Finished FET Class A Headphone Amplifier Base on Audio HA5000

Description

This is a Full
Separate Pure Class A headphone amp. the circuit is base on the famous  HA5000. the sound is very Excellent!!
Works voltage: AC230V (we also can make AC115V)
Size:155mm*60mm*265mm (W*H*D)
Load impedance 16-600 Ohm
Sensitivity of 1.1 V / 50,000 ohms
Maximum output power
2,400 mW + 2,400 mW (16 ohm load)
1,200 mW + 1,200 mW (32 ohm load)
600 mW + 600 mW (64 ohm load)
65 mW + 65 mW (600 ohm load)
Input impedance: 47KOhm
Frequency characteristics: 10Hz - 35kHz
Signal ratio for noise: >90dB @ Gain 6dB
Output impedance: line output 0.2 Ohms
Frequency Response
5 ~ 200,000 Hz
Using Toshiba 2SK370 FET as a single differential input, sound
is very delicate,
K2955 J554 power FET as the output, low frequency is very full,
very flexible.
on the amp Board
with
a
gain
switch, you can set the magnification depending on
headset
Note: the K2955,J554 are used.but with good performance.
Payment
only
Delivery details
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When we receive your payment, we will be help you arrange shipping in 1-2 working days.
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All our parcels are shipped via China Post.Can provide Following two Delivery mode：
Airmail                                              It takes about 7-25 days
EMS/DHL (Express Mail Service):     It takes about 5-14 days
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Please, make sure to provide us with correct, precise, and detailed shipping Address.
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If you don't receive items over 30 business days , please notify us.
Terms of sale
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Buyer should expect to pay any amount charged by the government of bidder's country; this includes but not limited to duty & tax
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Shipping & handling fees are non-refundable.
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If you haven’t received the item in one month, we will refund to you.
（PLEASE INSPECT YOUR ITEMS WHEN THEY ARE RECEIVED）
About us
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