SP Black Widow Non Feedback Amplifier Balance NHB-368 Three Rear Stage Amplifier Dartzeel NHB-468 Study Version 4ohm 600W RMS 8ohm 360W RMS
Description
output power：
4 ohms 600 watts RMS
8 ohms 360 watts RMS
Power stage gain of 26-32 dB, user selectable (reference 8 ohms)
Analog input impedance 1 x Bnc Zeel 50 ohms, 1 Hz to 1 Mhz
1 x Rca line>30 kohms, 5hz to 100kHz
1 x Xlr > 30 kohms
Speaker output impedance<0.28 ohms from 20 Hz to 20 kHz (measured below 8 ohms)
Frequency response 0.7 Hz -700 kHz,+0, -3 dB
Rise time<0.8 μ s
Slaw rate>200 V/μ s, peak to peak value
DC output voltage ± 25mV
Total harmonic distortion (THD)<1% within the output dynamic range from 7 Hz to 77 kHz
Time distortion free, at any level and load, as described above
Signal to noise ratio>110db (A)=nominal power
Power consumption 3 watts standby, 100 watts=idle, dual channel transformer uses 3000 watts of power
Millimeter size 480 x 425 x 220 mm(WxDxH)
Including the size of the front and rear handles it is 545 mm depth
Net weight: 51 KG after add wooden have about 65kg ，
Rated voltage: 220V、110V for chooseThe Black Widow NHB-368thread line comes from Switzerland's Dachau NHB-468. The layout follows our new design and operates in BTL bridging mode, with balanced outputs for both input and output.
NHB-368three is not only a high-end upgraded version of NHB-368two, but also the latest design and technology combination of the Source Poetry brand. Like all source poetry products, Three continues the consistent appearance design of Black Widow, with a noble and gorgeous appearance as well as a smooth aftertaste
It can be seen from the back panel of the machine that it is a multifunctional input post amplifier, which has BNC50 ohm impedance interface input, single ended RCA interface input, and XLR balanced interface input. A set of horn terminals are distributed on the left and right sides of the rear panel.
The NHB-368THREE is equipped with two high-quality 1500W transformers in the rear stage, each connected to two Motorola 50A high-power rectifiers. When connected to eight SP AUDIO customized 22000U capacitor arrays with a total capacity of up to 176000, it can provide a continuous power supply for the entire machine in any situation. In order to achieve better and more efficient transmission, we have specially customized pure copper plug-in inserts, which have a significant improvement in sound quality.
Not only that, in order to provide purer and higher quality sound, the NHB-368THREE PCB is processed with thickened pure copper foil plated with 9999 silver, which is also a common feature of the NHB series amplifiers under Yuanshi. In terms of music signal processing, a more reasonable layout is used to ensure that weak signals are powered and transmitted through the shortest path, minimizing signal loss. The design also adopts single point grounding circuit technology to reduce the distortion rate to below 0.001%.
