NuPrime PRA-9X Preamplifier

Fully Balanced, Without the Flagship Price

Fully balanced preamplifiers, where the signal travels as mirrored pairs from input to output, usually live in audio's upper price tiers. The NuPrime PRA-9X brings that architecture down to earth: four of NuPrime's new ultra-low-distortion amplifier modules run the balanced path with MUSES8820 op-amps, measuring a vanishing 0.0004% distortion with signal-to-noise above 115dB and frequency response flat from 0Hz to 50kHz within ±0.2dB.

Volume is handled the clever way: digitally controlled, analog in the signal path, stepping in fine 0.5dB increments through high-conductivity switches across four independent channels. You get the precision of digital control with none of its sonic penalty, and the preamp even remembers your volume setting for each input.

Inputs cover balanced XLR, two RCA pairs, and a phono stage; outputs mirror them with both XLR and RCA pairs feeding your power amplifier, plus trigger connections to wake the rest of the rack.

A Phono Stage You Can Actually Tune

Where many built-in phono stages are fixed, the PRA-9X invites adjustment: its moving-magnet input offers selectable resistance of 32k, 47k, or 100k ohms and capacitance of 100, 220, or 320pF, so you can load your cartridge exactly as its maker intended. Gain is a healthy 50dB with 4.0mV sensitivity.

A 6.3mm headphone output delivers 560mW into 32 ohms and 110mW into 600 ohms, enough for most headphones on the shelf. All of it fits a compact half-width chassis of 6.6 pounds, in black or silver, sized to stack with NuPrime's matching STA-9X power amplifier.

What Reviewers Are Saying

Totally Wired, NuPrime's longtime New Zealand specialist, wrote of the PRA-9X: "From the first notes I've been struck by the clarity, verve and agility of the presentation," calling it "a simply awesome preamplifier at a highly competitive price" and noting the phono stage now "competes with any serious separate phono stage."

Who Is This Preamplifier Best For?

• You want balanced architecture on a budget — fully balanced XLR paths at a fraction of flagship cost.
• You play vinyl and like to tinker — adjustable resistance and capacitance dial in your MM cartridge.
• Your rack space is tight — half-width and 6.6 pounds, sized to stack with NuPrime's STA-9X.
• You listen on headphones too — a built-in output drives most headphones with ease.
• If you run a moving-coil cartridge, the PRA-9X's phono stage is MM-only — Parasound's Halo P6 handles MC as well.

How Does It Connect to Your System?

Connect the balanced XLR or RCA outputs to your power amplifier, and use the trigger jacks so both switch on together. Your turntable joins the phono input, with the loading switches set to match your cartridge. Line sources fill the XLR and RCA inputs, and headphones plug into the front panel. The remote handles volume in half-decibel steps from the couch.

Compact box, full-size architecture, and every setting where you can reach it.

Pairs Well With

Building around the PRA-9X? Here are some great companions:

• Turntable: Put that tunable phono stage to work — see our Turntables.
• Headphones: The front-panel output invites a good pair — see our Headphones.
• Cables: Quality XLR interconnects feed your power amp — see our Interconnect Cables.
• Audio Rack: A tidy home for a compact stack — see our Audio Racks.

Frequently Asked Questions

What does "fully balanced" mean?

The signal travels as mirrored positive and negative halves through the whole preamp, canceling noise that creeps in along the way.

Can I connect a turntable?

Yes. The moving-magnet phono input offers 50dB of gain with selectable resistance (32k/47k/100k ohms) and capacitance (100/220/320pF).

Does it have a headphone output?

Yes, a 6.3mm jack delivering 560mW into 32 ohms and 110mW into 600 ohms.

How does the volume control work?

Digitally controlled but analog in the signal path, stepping in 0.5dB increments across four independent channels, with per-input volume memory.

What finishes are available?

Black or silver.

What warranty does it carry?

NuPrime covers the PRA-9X with a 1-year warranty.

See It in Action

nowakAudio walks through the PRA-9X with its 9X series siblings (Polish audio, with the hardware on full display):

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Learn More

Want to learn more about preamplifiers, phono stages, or building a balanced system? Visit our Learning Center for guides, tips, and expert advice.