P7 Preamplificador de audio HIFI Transistor Referencia Marantz SC-7S2 Terminado

1. The P7 preamplifier circuit reference the Marantz SC-7S2, the buffer amplifier with independent modules "HDAM-SA", structure is complicated, but everything is the good sound.
2. The core with 30 pairs original A970/C2240 transistors( matched precisely in 2%)
3. Capacitors used much hi-end capacitors, such as ELNA SILMIC II, nichicon KZ MUSE, WIMA and so on
4. Class A low noise rectifier filter and regulator power supply, Main capacitor used nichicon KG Super Through capacitor
5. CNC machining aluminum chassis
6. 50W O-type transformer
7. The resistors is Philips with copper feet
8. Japan high-precision ALPS 27 potentiometer
9. 4 in 1 signal select

1. Some components may be will be changed without notice,but they will be with the same quality and performance.

2. P7 preamplifier assembled board,click here

PLS Note :We will not responsible any Customs fee or duty
1. Handing time: Your items will be shipped within 2-4 business days after payment received (excluding delivery time). Pacakage well packed in strong box with foam, tracking number will be provided, please don't worry.
2. Delivery time:
  a: Package weighs less than 2 kg, ship via standard international airmail from China
    Normally takes 7-15 business days to arrive in US
    Normally takes 13-30 business days to most other countries
    You also can add more money to choose EMS or DHL express for a faster delivery time, which normally takes 3-8 business days only.(Please contact us)
  b: Package weighs more than 2 kg, ship EMS or DHL express, which normally takes 3-8 business days

We majored in Hifi audio DAC, amplifier， preamplifier ,headphone amplifier and other hifi DIY audio parts
We have our own designed team and professional for Building Diy audio,we can support the skill direction
All the product quality with Gurantee, every finished board will take at least 24 hours for burn-in before shipping

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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.
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.