Power Amplifier amp Reference circuit NHB-108 dartzeel 200W*2 audio amplifier

Description

There are three versions:please tell me which version you want before you pay for it ,
and
leave a message that which voltage you need for your household use.thank you!
version 1:
without volume control,pure amplifier ,it is suitable for using with
preamp
9
version 2:
with volume control,it can be use alone or with a pream   9
version3
:
Upgrade the circuit design and the chassis
5
Notice : we also have upgraded version without volume control knob , it is the same price with version 3 ,
without volume control version should use with preamp , if you need upgraded version without volume control knob , you should contact us first , otherwise we will send upgraded version with volume control knob by default .
(Input Impendance) : 100K ohms
(Line Gain)            :+26dB
(THD+N)  : -100dB@no load ; -60dB @8ohm
(CrossTalk)               :- 125 dB
(SNR)                        :115dB
(Freq. Response)   :10Hz ~ 20KHz
(Max. RMS Power )  :140W @8ohms ; 200W @4ohms
(Size)                        : 440x330x160 (W*D*H)
(Weight)                          :  21KG( version1)      28KG(version 3)
wide 440mm x deep330mm(with knob 410mm)x height 160mm(version1)
wide440mmxdeep380mmxheight160mm(version3)
The main amplifier circuit reference value 20000USD of Switzerland's famous NHB-108 dartzeel.
NHB-108 amplifier using No negative feedback amplifier circuit, completely eliminate the impact of the speaker counter electromotive force on the power amplifier. Sound natural, comfortable, super strong control.
1. all aluminum chassis.
2. OFC 400W transformer*2, left and right channel independent power supply, ensure adequate separation degree and energy.
3. Filter array composed of 16 original 10000UF ELNA-AUDIO capacitors.
4. Japan OMRON horn protection circuit and high power soft start.
16*ELNA AUDIO 10000UF
OFC 400W transformer*2
Input Impedance:    100KΩ
Line Gain:               +26dB
THD+N:                   -100dB(no load)   -60dB (8Ω)
CrossTalk:               - 125 dB
SNR:                        115dB
Freq. Response:      10Hz ~ 20KHz
Max. RMS Power:   140W (8Ω)  200W (4Ω)
Volue:                      440x330x160 (W*D*H)
The new verion
The original ON power tube: MJL4281 MJL4302
Payment Policies:
1. We accept Paypal only.
2. All payment should be completed within 7 business days after auction end.
Shipping Policies:
1.Item prossing time.
We will dispatch the products within 1-3 working days upon the system confirms your payment,when buyers have some special request (e.g. Voltage ,color...etc.),we will delay to ship the orders and will inform buyers about it.
2.shipping methods
Items are shipped out via DHL/EMS express with tracking number .the shipping fee is
175USD
to
United States
, Other Countries buyers should contact us for shipping fee.
3.Delivery time:
DHL usually takes 3-7 working days , EMS usually takes 5-10 working days.
Return & Warranty
1) 1 year warranty provided by manufacturer.
2) Missing item or get wrong item or Get damaged items, DOA (dead on arrival)
When you (buyer) get the package, if you find there are some items missing from your order or we sent you incorrect items or you find
the item is damaged (cracked) in appearance or the item does not work (DOA), please keep all the items in original condition and also keep
the packing stuff, weigh all the items together with packing, then take some photos of them and send us the photos by email. Please
contact us within 7 days after receipt of package. We will investigate the case when we get your email. If the case is true,
we will send you the missing item or replacement or refund  (sometimes you may be requested to return the incorrect item).
3)If you are not happy for any reason with your purchase or you purchased the wrong item , If the return is not a result of our error,
customers will be required to cover shipping cost both ways .
4)all returned merchandise must be in original factory condition (including the original packaging and everything).
5) all items must be returned within 30days of purchasing the item ,
6) For the replacement, we will send it out in the shipment ways as the customer selected in their original order.