
BRZHIFI PA-RSDX108-4 Class AB Power Amplifier 2 Channel (2.0)
Key Features
- Working method: Class AB
- Output power: 140W × 2 (8 ohm)
- Total Harmonic Distortion:0.01%
- Dynamic Range :>115dB
- Frequency response:20Hz – 20kHz
- Input: RCA Lotus Terminals
Cash / Online Payment · EMI Available
Specification
Amplifier
Amplifier Class
Class AB
Power Chip/IC
Transistor
Output Impedance
4-8 Ohms
Input Voltage
230V AC
Colour
Golden
Description
BRZHIFI PA-RSDX108-4 Class AB Power Amplifier 2 Channel (2.0) – Swiss Inspired High-End Audiophile Powerhouse
The BRZHIFI PA-RSDX108-4 Class AB Power Amplifier 2 Channel (2.0) is a premium-grade audiophile amplifier inspired by the legendary darTZeel NHB-108 from Switzerland, one of the most respected reference amplifiers in high-end audio history. Available at Audio Phonic, this amplifier is engineered for users who demand extreme clarity, powerful dynamics, and studio-level control over speakers.
If you are searching for a high-power Class AB amplifier in Bangladesh with ultra-clean sound and professional-grade build quality, the PA-RSDX108-4 is a serious contender in the high-fidelity category.
Inspired by the Legendary darTZeel NHB-108
The design philosophy of this amplifier is based on the iconic:
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darTZeel NHB-108 (Switzerland)
Why this matters:
The original NHB-108 is known for:
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Ultra-transparent sound reproduction
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Extreme low distortion
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Wide dynamic range
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Reference-level stereo imaging
BRZHIFI PA-RSDX108-4 takes inspiration from this legendary design and enhances it for modern audiophile users.
High-End Dual Transformer Power Supply System
This amplifier features:
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Two 300W ring (toroidal) transformers
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Independent left and right channel power supply
Benefits:
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Strong and stable power delivery
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Better stereo channel separation
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Reduced electrical interference
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Improved sound clarity
Independent power supply design ensures true high-end stereo performance.
Massive Energy Storage with High-End Capacitors
The PA-RSDX108-4 uses:
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39000µF × 4 filter capacitors
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ELNA Audio 10000µF capacitors
Why this is important:
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Strong bass response
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Stable voltage under load
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Better dynamic impact
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Clean and controlled sound output
ELNA capacitors are widely used in premium audio systems for natural sound reproduction.
Powerful Output Transistor Architecture
The amplifier uses:
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MJL4281A
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MJL4302A
Advantages:
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High current output capability
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Lower internal resistance
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Better thermal stability
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Strong bass control
This results in tight, powerful, and accurate low-frequency performance.
High Power Output for Demanding Speakers
The PA-RSDX108-4 delivers:
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140W × 2 (8 ohm)
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200W × 2 (4 ohm)
Benefits:
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Can drive large floor-standing speakers
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Excellent dynamic headroom
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Clean output at high volume
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Stable performance under load
It is ideal for serious home audio and semi-professional setups.
Ultra-Low Noise and High Signal Clarity
The amplifier provides:
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Signal-to-Noise Ratio: 115dB
Result:
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Extremely silent background
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Crystal-clear audio detail
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High-resolution sound reproduction
Even quiet passages in music are clearly audible with depth and detail.
Wide Frequency Response for Full Audio Spectrum
The PA-RSDX108-4 supports:
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Frequency response: 20Hz – 20kHz
Benefits:
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Deep and controlled bass
-
Natural midrange clarity
-
Smooth treble response
This ensures balanced and accurate audio reproduction across all genres.
Professional Speaker Protection System
The amplifier includes:
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Japanese Omron speaker protection circuit
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High-power soft start system
Benefits:
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Protects speakers from power surge
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Prevents startup damage
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Extends speaker life
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Safe switching operation
This makes it safe for expensive hi-fi speaker systems.
