NuPrime AMG PRA
NuPrime AMG PRA
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 dual 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 hardened 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.
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 the volume
Specifications
- Frequency Response: 10Hz to 200kHz; +-0 to -0.1dB
- THD: 0.008%
- Input Impedance:
- Balanced IN: 1M Ohms @ 10 Hz ~ 200 kHz
- Line IN: 1M Ohm @ 10 Hz ~ 200K Hz
- Rated Output Voltage: 2V (LINE) / 4V (BAL) @ 100 Ohm
- Volume level 92 is 0dB input = output
- S/N: 95dB
- Loudness Compensation:
- 2.2 dB (125 Hz)
- 4.5 dB (100 Hz)
- 5.3dB (75Hz)
- Gain : 3.2 (High) / 2.1 (Low)
If you shop for more than SEK 490, we will ship free of charge! (within Sweden).
If ordered before 3pm on weekdays, we will ship the same day, provided the item is in stock. Normal delivery time is 1-5 working days, but in case of high order intake or ordering of certain products, delivery may take longer. Should any of the goods you ordered be out of stock, we will notify you as soon as possible.
We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 14 days of delivery. When exchanging or purchasing a new item in connection with a return, we offer the return shipping.
What does our stock status mean?
- In stock - Shipped immediately the same day if order is received before 3pm (weekdays)
- 3-8 days - Available in stock at supplier and ordered home immediately
- 4-12 days - Available in stock at supplier and ordered home immediately
We offer a guarantee of at least 2 years for all products, and some goods are covered by an extended guarantee of up to 5 years. This way you avoid costly insurances and can be safe as a customer. If there is a problem during the warranty period, please contact us, and we will solve it quickly and smoothly.
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- Fast deliveries: Orders received before 3pm are shipped the same day
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- Price Guarantee to ensure our customers get the best possible deal
- Fast & professional customer service via e-mail and phone. (answer to e-mail within 24h)