NuPrime PRA-9X Preamplifier

Preamp Designed for Demanding Analog Lovers

The NuPrime PRA-9X is a fully balanced preamplifier designed for ultra-low distortion performance. It includes a MM phono input and a 1/4" (6.3mm) headphone output. With its impressive dynamic range and exceptional resolution of detail, the PRA-9X can reproduce the full, powerful presence of an orchestra as experienced in a symphony concert as well as the subtle breath of a musician in an intimate concert setting. With appropriate source material, the realism is phenomenal.

Designed with the most demanding analog lovers in mind, the inputs consist of two stereo RCA pairs, one stereo XLR pair, and one phono stage input RCA pair. Outputs consist of one stereo RCA pair and one stereo XLR pair, plus a front-panel 1/4" headphone jack.

Lowest Distortion Fully Balanced Design

Not only does the PRA-9X take maximum advantage of a fully balanced design, but it also provides for its input and output a special audio relay switch, which has the lowest interference and highly accurate transmission during source switching. This is just one example of the attention to circuit detail which NuPrime brings to this exemplary preamp.

MM Phono Stage That's Built to Thrill

The PRA-9X has a built-in high quality moving magnet phono stage that is designed to thrill. The phono input has a variety of settings for input resistors and capacitors to match a wide range of different MM cartridges. The phono amplifier section is a two-stage RIAA amplifier that utilizes the NJR MUSES8820 audio quality op-amp to provide an accurate RIAA curve and low distortion at high amplification for top performance.

In addition to the built-in phono preamp, the PRA-9X is equipped with a premium headphone amplifier. Connect your favorite pair of headphones with standard 1/4" (6.3mm) plug and enjoy a new level of intimate listening.

Expertly Engineered from Input to Output

Expertly engineered from input to output, the PRA-9X includes line outputs using four of NuPrime’s new amplifier modules, which boast an unbelievably low Total Harmonic Distortion (THD) of only 0.0004% at 7.5Vrms. These are composed of MUSES8820 bipolar-input op-amps in a new amplifying circuit that has excellent ultra-low distortion and high driving force characteristics. NuPrime’s next generation current booster circuit provides an excellent 114dB Signal-to-Noise Ratio (S/N).

The easy-to-read front panel display shows status of input source selection and volume control setting, which can be changed with the included ergonomically designed wireless remote. An input and output trigger offer power on/off control for convenient system integration.

Product Features

Overview

Audiophile preamp purposely designed for analog lovers
Fully balanced form input to output
LP vinyl RIAA phono amplifier circuit with adjustable input capacitance and impedance
Premium MUSES8820 bipolar-input dual op-amp module
NuPrime’s next generation current booster circuit provided top 0.0004% at 7.5Vrms THD performance and 114dB signal-to-noise ratio (S/N)
High-performance headphone amp output
Input and output Trigger for power on/off control of multiple devices
Includes wireless remote

Inputs

1 x Phono Stage
2 x Analog Stereo RCA
1 x Analog Stereo XLR

Outputs

1 x 6.3mm headphones out
1 x pair of stereo RCA out
1 x pair of stereo XLR out

Product Specs

Phono Stage

Input resistance: 32K ohm / 47K ohm / 100K ohm
Input capacitance: 100 pF / 220 pF / 320 pF
MM Input Sensitivity: 4.0 mV @ 1KHz
GAIN: MM input to LINE output (Vol./Max.) => 50dB @ 1KHz

PRE Stage

Input resistance: 20K ohm
Output resistance: 10 ohm
THD+N: 0.0004% @ 7.5V Vrms
S/N ratio >115dB @ 7.5V Vrms
Frequency Response: 0Hz to 50KHz (0.2dB), 200KHz (-3dB)
GAIN: LINE input to LINE output (Vol./Max.) => 17dB @ 1KHz

Headphone Stage

560mW @ 32 ohm / 110mW @ 600ohm
THD+N: 0.004% @ 32 ohm / 480mW, 0.0015% @ 600 ohm / 100mW
S/N ratio >110dB @ 32 ohm / 450mW
Frequency Response: 0Hz to 50KHz (0.2dB), 200KHz (-3dB)
GAIN: LINE input to LINE output (Vol./Max.) => 17dB @ 1KHz
Dynamic Range > 115dB

Dimensions and Weight

Dimensions (W x H x D): 235 mm x 55 mm x 281 mm
Weight: 5.5 pounds (2.5 kg)

Product Warranty

1 Year

Parts & Labor

NuPrime Warranty Information

Product Manual

	NuPrime PRA-9X User's Manual (PDF Format)

Audio Advisor occasionally has fantastic deals on clearance items that are in excellent condition and we happen to have just one or two of.

Demo: Photo samples, gear we auditioned, items returned for wrong color/wrong size, etc.

Open Box: Contents briefly examined or inspected for promotional or internal purposes

Factory Refreshed: Original-condition items repackaged by the manufacturer

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