Fully Aluminum High-End Build Quality
The chassis is made of:
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Full aluminum alloy body
Advantages:
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Strong durability
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Heat dissipation efficiency
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Vibration resistance
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Premium audiophile appearance
It looks and feels like a true high-end audio component.
Fully Shielded Toroidal Transformer Design
The dual A-core oxygen-free copper transformers are:
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Fully shielded
Benefits:
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Reduced electromagnetic interference
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Cleaner background noise
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Improved micro-detail reproduction
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Better stereo imaging
This ensures a black background sound stage with high clarity.
Audiophile-Level Sound Performance
The PA-RSDX108-4 is tuned for:
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Ultra-clean sound output
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Deep bass control
-
Wide stereo imaging
-
High-resolution detail retrieval
Listening experience:
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Studio-level clarity
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Natural instrument separation
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Powerful and controlled bass
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Smooth vocal reproduction
It is designed for serious audiophiles and high-end home audio systems.
Ideal Use Cases
This amplifier is perfect for:
High-End Home Theater Systems
Delivers powerful cinematic sound experience.
Audiophile Stereo Setup
Provides accurate and emotional music reproduction.
Large Room Audio Systems
Can drive powerful floor-standing speakers.
Professional Listening Rooms
Reference-grade sound clarity and control.
Why Buy from Audio Phonic
When purchasing the BRZHIFI PA-RSDX108-4 from Audio Phonic, you receive:
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100% original BRZHIFI amplifier
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Properly tested units
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Best price in Bangladesh
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Reliable after-sales support
Audio Phonic ensures authentic high-fidelity audio equipment for serious music lovers.
BRZHIFI PA-RSDX108-4 Price in Bangladesh
The BRZHIFI PA-RSDX108-4 Class AB Power Amplifier price in Bangladesh reflects its high-power dual transformer architecture, premium transistor design, and Swiss-inspired audiophile engineering.
It is designed for users who want professional-grade sound performance at a competitive price.
Technical Specifications
Model: PA-RSDX108-4
Brand: BRZHIFI
Type: Class AB
Channel: 2.0
Output Power:
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140W × 2 (8 ohm)
-
200W × 2 (4 ohm)
Transistors: MJL4281A / MJL4302A
Capacitors:
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39000µF × 4
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ELNA Audio 10000µF
Transformers: Dual 300W toroidal (A-core copper)
Input: RCA
Input Voltage: AC 220V
Frequency Response: 20Hz – 20kHz
SNR: 115dB
Build: Full aluminum alloy chassis
Dimensions: 440 × 370 × 170 mm
Net Weight: 25 kg
Package Weight: 28 kg
Final Verdict
The BRZHIFI PA-RSDX108-4 Class AB Power Amplifier 2 Channel (2.0) is a true high-end audiophile amplifier inspired by Swiss reference-class engineering.
With its dual transformer power supply, premium capacitors, and powerful transistor output stage, it delivers a highly detailed, powerful, and emotionally engaging listening experience.
If you are looking for a serious high-power Class AB amplifier in Bangladesh, the PA-RSDX108-4 from Audio Phonic is a top-tier choice.
Frequently Asked Questions (FAQs)
1. Is BRZHIFI PA-RSDX108-4 a high-end amplifier?
Yes, it is a premium Class AB amplifier inspired by Swiss reference design.
2. What is the output power?
It delivers 140W × 2 at 8 ohm and 200W × 2 at 4 ohm.
3. Can it drive large speakers?
Yes, it can easily drive floor-standing speakers.
4. What makes it special?
Dual transformers and ELNA capacitors improve sound quality.
5. Is it suitable for home theater?
Yes, it is ideal for powerful home audio systems.
6. What type of sound does it produce?
It produces clean, powerful, and highly detailed sound.
7. Is it safe for speakers?
Yes, it includes Omron protection and soft start system.
8. Where can I buy it in Bangladesh?
You can buy it from Audio Phonic with reliable support.



















