NuPrime ST-10, Manual

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NuPrime
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NuPrime ST-10 Reference LE Class Amplifier
The “LE” of Reference LE designates near-reference-class performance. The fourth generation
(V4 amplifier module) of this patented amplifier design outperforms its predecessor in several
aspects:

It lowers the noise floor by an astounding 20dB and elevates the output stage to 85%
efficiency.

Shortened circuit pathways result in a 20% improvement in through-put.

Improved reliability in no-load condition and short circuit protection.

Increased output current drive capability for low impedance speakers.

Increased switching frequency to 700 KHz and an improved musical sampling rate.

Improved S/N ratio and dynamic range.

New linear power supply with a high-efficiency toroidal transformer. Reduced high-
frequency noise and strengthened low-frequency performance.

Signal path avoids cross-linking capacitors, thus achieving a frequency response at DC
level for pure musical enjoyment.

Enhanced even-order harmonic (H2) circuitry resembling the most attractive features
of tubed-amp sound without its drawbacks and limitations.
The NuPrime Sound

Vast soundstage

Wide, lightning-fast dynamics

Ultra-low distortion and noise

Music emerges from a pristine background, with delicate details and nuances intact
In summary, NuPrime’s sonic character stands well apart from – and indeed above – the soft,
cushy sound we often associate with most tubed amplification and the dry, clinically edgy
sound we often associate with solid-state and switching technology. Rarely does an amp
achieve an ideal balance of richly textured timbres and harmonics, bottom-end authority,
startling dynamics, exquisite low-level detail, and a fully revealed, fully dimensional
soundstage against a backdrop of mile-deep silence.