10 REASONS TO SHOP WITH US
Discover why we are your ultimate destination for all things audiovisual.
Sugden Masterclass SPA-4 - 2 Channel Stereo Power Amplifier is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Discover the Freedom of Zero-Cost EMI on Purchases above ₹30,000.
Experience the Peace of Mind with Official Manufacturers Warranty on Every Product.
In general, orders are delivered within 4-6 days. However, in some cases there might be a slight delay.
Pure Class A Amplifier Design
Built using Sugden’s renowned pure Class A circuitry, delivering exceptionally natural, warm, and detailed sound reproduction.
High-Performance Stereo Output
Provides powerful and clean amplification with approximately 50W per channel at 8Ω and higher output at lower impedance, suitable for premium speaker systems.
Balanced & Unbalanced Inputs
Supports both RCA (single-ended) and balanced inputs, offering flexibility for integration into high-end audio setups.
Wide Frequency Response
Engineered for accurate and detailed sound reproduction across the full audio spectrum.
Low Noise & High Signal Integrity
Designed to deliver clean, distortion-free audio with excellent signal-to-noise performance.
Advanced Circuit Architecture
Features a carefully engineered circuit design for improved dynamics, control, and overall audio precision.
Exceptional Soundstage & Detail
Produces a wide and immersive soundstage with precise imaging and musical accuracy.
Heavy-Duty Audiophile Build
Solid construction with premium components ensures durability and long-term reliability.
Ideal for High-End Hi-Fi Systems
Perfect for audiophiles seeking pure analog performance and superior sound quality.
Specification
Details
Product Name
Sugden Masterclass SPA-4 Stereo Power Amplifier
Amplifier Type
Pure Class A Amplifier
Channels
2 Channel (Stereo)
Power Output (8Ω)
50W x 2
Power Output (4Ω)
75W x 2
Circuit Design
Fully Balanced, DC-Coupled, Current Feedback Design
Inputs
RCA (Single-Ended), XLR (Balanced)
Outputs
Multi-way Binding Posts (Speaker Output)
Input Sensitivity
1V for Full Output
Frequency Response
15Hz – 30kHz (±0dB)
Bandwidth
2Hz – 200kHz (-3dB)
Signal to Noise Ratio
>85 dB
Minimum Load Impedance
4Ω
Dimensions
250 x 430 x 350 mm
Weight
~25 kg
Ideal Use
High-End Audiophile Systems, Premium Stereo Listening
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.