Product Description:
The original Lehmann line, circuitry without additions or deletions all retained, and the original version of the same, with dual recoverable insurance, with gain selection, with backup positive and negative power input, with two 6.35MM earphone seat output, with the rear audio output (for the current level), only improved its component mounting holes, so that it is more flexible to install a variety of audiophile components, more convenient DIY production
Board materials: filtering with South Korea SAMYOUNG 6800UF, the board provides enough pure power, audio output coupling capacitors with Sweden RIFA transparent film fever coupling, an audio circuit using a large number of Sweden RIFA induction capacitors and Germany Siemens capacitors, the original BD139 BD140 on the tube output. Potentiometer using the original Japanese fever ALSP A100K duplex potentiometer, durable, better than domestic goods N many times. (Indeed, sad that there is no one good potentiometer)
Power supply voltage regulation using LM317 and LM337, voltage stabilization effect is more superior than 78 series, regulator current is greater.
Op-amp IC using TI Texas Instruments NE5532, cost-effective op-amp. (Can also be upgraded to a more advanced OPA2604, AD827 and other fever op amps)
Board size: 106MM * 148MM
Operating voltage: AC 15V-0-15V
Applicable headphone impedance: 32 ohms-600 ohms
Frequency response: 20HZ-20KHZ
Packageļ¼
1pc E1 Lehmann Line Amplifier Noiseless Headphone Power Amplifier Preamp
Payment Method: PayPal preferred
Shippment:
1.We provide free shipping to international via China Post Airmail, and every parcel will be registered with tracking number. We can also ship by UPS/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment.
2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, please contact us.
3.Time of Delivery:Based on the China Post Airmail and our experience, kindly please be noted that To United States / United Kingdom / Australia, it takes around 10-15 business days; To Canada, it takes around 12-18 business days; To Brazil / South America, it takes around 25-35 business days. To Italy / France / Spain / Germany/ Eastern Europe, it takes aournd 15-20 business days.
Returns & Replacements & Repair:
We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways.
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