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The pre-owned NuForce Reference 9 V2 Mono Amplifiers and P-9 Preamplifier, available at Len Wallis Audio, are crafted for audiophiles seeking quality audio gear at a great price.
In great condition in black with remote and cables but no packaging, the amplifiers feature V3 upgrades from 2017.
Visit our Lane Cove showroom to experience the Reference 9 V2 and P-9 or enquire online to enhance your audio setup.
Why Choose the NuForce Reference 9 V2 Mono and P-9?
The pre-owned Reference 9 V2 and P-9 Preamplifier offer precision audio performance, providing:
• Powerful Output: 175W at 8Ω, 335W at 4/2Ω per mono amp.
• Clean Signal: P-9 with 100 dB SNR for clarity.
• Versatile Connectivity: Switchable RCA/XLR inputs.
• Compact Design: Aluminium chassis reduces resonance.
• Great Value: Pre-owned quality at an affordable price.
Visit our Lane Cove showroom to explore how the Reference 9 V2 and P-9 elevate your hi-fi system with our team’s expert guidance.
The NuForce Reference 9 V2 Mono Amplifiers and P-9 Preamplifier, in great condition in black with remote and cables, deliver “exceptional clarity and power”. The amplifiers, upgraded to V3 internals in 2017, offer 175W RMS at 8Ω and 335W at 4/2Ω with a 20 Hz–120 kHz response, per specifications.
The P-9’s dual-chassis design isolates power and audio circuits, achieving 0.0004% THD+N at 1 kHz. With switchable RCA/XLR inputs and 100 dB SNR, they pair well with a large variety of speakers. The compact 216 mm wide aluminium chassis reduces resonance.
Users praise their “dynamic, detailed sound,” as per various online reviews. Explore the NuForce Reference 9 V2 Mono Amplifiers and P-9 Preamplifier at our Lane Cove showroom or enquire online.
Have questions? Visit our contact page to connect with our Lane Cove-based team for personalised advice.
Technical Specifications
• Product Type: Mono amplifiers (pair) and preamplifier (pre-owned)
• Condition: Great, black, with remote and cables, no packaging
• Amplifiers: Reference 9 V2 chassis, V3 internals (upgraded 2017)
• Power Output (Amplifiers): 175W RMS (8Ω), 335W RMS (4Ω/2Ω)
• Frequency Response (Amplifiers): 20 Hz–120 kHz (-0.3 dB to -3 dB)
• Gain (Amplifiers): +21 dB
• Input Impedance (Amplifiers): 22 kΩ
• Inputs (Amplifiers): Switchable RCA/XLR
• Outputs (Amplifiers): Speaker binding posts (spade lugs or banana plugs)
• Preamplifier: P-9, dual-chassis design
• Inputs (P-9): 5 RCA (including Home Theater bypass)
• Outputs (P-9): 1 RCA, 1 XLR (unbalanced)
• THD+N (P-9): 0.0004% at 1 kHz, 0.003% at 20–20 kHz, 90 dB (DC–1 MHz)
• Frequency Response (P-9): 20–20 kHz (+0.02/-0 dB), DC–2.5 MHz (+0/-3 dB)
• Maximum Output (P-9): 7V RMS
• Input Impedance (P-9): 10 kΩ
• Output Impedance (P-9): 100 Ω
• Dimensions (Amplifiers): 216 mm x 356 mm x 46 mm (W x L x H, excl. feet)
• Dimensions (P-9): 216 mm x 406 mm x 44 mm (W x D x H, per chassis)
• Weight (Amplifiers): 3.2 kg (each)
• Power Supply: 100–240V, 4A (amplifiers), 230V (P-9)
• Finish: Brushed and anodized aluminium, black
• Compatibility: Hi-fi systems
• Manufacturing: Designed by NuForce, USA
Read the Reviews
• Reference 9 V2 Mono Amplifiers: UltraAudio
• P-9 Preamplifier: StereoTimes
Let us show you the difference a quality amplifier can make with the Reference 9 V2 and P-9 at Len Wallis Audio. Explore our pre-owned collection here or contact our team to audition this setup at our Lane Cove showroom or enquire online.
Len Wallis Audio Excellence Promise
Since 1978, Len Wallis Audio has been Lane Cove’s trusted destination for high-end audio solutions, offering rigorously tested pre-owned products like the NuForce Reference 9 V2 Mono Amplifiers and P-9 Preamplifier with a three-month warranty.
Our expert team provides personalised guidance to seamlessly integrate this setup into your hi-fi system. Visit our Lane Cove showroom to experience the difference or enquire online with confidence.
Discover audio excellence with Len Wallis Audio, where we make your listening journey effortless and extraordinary.
Ready to enhance your audio setup with the NuForce Reference 9 V2 Mono Amplifiers and P-9 Preamplifier?
Call (02) 9427 6755
Email Sales@lenwallisaudio.com.au
Visit us at 64 Burns Bay Road, Lane Cove, NSW, 2066
Generating expert take…
NuForce emerged in 2005 as a California-based innovator in high-end audio, co-founded by engineer Jason Lim, whose prior work at tech giants like Motorola and Oracle informed its pioneering designs. The company quickly distinguished itself by securing three US patents in Class D amplifier technology, establishing a reputation for efficient, high-performance amplification that challenged traditional solid-state approaches. In the early 2010s, Lim spun off its high-end assets into NuPrime Audio in 2014, while Optoma acquired the core NuForce brand around 2015, integrating it into a lineup blending pristine audio with video systems.
NuForce specialized in compact, audiophile-grade components, particularly digital amplifiers, DACs, and wireless streaming solutions tailored for home cinema and hi-fi setups. Its portfolio emphasized modular separates—preamps, power amps, and integrated units—alongside headphones, cables, and accessories that prioritized clarity and power efficiency. Post-acquisition, the focus expanded to complement Optoma projectors, though the brand retained its core strength in Class D tech for both stereo and multi-channel applications.
Positioned as a mid-tier disruptor, NuForce earned acclaim from outlets like The Absolute Sound for value-driven performance that punched above its price, appealing to savvy buyers seeking modern efficiency without ultra-premium excess. Though less prominent today under Optoma, its legacy endures among enthusiasts valuing innovative, patent-backed amplification in a boutique market segment.
See all NuForce listings on RADAR.
