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Nuprime AMG PRA is the latest addition to the family and one of Nuprime's finest advances. A stripped-down and clean preamp without built-in DAC, where the focus is on gentle handling of the music signal. We highly recommend twin AMG STA power stages to not hold back the reproduction, also the Evolution One and is an excellent partner to this pre stage.
Something new and unusual on the market is tonal adjustment in 4 steps to match your taste and electronics. It is not a traditional tone control and does not affect sound quality.
The AMG PRA went beyond being a transparent preamp with 1M Ohm input impedance and the best analog source inputs. A user-selectable 4 stage “Active Low Frequency and Harmonic Gain” control gave it distinctive characteristics to enhance the speaker performance, a world-first in preamp design.
The AMG series front panel embodies its spirit. It is milled from a 15mm harden aerospace aluminum alloy using a four-axis CNC machine with a diamond cutter through a 48 steps process. Design elements such as the 3D “floating” logo, the curved surface around the front panel switch, and diamond-cut edge bring the quality of ultra-high-end audio products to the affordable range of the AMG series.
The design goal for AMG PRA was to deliver a transparent sounding analog preamp with its distinctive characteristics. Several new design concepts were developed and used in the AMG-PRE besides 1MΩ input impedance to achieve the best analog inputs.
Users of smallish speakers would often detect a distinct drop in bass response with some audio tracks. Instead of a simple “Bass Boost” function that lifts a targeted low-frequency band, a user-selectable 4 stage “Active Low Frequency and Harmonic Gain” control compensates for the lack of bass presence. It achieves some bass extension and a more natural roll-off.
Additional features such as the 2 stage gain control and invertible phase control increase the compatibility of the AMG-PRA with other power amplifiers.
Technical Details
The layout of the AMG-PRA takes excellent care in isolating the sensitive audio signals from the power circuitry. The power circuitry comprising of a star topology power and ground layers is built on one board while a separate board houses the pre-amplification circuit. An isolation layer separates these two boards, which further minimizes interference. The effect is a highly transparent sound that is natural and not over etched.
MUSES72320 Digital Volume Control
ONE MEGA ultra-wide bandwidth low noise JFET, single-ended Class A input design and MUSES8920 Op-amp produce harmonics similar to vacuum tube amps, which has a “warm, airy and velvety” sound characteristic.
Non-feedback low-frequency domain Frequency Harmonic Modulation circuit provides minimum phase distortion and tone error.
Inputs and outputs are fully balanced design.
Front Panel Settings
Left Toggle Switch: Output Gain
- Upwards : High Gain
- Downwards : Low Gain
Right Toggle Switch: Output Phase
- Upwards : Phase Invert
- Downwards : Phase Normal
Left knob: Loudness Compensation
- Turn the knob to switch between Loudness Compensation
Right Knob: Power and Input Selector and Volumes
- Briefly press for 3 sec to On/Off standby mode
- Brief press to Input Selector
- Turn the knob to adjust volume
AMG Remote Control
Specifications
- Frequency Response: 10Hz to 200kHz; +-0 to -0.1dB
- THD: 0.008 %
- Input Impedance:
- Balanced IN: 1M Ohm @ 10 Hz ~ 200 kHz
- Line IN: 1M Ohm @ 10 Hz ~ 200K Hz
- Rated Output Voltage: 2 V (LINE) / 4V (BAL) @ 100 Ohm
- Volume level 92 is 0dB input = output
- S/N: 95 dB
- Loudness Compensation:
- 2.2 dB (125 Hz)
- 4.5 dB (100 Hz)
- 5.3 dB (75 Hz)
- Gain : 3.2 (High) / 2.1 (Low)
Remote Control Code
CUSTOM CODE 0X06
— KEY CODE—
POWER ON / OFF 0X04
MUTE 0X05
VOLUME DOWN 0X06
VOLUME UP 0X02
CH 1 0X07
CH 2 0X03
CH 3 0X09
CH 4 0X08
Buy&Try applies to the entire Aune, Auralic, Quadral, Sbooster & Taga range.
Buy & try gives you as a customer the opportunity to try out the product in your own home environment, instead of standing in a stressful store and trying to form an opinion. Rooms behave very differently and affect the sound in different ways and we give you the opportunity to demo the product for a full 30 days, in your own home.
If for some reason you feel dissatisfied, just contact us and we will help you with the return shipping, you can also take advantage of our shipping agreements with lower prices. Costs that will be charged to the customer are the shipping to the customer and the return shipping to us at MYC HiFi. For return approval, the item must be returned in new condition and in the original packaging.
Regarding speakers, be aware that speakers may need a long recording time to come into their own. After a couple of hours you can usually get a taste of what to expect, but a speaker deserves 100h+ before serious listening. The speakers we sell with ribbon tweeters need several hundred hours before they start to sing. So feel free to leave the speakers on around the clock so you can quickly accumulate hours.
If you have any questions or concerns, do not hesitate to contact us.
- Buy & Try applies to goods that are normally kept in stock and not to order goods, unless otherwise agreed.
-300x300w.jpeg "Demo - NuPrime Omnia S1")
