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NuPrime STA-9X

NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps
NuPrime STA-9X - Poweramplifier (stereo), Mono amps

NuPrime STA-9X, a 2 X 130 W class A+D stereo output stage, bridgeable to a 330 W mono amplifier. Designed with an improved harmonic circuit that mimics the most attractive features of tube and Class A amplifiers without suffering their drawbacks and limitations. The STA-9X's frequency response up to 50 kHz elevates vocals to an emotional experience, and the upper registers of the instruments mimic the shimmering highs of a live performance.
The sound is a little warmer than the STA-9, with significantly better dynamics, resolution and speed. The 9X delivers 130% more power than its predecessor.

The STA-9X amplifier is an evolution of the ULCAM (Ultra Linear Class A Module) Class D design of the STA-9 with design concepts from AMG-STA. By combining a robust, high-impedance amplifier circuit in the preamplifier stage with a dual-feedback Class D power stage, the STA-9X delivers a warm and dynamic sound with remarkable speed and clarity. The NuPrime improves on the traditional Class-D switch design by using a self-oscillating circuit to generate pulse-width modulation. The STA-9X switches at a frequency of 750 kHz (the highest on the market), which is well above the CD sampling rate of 44.1 kHz. Most Class D amplifiers switch at 300 kHz or lower.

The ensemble is complemented by NuPrime's new linear power supply with high-efficiency toroidal transformer for reduced high-frequency noise and improved low-frequency performance. The damping effect of the NuPrime's proprietary isolation feet absorbs and cancels vibrations that degrade audio performance. The overall result is an unrivaled transient speed and an amazing level of dynamic power.
In summary, the NuPrime STA-9X has a soundstage that is generous, transparent, dynamic, luxuriously textured with exquisite upper register.

Features:

  • The STA-9X Single End Non-Negative Feedback Class A and Dual Feedback Class D amplifier design is improved over the STA-9 and is derived from the AMG STA. This design allows the STA-9X to produce more detail and higher resolution than the STA-9.
  • Stereo mode can be bridged to mono mode.
  • Improved circuit for harmonic overtones that create warmth and natural sound characteristics.
  • Highly reliable in no-load condition and improved short-circuit protection.
  • 130% higher output current than STA-9 allows low impedance speakers to have better dynamics and power.
  • It operates at 750 kHz switching frequency and provides high resolution with extended frequency.
  • A new linear power supply with a high-efficiency toroidal transformer reduces high-frequency noise and improves low-frequency performance.
  • The signal path avoids cross-linking capacitors, providing a DC-level frequency response for pure musical enjoyment.


NuPrime sound:

  • Wide soundstage
  • Wide, lightning-fast dynamics
  • Ultra-low distortion and noise
  • Music emerges from a pristine background, with attention to detail and preserved nuances
  • In summary, the NuPrime's sonic character is distinctly different from - and even above - the smooth, pleasing sound we often associate with most tube amplifiers or the dry, clinically edgy sound we often associate with solid state and switching technology. Rarely does an amplifier achieve an ideal balance of richly textured timbres and overtones, authority in the low end, stunning dynamics, exquisite low-level detail, and a fully apparent, full-dimensional soundstage against a backdrop of mile-wide silence.


Specifications:

  • Inputs:
  • RCA: Unbalanced input x 1
  • XLR: Balanced input x 1
  • TRIGGER IN (12V)
  • Outputs:
  • Stereo speaker output x 1
  • Mono speaker output x 1
  • TRIGGER OUT (12V)
  • Power: 2 X 130W / 1 X 330W @ 8 ohms
  • Peak output power: 2 X 170W / 1 X 370W @ 8 ohms
  • Input impedance: 47k ohms
  • Gain: x 28.5
  • Signal to noise ratio: > 90dB at 1W, 10W, 100W
  • THD+N: 0.005% (Stereo) / 0.005% (Mono)
  • Frequency response: 10Hz to 50kHz
  • AC voltage worldwide: (115 VAC / 230 VAC) with voltage selector switch
  • AC Fuse: Slow, 3A, 250VAC
  • Dimensions: 235mm W x 281mm D x 60mm H (including feet)
  • Weight: 4 kg
  • Color: Black or silver

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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.

We provide at least a 2-year warranty on all products, some products have up to a 5-year warranty. With this, you avoid expensive insurances and can feel safe as a customer. In case of problems during the warranty period, contact us and we will solve it quickly and smoothly.


Aune: 2 years

Denon: 2 years

Marantz: 2 years

NuPrime: 2 years

Sbooster: 2 years

Taga Harmony: Passive speakers 5 years

Take Harmony Electronics: 2 years

Take Harmony Cables: 5 years

Quadral: Passive speakers 5 years

Xindak: Cables 5 years


Other products see the manufacturer's warranty.


ATTENTION!

The 2-year warranty does not apply to headphones, demo/service copies or consumables, in these cases the manufacturer's warranty applies. On demo and service copies, the warranty period is stated on the product page.

Lamp warranty

If the lamp for your projector breaks during the first 12 months, or the first 1000 hours (whichever comes first), you will receive a new lamp free of charge. If the manufacturer has a more generous warranty, it applies.