Black Widow NHB-268 THREE Rear Stage Power Amplifier

Description

 

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Powerful and exquisite voice. Excellent value, allowing you to experience a linear surge.

# **Black Widow NHB-268THREE Power Amplifier**

 

## **A Masterpiece of Precision Engineering and Musical Excellence**

 

The **Black Widow NHB-268THREE** power amplifier is designed for passionate audiophiles who demand the highest level of **musical realism, sonic accuracy, and emotional engagement**.

 

Combining advanced circuit architecture, premium-grade components, and uncompromising engineering, the NHB-268THREE delivers an effortless, refined, and immersive listening experience — even when driving the most demanding loudspeakers in the world.

 

 

# **Advanced Engineering & Key Features**

 

## **1. Ultra-Low Noise Power Supply Design**

 

Each channel is equipped with a dedicated **650W Sri Lankan toroidal transformer**.

 

The transformer uses a specially imported core and is professionally encapsulated by the SP-Audio factory inside a custom stainless-steel enclosure using advanced vibration-control technology.

 

The result:

 

* Extremely low mechanical noise

* Exceptional background silence

* Improved micro-detail retrieval

* Greater purity in musical reproduction

 

With the top tempered glass cover closed, the amplifier operates so quietly that it can almost appear as if it is not powered on.

 

A reliable **soft-start protection circuit** prevents damaging inrush current during startup, ensuring long-term stability and durability.

 

The amplifier also features temperature monitoring, visible through the two red power indicators beneath the glass panel, allowing the user to monitor operating status easily.

 

The elegant breathing light effect during standby creates a premium experience every time you power on the amplifier.

 

**Available voltage options:**

110V / 115V / 120V / 220V / 230V / 240V

(Default: 115V / 230V)

 

 

# **2. Massive Energy Storage System**

 

Equipped with:

 

**12 custom SP-Audio capacitors**

**22,000µF / 80V each**

 

Total capacitance per channel:

 

**132,000µF**

 

This enormous energy reserve provides:

 

* Instant current delivery

* Powerful dynamic impact

* Deep and controlled bass reproduction

* Improved transient response

 

Large-capacity filtering allows the amplifier to maintain a more stable power supply during demanding passages, ensuring greater control, cleaner output, and effortless performance during high-current operation.

 

This advanced power architecture is one of the reasons why the NHB-268THREE belongs in the true high-end amplifier category.

 

 

# **3. True Fully Balanced Architecture**

 

The NHB-268THREE uses a **fully balanced symmetrical circuit design** from input stage to output stage.

 

From the differential input section to the final power output stage, the amplifier uses specially selected SP-Audio high-performance audio-grade power transistors.

 

Each channel features:

 

* 6 high-power output transistors

* Total power capability: 1200W

 

This provides exceptional current delivery and enormous operating headroom, allowing the amplifier to control even the most demanding loudspeakers with authority.

 

 

# **4. High-Power Performance With Exceptional Control**

 

Output power:

 

**260W RMS @ 8Ω per channel**

**420W RMS @ 4Ω per channel**

 

With its generous power reserve, the NHB-268THREE maintains:

 

* Accurate control

* Excellent dynamics

* Powerful bass authority

* Smooth musical expression

 

Even at low listening levels, it delivers a rich, layered, and highly detailed soundstage with outstanding emotional involvement.

 

 

# **5. Premium High-Current Power Transmission**

 

A custom-designed:

 

**5mm thick gold-plated copper busbar system**

 

Ensures unrestricted high-current transmission.

 

This design maintains:

 

* Maximum dynamic capability

* Stable high-power operation

* Reduced signal loss

* Lower risk of distortion during demanding musical passages

 

 

# **6. Luxury Industrial Design**

 

The NHB-268THREE combines engineering excellence with a unique luxury appearance.

 

Construction details:

 

* 8mm semi-transparent tinted glass top panel

* 10mm aluminum internal cross-support structure

* 15mm aviation-grade aluminum front panel

* 10mm aviation aluminum rear mounting structure

 

The entire chassis uses thick golden aluminum construction, providing:

 

* Exceptional rigidity

* Vibration resistance

* Premium high-end appearance

 

The iconic Black Widow design combines:

 

**Gold chassis + Red cooling elements**

 

Symbolism:

 

* Gold represents luxury, achievement, and excellence

* Red represents passion, energy, and power

 

A design that perfectly reflects the amplifier’s performance philosophy.

 

 

# **Outstanding Loudspeaker Compatibility**

 

Designed to effortlessly control world-class loudspeakers, including:

 

* ATC Loudspeakers

* Bowers & Wilkins

* Dynaudio

* ProAc

* Thiel Audio

 

Regardless of load difficulty, the NHB-268THREE delivers:

 

**Authority. Precision. Musical realism.**

 

 

# **Technical Specifications**

 

### Power Output

 

* 260W RMS @ 8Ω

* 420W RMS @ 4Ω

 

### Gain

 

32dB (fixed, 8Ω reference)

 

### Input Impedance

 

RCA:

 

• 30kΩ (5Hz–200kHz)

 

BNC:

50Ω ±1Ω (10Hz–100kHz)

 

XLR:

 

• 100kΩ

 

### Frequency Response

 

BNC:

20Hz–100kHz (+0/-6dB)

 

RCA:

20Hz–100kHz (+0/-0.5dB)

 

XLR:

20Hz–50kHz (±0.5dB)

 

### Total Harmonic Distortion

 

<1% (22Hz–77kHz)

 

### Signal-to-Noise Ratio

 

• 100dB (A-weighted)

 

### Power Consumption

 

Standby:

85W

 

Maximum output:

1300W

 

### Dimensions

 

450mm (W) × 365mm (D) × 160mm (H)

 

Front panel height:

170mm

 

### Weight

 

40kg

 

### Inputs

 

RCA / XLR / BNC

 

### Default Mode

 

BTL fully balanced bridge output

 

 

# **Conclusion**

 

The **NHB-268THREE is not simply a power amplifier — it is a precision-engineered instrument for musical expression.**

 

Created for listeners who refuse compromise, it delivers:

 

**Deep authority. Extraordinary detail. Effortless control.**

 

The result is a listening experience where music becomes more realistic, emotional, and alive.

 

**Feel the power. Hear the truth. Experience the difference.**