What's unique about the brand
NuPrime Audio is known for its proprietary Class-D amplification technology that delivers high power with low distortion through its Only Distortion Cancellation circuit and high switching frequencies of 650kHz. Their amplifiers produce a natural, tonally dense, and warm sound character similar to tube amplifiers, making them particularly appealing to listeners who appreciate the warmth of tubes but want the efficiency of solid state.
What reviewers are saying
We read all the reviews. Here's what reviewers feel most strongly about:
- NuPrime's designs incorporate their proprietary Class D amplification techniques, deviating significantly from off-the-shelf modules by using higher switching frequencies and custom-designed circuits.
- They often include a unique Harmonic Generation Circuit, utilizing Class A transistors, to provide a warmer, more tube-like sound in their solid-state designs.
Our favorite reviewer quotes:
- "It's deeply saturated and full-bodied yet fast, articulate, and nimble. With such perfectly-chiseled bass, it is not unusual for the midrange to break the spell by deviating in solidity or overall character, for instance by being too lean or too forward, or most common, to be hard or even edgy, but this is absolutely not the case here." (https://www.hifi-advice.com/blog/amplifier-reviews/power-amplifier-reviews/nuprime-evolution-sta-stereo-power-amplifier/2)
- "What this amplifier does magnificently well is to lend weight, body, and saturation to instruments, and vocals alike, and with plenty of warmth if needed, but without ever tipping over into mushiness or ever sounding colored in any way. This amplifier sounds full-bodied and it can sound smooth or warm so long as the recording dictates it." (https://www.hifi-advice.com/blog/amplifier-reviews/power-amplifier-reviews/nuprime-evolution-sta-stereo-power-amplifier/2)
- "In this context the NuPrime was able to generate a panoramic soundstage and believable depth perspective. Its level of microdynamic finesse, purity of tone, resolution of individual voices in a complex mix, and rhythmic drive kept me listening late into the night." (https://www.theabsolutesound.com/articles/nuprime-audio-evolution-sta-power-amplifier)
- "The IDA-8's midrange was also something special: exceedingly clean but very full, reproducing voices with clarity and presence while also providing their full weight and body. With the IDA-8, I felt I was hearing everything in Susan Wong's 511 (24/96 FLAC, Evosound) -- not something that I think I have ever said before about an integrated amp costing under $1000." (https://www.soundstagexperience.com/index.php/equipment-menu/682-nuprime-audio-ida-8-integrated-amplifier-dac)
- "The sharp transient attacks, lifelike vocal layers and vibratos, gorgeous horns, and overall high-octane musical energy made me want to jump out of my seat and dance around the room (OK, I did)." (https://www.theabsolutesound.com/articles/nuprime-ida-8-integrated-amplifier)
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Our interview with the brand
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Products
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Lineup comparison
We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.
STA-9
- Positioning: A hybrid Class A+D amplifier offering both stereo and mono operation with a design aimed at delivering warm, tube-like sound at an accessible price point.
- Description: Uses an enhanced even-order harmonic circuit, high switching frequency, and refined linear power supply to produce transparent sound with controlled dynamics. Compared to higher-priced models in the lineup, it provides balanced performance for typical home setups and moderate soundstage needs.
PRA-9X
- Positioning: A fully balanced preamplifier designed for ultra-low distortion and precise phono input processing at an attractive entry-level price.
- Description: Achieves low THD through a specialized audio relay switch and NJR MUSES8820 op-amp circuitry while offering versatile settings for different MM cartridges. Compared to the integrated IA-9X, it emphasizes refined source input quality for users focused on vinyl playback and detailed analog transmission.
IA-9X
- Positioning: An integrated amplifier that combines modern Class-D efficiency with adjustable harmonic generation to allow a choice between a neutral or warmer sound signature.
- Description: Dual-circuit design combines Only Distortion Cancellation with a Harmonic Generation mode, letting users select a sound character that suits diverse musical genres. Compared to the PRA-9X and AMG PRA, it merges amplification and preamplification in one unit.
AMG PRA
- Positioning: A transparent preamplifier that introduces an active low frequency and harmonic gain control feature to enhance bass performance.
- Description: Features a selectable four-stage control that extends low-frequency response without raising overall volume, backed by a fully balanced design and high input impedance. Compared to lower-priced models, it delivers advanced analog source input performance and tone customization.
Evolution STA
- Positioning: A flagship stereo amplifier delivering exceptional distortion cancellation and robust dual-mono performance for demanding audio setups.
- Description: Only Distortion Cancellation (ODC) Class-D design, high switching frequency, and enhanced power supply work together to provide natural sound with superior clarity and controlled dynamics. Compared to the other models in the lineup, it targets users with high expectations for premium sound quality and larger room applications.
Used
Nuprime
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