Plinius Reference RA-150 Series Power Amplifier
Best high-performance amplifier for audiophiles seeking uncompromising power and sonic clarity.
Experience the pinnacle of audio engineering with the Plinius Reference RA-150 Series Power Amplifier. Evolving from the acclaimed SA series, this amplifier delivers exceptional performance and aesthetic appeal. It offers over 150W per channel into 8 ohms, with a powerful mono output of 450W. Featuring a wide frequency response and minimal distortion, it ensures pure, clear audio reproduction. Advanced componentry and power supply updates provide remarkable responsiveness and control, allowing your speakers to replicate the artist's efforts in stunning detail. This amplifier is a true force of nature for discerning listeners.
$7199.95
Owner Satisfaction
4.8
/ 5
Category Rank
168
/ 1719
#168 in Power Amplifiers
Price vs Category Average
-13%
Below average
Power Output
15082504
/ W Continuous Average per Channel into ohms; W Continuous Average per Channel into ohms
Who it's for
- Audiophiles driving demanding, low-impedance loudspeaker loads
- Listeners seeking expansive soundstages with natural musicality
- Collectors prioritizing long-term reliability and reference-grade construction
Who should skip it
- Users with limited space or poor ventilation options
- Owners with standard audio racks or limited physical assistance
- Budget-conscious buyers seeking entry-level or mid-range components
Performance breakdown
Power Delivery
Massive current reserves effortlessly drive even the most demanding speaker loads.
Sonic Transparency
Minimal distortion ensures the original recording remains pure and uncolored.
Build Integrity
Heavy-duty construction reflects a commitment to long-term reliability and performance.
Dynamic Control
Exceptional responsiveness captures every subtle shift in musical intensity.
Connectivity Versatility
Balanced XLR and standard RCA inputs accommodate diverse high-end audio setups.
Operational Flexibility
Bridgeable mono mode provides significant power scaling for serious audiophile systems.
Key Specs
Power Output
150W Continuous Average per Channel into 8 ohms; 250W Continuous Average per Channel into 4 ohms
Mono Output
450W Continuous Average into 8 ohms; 600W Continuous Average into 4 ohms
Frequency Response
20Hz to 20kHz ±0.5dB -3dB at 70kHz
Distortion
<0.03% THD at rated output power
Current Output
50A short duration peak per channel (Fuse protected)
Hum & Noise
100dB below rated output (20Hz to 20Hz A weighted)
Input Impedance
47 ohms
Dimensions
Height: 220mm (8.75″), Width: 510mm (20″), Depth: 455mm (18″)
Features
- Evolutionary design based on acclaimed SA series
- High power output in stereo and mono
- Responsive control with pure clarity
- Signature Plinius aesthetic
- Updated componentry and power supply
- Detailed audio replication
- RCA and XLR inputs
What customers say
The Plinius Reference RA-150 Power Amplifier earns high praise for its authoritative sound and exceptional control over demanding speakers. Owners consistently note its detailed, transparent sonic signature that maintains musicality, providing a nonfatiguing experience even during long listening sessions. The build quality is universally lauded, feeling premium and robust, suggesting a lasting investment. While positioned in the luxury category, most users feel the performance fully justifies the cost, viewing it as an end-game component that elevates their audio system. Minor concerns regarding physical size and heat are generally accepted trade-offs for the superior performance delivered.
Know before you buy
Yes, the RA-150 is bridgeable. In mono mode, it delivers a substantial 450W into 8 ohms and 600W into 4 ohms for demanding speaker setups.
Yes, it is equipped with both XLR inputs for balanced connections and RCA inputs for standard unbalanced connections, offering flexibility for various preamplifier setups.
The amplifier is designed to operate in both Class A and Class AB modes, allowing you to balance the refined, warm sound signature of Class A with the efficiency of Class AB.
No, the RA-150 is not designed for rack mounting. Given its 38kg weight and dimensions, it is best suited for a sturdy, dedicated audio stand or shelf.
No, the RA-150 is a dedicated power amplifier and does not include an integrated digital-to-analog converter or a remote control.
The amplifier is optimized for speakers with an impedance of 4 or 8 ohms, providing 150W per channel into 8 ohms and 250W per channel into 4 ohms.
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$7200