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Hiend Clone Krell KSA-5 V2.0 headphone amp PCB KSA5 amplifier bare PCB
Note this is a bare amp PCB. not include the Power supply board. we can provide PDF schematic and BOM.
PCB size: 19cm*22cm, board thickness 1.6mm, copper thickness 1oz,
works voltage: +/-DC21V
The Clone the original KSA5 amp circuit and is now upgraded to V2.0.
The following sections have been modified from the original:
1. Remove the original boot delay circuit, add dual independent C1237 earphone protection circuit, relay double contact in parallel, reduce contact resistance, according to different relays, the minimum can be reduced to 5mR, to adapt to the 3W small class A.
2. Changed the original layout of the unreasonable components and traces. The large filter capacitor is compatible with 5mm/7.5mm pitch and supports up to 18mm diameter.
3. Increase the size of the heat sink, use 42*25mm size radiator, the commercial height is generally 35mm
4. The left and right channel power supplies are independent, but the ground wire is connected.
As a Class A headphone amplifier, the KSA5 has a high resolution and dynamics. It is called a soil gun and is positioned at the Hi-End level.
we use the K701 to compare the amps like the A1, the imitation XP7, the imitation small hedgehog SAC K1000, and none of them can do the KSA5.
BOM:
Shipping time:Default send by airmail,about 14-20 business days can arrive most of europe countries, Russia, Brazil,Africa.Ukraine and some other remote countries will need some more days.
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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 )On 25-Jun-19 at 04:44:07 BST, seller added the following information:
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Category: Sound and Vision:Home Audio and HiFi Separates:Other Home Audio
Location: GUANGZHOU