NuPrime STA-9 Effektförstärkare Slutsteg Svart
NuPrime STA-9 Effektförstärkare Slutsteg Silver
NuPrime STA-9 Effektförstärkare Slutsteg
NuPrime STA-9 Effektförstärkare Slutsteg Svart
NuPrime STA-9 Effektförstärkare Slutsteg Silver
NuPrime STA-9 Effektförstärkare Slutsteg
NuPrime STA-9 Effektförstärkare Slutsteg Svart
NuPrime STA-9 Effektförstärkare Slutsteg Silver
NuPrime STA-9 Effektförstärkare Slutsteg
NuPrime STA-9 Effektförstärkare Slutsteg Svart
NuPrime STA-9 Effektförstärkare Slutsteg Silver
NuPrime STA-9 Effektförstärkare Slutsteg

NuPrime STA-9

Regular price 9 990 kr
Sale price 9 990 kr Regular price 9 990 kr
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    Free shipping on orders over 1000:- (within Sweden)

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    Return within 14 days of delivery
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 disadvantages and limitations of tubes. The STA-9's large, transparent, dynamic, and luxuriously textured soundstage is an experience.

  • Single End Class A + D amplifier
  • Bridgeable which allows switching between stereo or mono mode.
  • Improved H2 circuit (Even Order Harmonic) that resembles the most attractive characteristics of tube amplifiers without their disadvantages and limitations.
  • Very reliable in unloaded 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 cross-connecting capacitors, resulting in a frequency response at DC level for a pure music experience.

The STA-9 amplifier is based on ULCAM (Ultra Linear Class A Module) + Class D design, which was 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 rich, tube-like sound with the remarkable speed and clarity of NuPrime's Class D design. Audio enthusiasts are sure 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 well above the compact disc's 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 ring core 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 response 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 for bridging 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, the STA-9's innovative bridging circuit employs a design called Single-Ended Direct-Inject Bridge Technology, where the mono mode, in addition to delivering more than double the power, sounds livelier and more dynamic.

The NuPrime sound:
  • Wide soundstage
  • "Bred, lightning-fast dynamics"
  • Ultra-low distortion and noise
  • "Music emerges from a pure and untainted background, with clear details and intact nuances."

In summary, NuPrime's sound character clearly differs from - and even surpasses - the soft, pleasant sound that we often associate with most tube amplifiers or the dry, clinically edgy sound that we often associate with solid state and switch 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 details, and a completely open, fully dimensional soundstage against a backdrop of miles of 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:
  • Effect: 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 ohm
  • Input sensitivity: 232.8mV, 1W @ 8 ohm; 1.4V to nominal power
  • Reinforcement: x 22 (x 42 for mono)
  • Signal/brus 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
  • Voltage selection 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 energy consumption in idle mode is under 16W.
Shipping & Returns

If you shop for more than €150, we will ship free of charge!

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

Safe Shopping

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.

- Versatile payment options and secure transactions. Invoice or partial payment with Klarna, card payment, etc.
- Fast deliveries: Orders received before 3pm are shipped the same day
- Safe delivery of products with reliable logistics partners (DHL & UPS)
- 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)

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