Parasound NC 2125v2 150W 2CH Stereo Power Amplifier, THX Ultra2, Bridgeable

The Parasound NC 2125v2 is the compact entry into Parasound's NC Series stereo power amplifier range, delivering 150 watts per channel into 8 ohms, 225 watts into 4 ohms, and 400 watts bridged into mono in a slim 2U chassis. It is THX Ultra2 certified and carries the same practical feature set as the larger NC 2250v2.

A rear-panel load selector extends 4 ohm rated performance to 2 ohm loads. Two pairs of speaker outputs with front-panel A/B buttons and a rear-panel lockout switch provide flexible speaker switching between two pairs of speakers. A high-pass filter switchable at 20Hz or 40Hz protects speakers in bi-amplified or subwoofer-integrated setups. Per-channel rear gain controls and automatic turn-on via 12V trigger or audio sensing with a looping trigger output complete the integration options. ProHiFi is an authorised Parasound dealer in India.

The AC voltage selector on the rear panel covers 115V and 230V, confirming full India mains compatibility. HiFi Voice Czech Republic described it as dynamic, precise, and detailed, with sufficient power in reserve at high volumes and no loss of resolution at low-level listening. Owners in the Parasound Preferred Pair community have noted it drives KEF R3 Meta speakers with ease, noting tight and fast bass, refined treble, and a natural, full midrange.

Key Features

• 150W x 2 into 8 ohm; 225W x 2 into 4 ohm; 400W bridged mono
• THX Ultra2 certified; Class AB fully discrete circuitry
• 35A peak current per channel
• 2 ohm stable with rear load selector switch
• Two pairs of speaker outputs with front panel A/B switching
• Rear-panel lockout switch disables front A/B buttons
• High pass filter switchable at 20Hz or 40Hz
• Per-channel rear gain controls
• 12V trigger with looping output; audio sensing auto-on (2 levels)
• Gold-plated RCA inputs; heavy-duty 24k gold-plated 5-way speaker terminals
• 115/230V rear panel selector; India 230V compatible
• 2U chassis; 437 x 107 x 406mm; 12.3kg; Black

Warranty:

3-year manufacturer's warranty

Why Consider the Parasound NC 2125v2

The NC 2125v2 is the right choice for listeners who want THX Ultra2-certified stereo amplification with real-world practical features in a compact, affordable package. Compared to the NC 2250v2, it gives up peak power (150W vs 275W) but retains every practical feature, including dual speaker A/B switching, 2 ohm load selector, switchable high-pass filter, looping 12V trigger, and rear gain controls, in a 2U chassis that costs and weighs less. For systems where 150 watts is sufficient, it is the more economical and space-efficient choice. The 400W bridged mono mode and 115/230V rear selector make it a flexible and future-ready foundation.

Ideal for

• Home cinema and music systems wanting THX Ultra2 stereo power at an entry price
• Systems with two pairs of speakers needing A/B switching from a single amplifier
• Bi-amplified setups using the built-in high-pass filter for speaker protection
• Compact rack installations requiring a 2U chassis with 12V trigger looping
• Speakers with 2 ohm impedance dips requiring the load selector switch
• Those wanting bridgeable mono at 400W for a future monoblock upgrade path

Technical Specifications