NuPrime Evolution STA-SE - Stereo power amplifier
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Orders placed before 3 PM on weekdays are shipped the same day - Free shipping on orders over 1000 SEK (within Sweden)
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NuPrime Evolution STA-SE - Stereo power amplifier
NuPrime Evolution STA-SE is a reference-class stereo power amplifier delivering 2 x 400 W into both 8 and 4 ohms. Thanks to its dual-mono design, with completely separate power paths for each channel, crosstalk is kept low and the focus of the soundstage remains precise.
At the heart of the design is NuPrime’s ODC technology (Only Distortion Cancellation), a Class D solution that extracts the error signal directly from the MOSFET circuits and output filter instead of using a global feedback loop. This results in 0.002% THD+N and completely neutral, transparent reproduction. With a switching frequency of 650 kHz, its resolution approaches that of the very best analogue designs.
The power supply uses GaN semiconductors (gallium nitride) with active noise reduction, continuously counteracting interference in the mains voltage—much like noise-cancelling headphones, but on the power side. The power section handles 40 A with 52,000 uF filter capacitors, while the rear panel features Furutech FP900 RCA inputs and highly conductive speaker terminals. The result is an amplifier with Class A warmth in the midrange and the power of a transistor amplifier, without bringing along the heat or weight of either.
Specifications:
- Output power (RMS): 2 x 400 W at 8 ohms and 4 ohms
- Gain: x21
- Sensitivity: 2 Vrms
- Input impedance: 47 kohms
- Output impedance: 4 mohm
- THD+N: 0.0025% at 5W, 0.007% at 50W, 0.01% at 100W
- Signal-to-noise ratio: 95 dB at 5W, 105 dB at 50W, 110 dB at 100W
- Frequency response: 10 Hz to 50 kHz (-3 dB)
- Switching frequency: 650 kHz
- Connections: Furutech FP900 RCA inputs, Eichmann speaker terminals, trigger in/out
- Standby: 1.5 W at 115V, 1.7 W at 230V
- Mains voltage: 115VAC / 230VAC with switch
- Fuse: slow-blow 7A, 250VAC
- Dimensions (HxWxD): 57 x 430 x 375 mm
- Weight: 9 kg
- Warranty: 3 years
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
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.
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