NuPrime STA-9 Effektförstärkare Slutsteg Svart
DEMO - NuPrime Omnia S1 Nätverksspelare
NuPrime STA-9 Effektförstärkare Slutsteg
NuPrime STA-9 Effektförstärkare Slutsteg Svart
DEMO - NuPrime Omnia S1 Nätverksspelare
NuPrime STA-9 Effektförstärkare Slutsteg

NuPrime STA-9

Regular price 6 990 kr
Sale price 6 990 kr Regular price 9 990 kr
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Save 3 000 kr
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Tillverkare: NuPrime
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    Orders placed before 3 PM on weekdays are shipped the same day - Free shipping on orders over 1000:- (within Sweden)

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NuPrime STA-9 Effektförstärkare Slutsteg Svart

NuPrime STA-9

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Product description
NuPrime STA-9 is a 2 X 120 W class A+D stereo power amplifier, bridgeable to a 290 W mono amplifier. Designed with an improved harmonic circuit that mimics the most attractive characteristics of tube amplifier sound without suffering from the tubes' disadvantages and limitations. The STA-9's large, transparent, dynamic, and luxuriously textured soundstage is an experience.

  • Single End class A + D amplifier
  • Bridgeable, allowing switching between stereo or mono mode.
  • Improved H2 circuit (Even Order Harmonic) resembling the most attractive characteristics of tube amplifiers without their disadvantages and limitations.
  • Highly reliable in no-load condition and improved short-circuit protection.
  • High output current for speakers with low impedance.
  • Linear power supply with a high-efficiency toroidal transformer. Reduced high-frequency noise and improved low-frequency performance.
  • The signal path avoids coupling capacitors, providing a DC-level frequency response for a pure music experience.

The STA-9 amplifier is based on ULCAM (Ultra Linear Class A Module)+Class D design first introduced in the IDA-8. By combining a powerful, high-impedance amplifier circuit in the preamplifier stage with a well-integrated class D power stage, the STA-9 delivers a full, tube-like sound with the remarkable speed and clarity of NuPrime class D design. Audio enthusiasts are guaranteed to be impressed.

The NuPrime amplifier circuit improves the traditional class D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 550 kHz, which is far above the compact disc sampling frequency of 44.1 kHz. Most class D amplifiers switch at 300 kHz or lower. The ensemble is complemented by NuPrime's linear power supply with a high-efficiency toroidal transformer for reduced high-frequency noise and better low-frequency performance. The damping effect of NuPrime isolation feet absorbs and interrupts vibrations that degrade sound performance. The overall result is an impressive transient speed and an almost shocking level of dynamics.

How did STA-9 mono achieve better sound characteristics, besides more power than STA-9 stereo?
The standard method to bridge a stereo amplifier to mono uses a series of op-amps (OPA) to invert the input signals to one of the stereo amplifiers, thereby creating an opposite phase, which can then be combined to increase power. Conversely, STA-9's innovative bridge circuit uses a design called Single-Ended Direct-Inject Bridge Technology, where the mono mode, besides delivering more than double the power, sounds livelier and more dynamic.

The NuPrime sound:
  • Expansive soundstage
  • Wide, lightning-fast dynamics
  • Ultra-low distortion and noise
  • The music emerges from a pure and unaltered background, with clear details and intact nuances

In summary, NuPrime's sound character clearly differs from — and even surpasses — the soft, pleasant sound we often associate with most tube amplifiers or the dry, clinically edgy sound we often associate with solid state and switching technology. It is rare for an amplifier to achieve an ideal balance between richly textured timbres and overtones, authority in the bass register, high dynamics, exquisite low-level detail, and a completely open, full-dimensional soundstage against a backdrop of vast silence.


Specifications:

  • Inputs:
  • RCA: Unbalanced input x 1
  • XLR: Balanced input x 1
  • Outputs:
  • Stereo speaker output x 1 or
  • Mono speaker output x 1
  • Other:
  • Power: 2 X 120W / 1 X 290W @ 8 & 4 ohm
  • Output power: 2 X 280 W / 1 X 320 W @ 8 & 4 ohm
  • Input impedance: 47k ohms
  • Input sensitivity: 232.8mV, 1W @ 8 ohm; 1.4V to nominal power
  • Gain: x 22 (x 42 for mono)
  • Signal-to-noise ratio: < -95dB at 1W, 10W, 100W
  • Dynamic range: -115dB to 0dB at 1kHz
  • THD+N: 0.02% (Stereo) / 0.01% (Mono)
  • Frequency response: 10Hz to 50kHz
  • AC voltage worldwide: (115 VAC / 230 VAC) with voltage selector switch
  • AC fuse: Slow, 3A, 250VAC
  • Dimensions: 235 mm W x 281 mm D x 55 mm H (including feet)
  • Weight: 4.75 kg
  • Color: Black or Silver
  • In a 230V outlet, the power consumption at idle is under 16W.
Shipping & Returns

Shop for over 990 SEK and we’ll ship for free!

If you order before 3 PM on weekdays, we will ship the same day, provided the item is in stock. Normal delivery time is 1-5 business days, but during high order volumes or for certain products, delivery may take longer. If any of the items you ordered are 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. For exchanges or purchases of a new item in connection with a return, we cover the return shipping cost. Please note, however, that there are exceptions where free return shipping does not apply, such as large and heavy items or expensive shipping relative to the item’s value. This is decided on a case-by-case basis.

What does our stock status mean?

In stock - Ships immediately the same day if ordered before 3 PM (weekdays)

3-8 days - In stock at supplier and ordered immediately

4-12 days - In stock at supplier and ordered immediately

Secure Shopping

We offer a warranty of at least 2 years on all products, and some items come with an extended warranty of up to 5 years. This way, you avoid costly insurance and can feel secure as a customer. If any issues arise during the warranty period, you are welcome to contact us, and we will resolve it quickly and smoothly.

- Versatile payment options and secure transactions. Invoice or installment payment with Klarna, card payment, etc.

- Fast deliveries: Orders received before 3 PM are shipped the same day

- Secure product delivery with reliable logistics partners (DHL & UPS)

- Price guarantee to ensure our customers get the best possible deal

- Fast & professional customer service via email and phone. (email responses within 24 hours)

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