NuPrime PRA-9X
Original price was: $ 1,195.00.$ 1,075.00Current price is: $ 1,075.00.
NuPrime PRA-9X is a pre-amplifier with a fully balanced design and includes a MM phono input. The input and output use a special audio Relay Switch, which has the lowest interference and highly accurate transmission, to switch the source.
The phono input has a variety of settings for input resistors and capacitors to match different MM cartridges. PRA-9X phono amplifier is a 2-stage RIAA amplifier that utilises NJR MUSES8820 audio quality op-amp to provide an accurate RIAA curve and low distortion at high amplification and performance.
Line Outputs include four NuPrime’s new ultra-low distortion amplifier modules (THD=0.0004%) composed of MUSES8820 op-amp in a new amplifying circuit. It has excellent ultra-low distortion and high driving force characteristics.
Features
- LP vinyl RIAA phono amplifier circuit, with adjustable input capacitance and impedance.
- Input and output fully balanced preamp.
- Utilizing the MUSES8820 bipolar-input dual op-amp module, PRA-9X can reproduce the presence of an orchestra as experienced in a symphony concert and the breathing sound of a player in a live music house.
- NuPrime’s next generation current booster circuit, providing top 0.0004% (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.
Specifications
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
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)
- Worldwide AC voltage: (90VAC~130VAC // 210VAC~250VAC) With Voltage Select Switch
- AC Fuse: Slow-blow, T1A, 250VAC
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