Sprout Integrated Amp
Sprout Integrated Amp
Sprout Integrated Amp
Sprout Integrated Amp
Sprout Integrated Amp
PS Audio

Sprout Integrated Amp

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Why We Like It

Originally launched last year on Kickstarter, PS Audio's Sprout is truly one of the most exciting audio products available today. It's a simple, super compact solution of respected audiophile lineage with specialized connectivity for today's most popular sources, specifically smartphones, turntables and computers.


Sprout is the culmination of PS Audio’s 42 years’ experience building concert quality audio products. They hand selected the best parts of that rich history and put it into a single, simple, easy-to-use personal music system. It’s everything you need. Nothing you don’t. Just add speakers or headphones, and music—so close to live—will fill your whole home. It’s nothing short of magical. Sprout is the link between your music and your speakers. Sprout is the size of a big novel, yet it will fill your living room, bedroom or any room with enormous, live sound. Designed down to the very atom and constructed of stainless steel, extruded aluminum, and walnut - this is not audio equipment. It’s audio furniture.

Sprout’s ease of use makes it appealing and accessible to music lovers around the world. It features a phono preamplifier for vinyl, a Bluetooth receiver for music streamed from smartphones, a high-quality hi-res DAC to handle anything stored on a laptop, enough power for any speaker, and a headphone amp that drives even the toughest loads.


Passive EQ moving magnet phono preamplifier

Vinyl is an important part of a growing number of people’s lives today and Sprout brings LPs to life as you have rarely experienced. The engineering team at PS Audio has been designing and building vinyl amplification for 40 years and we know a thing or two about making records sound their best. Sprout features a precision passive RIAA curve nestled between two high speed gain stages that perfectly amplify any moving magnet phono cartridge.

Built in Bluetooth receiver

Streaming music from a mobile device is common and expected amongst Sprout owners. That the sound quality of that streaming service is exceptionally good in Sprout is a testament to PS Audio’s engineering team’s decision to pass streaming services through Sprout’s internal upsampling DAC.

High resolution digital audio

Built inside Sprout is a highly sophisticated Digital To Analog Converter (DAC) that accepts digital audio from just about any source including USB, coaxial and Bluetooth. Sample rates up to 192kHz and bit depth up to 24 bits are supported by a Wolfson asynchronous precision sigma delta modulator.

Power amplifier

Sprout features an exceptional sounding 50 watt per channel power amplifier capable of driving just about any loudspeaker you connect to it. Selected for its musical virtues, Scott McGowan personally curated this Scandinavian designed amplifier from amongst a dozen fine candidates before selecting it for Sprout. Musical, powerful, never aggressive sounding, the amplifier within Sprout honors the music.

Line level output

Sprout’s analog output can feed a separate subwoofer, tape deck or second set of amplified loudspeakers with ease. Separated and buffered from the main signal path, Sprout’s analog outputs are available through its rear 3.5mm connector.

Discrete zero impedance headphone amp

Listening to music through a fine set of headphones is an experience many of us cannot be without and Sprout honors the music with one of the finest headphone amplifiers made. Driven by a discrete, fully complementary discrete output stage, Sprout’s headphone amplifier has near zero output impedance to power even the most demanding devices available.



Unit Weight 2.9 lbs
Unit Dimensions 6” x 8” x 1.75”
Shipping Weight 5 lbs
Shipping Dimensions 22.5”x 13” x 6” [57cm x 33cm x 15cm]

Power requirements

Input Power Model specific 120VAC, or 230VAC 50 or 60Hz
Power Consumption <10w idle="" 125w="" maximum="" td="">

Phono Audio Input

Connector RCA (X2)
Cartridge type Moving Magnet
Cartridge Output (5cm/s) 2mV to 50mV
Cartridge load impedance 47KΩ(100pF)
Equivalent Input Noise <1.6uV
S/N ratio >80dB (@analog output, ref 4VRMS maximum output)

Analog Audio Inputs

Connector 3.5mm stereo input
Input level 2.0VRMS (+6dBV)
Input impedance 10KΩ

Analog Audio Output

Connector 3.5mm stereo connector can be used for subwoofer or amplifier feeds
Output level, nominal
(@ rated cartridge input)
1.0V (0dBV) with 5mV cartridge at reference level (volume at 100%)
Output level, maximum 4.0VRMS (+12dBV) maximum, Full scale digital or vinyl at +12dB over reference (volume at 100%)
Output Impedance 220Ω
S/N ratio >94dB (@analog output, ref 4VRMS maximum output)
THD (power amp) <0.03% (1W 50Hz-10KHz)
<0.1% at rated power, 1KHz, 120VAC mains

S/PDIF Digital Input

Connector RCA (Coax)
Impedance 75Ω
Format PCM

USB Input

Connector USB “B” Type
Format PCM
Transfer mode Asynchronous
S/N ratio digital >102dB (@analog output, ref 4VRMS maximum output)


Antenna Built in
DAC Uses Sprout's built in asynchronous DAC over S/PDIF

Stereo Power Amplifier Output

8Ω loudspeakers connected 32 watts per channel, both channels driven
4Ω loudspeakers connected 50 watts per channel, both channels driven

Headphone Output Power

16Ω headphones 1W (1KHz, 1% THD)
300Ω headphones connected 200mW (1KHz, <0.03% THD)

Headphone Output Impedance

From 10Hz to 10kHz <0.3 ohm="" td="">