(Ultimate Ver) EA1 headphone amplifier kit (base Beyerdynamic A1) CL-121
1: New Zealand Trek's most advanced full-Lok Kwan Yong acoustic headphone plug gold-plated professional equipment to ensure reliable contact point!2: UPC1237 seat protection, especially expensive headset is very important. Effective way to eliminate the impact of sound, is working with more confidence
3: Use the Panasonic original signal relay protection, minimal contact resistance! The audio signal loss is small.
4: Using ALPS 16 type potentiometer
5:The opamp is MC33078
(Original machine with the MC33078N is neutral, buyer can put your favorite NE5532, OPA627 (single turn double), OPA2132, OPA2134 op amp, etc..)
6: Power Transistors ST BD139.140
The schemaitc is availalbe.
Input Voltage: Dual AC12-18V
recommned transformer 15W-30W
Note: this is a diy kit. need yourself to solder all the parts. if you need the assembled board.Please check the following link:
http://www.ebay.co.uk/itm/Ultimate-Ver-Assembled-EA1-headphone-amp-board-base-Beyerdynamic-A1-CL-112-/111480079994
The following photo just for reference only:
Default send by air mail,about 15-22 working days to arrive most of europe countries, or can add money for fast express.
Payment:
We ONLY accept PayPal. Payment must be made within 3 days of the auction end time. Non-Paying bidders will be reported.
All items will be shipped within 1-3 business days (from china)upon receipt of payment.
We ONLY send item to buyer's registered Paypal address,Buyer must be responsible for their postal address
Customs & duties:For cross-border transactions,.we are not responsible for tariffs and duties. However, buyers may be responsible for actual, applicable tariffs, and duties as requested by respective country laws
Return & Exchange:
>> Some items return is accepted within 7 days after the buyer's receiving the item.(please see the detail describe)[In case of DOA (Dead on Arrival), please report within 3 days]
>> Returned item has to be new, unworn and in its original condition.
>> After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and from )