Description

Product description

Il NuPrime STA-9 is a power final compact stereo which combines two construction philosophies opposte: an entry stage in Class A with JFET configuration single-ended and a power stage in Class DThe result is a stamp warm and full-bodied, close to that of a hi-fi tube amplifier, but with speed, control and the efficiency typical of the technology digital.

Delivers 2 x 120W into 8 and 4 ohms in stereo configuration, but thanks to the switchable bridge function via selector it turns into a monophonic final capable of 290 W per channel. This makes it ideal for both as a single stereo amplifier, both in couple to make a system dual-mono or for projects bi-amplification. Who's wondering? What is the best compact power amplifier for driving difficult speakers? find an answer in STA-9 concrete: the high output current It also allows him to control cash registers low impedance.

The heart of the project is the module ULCAM (Ultra Linear Class A Module), already introduced on the IDA-8 integrated circuit. The Class D stage works with a frequency of switching of 550kHzalmost double the 300 kHz of the most competing endings: This reduces noise in high frequency and broadens the bandwidth, which reaches up to 50 kHz. The circuit low feedback emphasizes the second harmonic (H2), the same responsible for the "coloring" pleasant sound of triodes.

The foodThe connection is entrusted to a transformer high efficiency toroidal, while the Proprietary damping feet absorb vibrations. Connectivity includes an entrance Unbalanced RCA and a input Balanced XLR, selectable via switch (from do not connect at the same time). For who wants to know How to connect a power amplifier to a preamplifier or DAC with balanced output, the XLR input guarantees the maximum rejection of disturbances in installations with long cables.

Specifications

Specifications

Amplification type	ibrido
RMS power per channel	120 W
Reference load	8 ohm
Analog inputs	RCA unbalanced x 1, XLR balanced x 1
Frequency response	10 Hz – 50 kHz
Dimensioni	W 23,5 × H 5,5 × D 28,1 cm
Weight	4 kg
Trim	Nero
Input impedance	47 kOhm
Harmonic Distortion (THD)	0.02%
Rapporto S/N	-95 dB
Alimentazione	115/230 VAC
Electricity consumption	16 W