, if you ask for replacement or repair, you need to pay for the 2nd shipping cost & handling.
  • If you return the item for reasons other than product defect or shipping damage, you will pay a 20 % restocking fee.

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  • The address on the parcel is NOT the return address. Please contact us for the return address before you return it, otherwise we won’t get it.

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