PS Audio Sprout100 (Sprout II)


In stock!


Sprout represents our vision of a simple, elegant means of playing music at home. We created it for those of us who want quality sound without the hassles that sometimes come with it. Sprout offers sonic ideals and design principles enjoyed by many thousands of users daily. Its ease of use should make it appealing and accessible to those who would find most audio gear intimidating; it should also appeal to those who have “been there, done that” and seek a better, simpler way to play music in their home.


Sprout100 is the all-new, heavily-updated replacement for the original PS Audio Sprout. Many improvements have been made: we doubled the output power, we fully redesigned the headphone amplifier, and we included Stereo-RCA analog in/outputs, a DAC that decodes full resolution PCM & DSD, a subwoofer output, and a sleek, brushed aluminum remote control. Sprout100 is identical to the original PS Audio Sprout in many ways as well: size, shape, look and feel. Materials of machined and bead-blasted aluminum. Real walnut. And all the sound quality you have come to expect from PS Audio.


How is Sprout100 different from the original?

To start, Sprout100 offers double the output power, which—apart from providing renewed efficiency, lowered distortion, and greater separation and detail—also serves to galvanize the sonic benefits of extended headroom.

Sprout100 offers a DAC with maximum resolution—one that decodes even 128DSD and 384/24PCM. We hear you want a remote control, an indicator light, a defeatable bass-boost, and an optical input? It’s all there. Sprout100 also differs from the original by offering a variable subwoofer mono output, full RCA analog in/out connectors, a redesigned world-class RIAA phono-stage, and a newly designed z-feedback low-impedance headphone amplifier. And with Sprout100’s universal internal power supply (100 – 240VAC @ 50/60Hz with auto-detect) you can take your new integrated amplifier abroad for maximum flexibility. By adapting new high-resolution/low-distortion topologies, a beefy 240-watt power supply, and bleeding-edge ICEpower amplifier technology, Sprout100 offers increased headroom, lower noise floor, and extended and nuanced frequency response. Z-feedback innovations reveal temporal accuracy and increased transient impulse response. Sonically notable for its lucid spatial detail, acute tonal retrieval, and commanding noise immunity, Sprout100 is even more equipped to drive your loudspeakers and headphones than before.

But many things didn’t change. For example, the size, feel, shape and style are the same. Like its predecessor, Sprout100 is adorned with real walnut and machined aluminum knobs—making each and every Sprout100 unique. Our attention to detail is the same. Our passion remains true. Our philosophy will never change.

Rather than a display screen and endless menus, Sprout’s user interface is a direct hand-to-Sprout connection through two precision rotary switches as well as a handheld remote control. The front panel controls allow intuitive, direct control of the device, and provide feedback to the user through a positive click, while the new remote control offers the convenience you’d expect.

Sprout’s ease of use makes it appealing and accessible to those who would find most audio gear intimidating. It’s also appealing to those who have “been there, done that”, and seek a better, simpler way to play music in their home. Sprout simultaneously appeals to those making their first purchase of an audio component–and those making their last purchase, seeking quality without complication.


  • Full featured integrated amplifier
  • 100 watts per channel power amplifier
  • Drives any size loudspeaker
  • Remote Control, brushed aluminum: Volume up/down, Mute on/off, Power on/off
  • Preamplifier, RCA analog inputs, precision stepped volume control
  • Fully asynchronous DAC supports up to 384/24 PCM or double rate DSD
  • Passive EQ moving magnet phono preamplifier
  • Low output impedance headphone amplifier
  • TOSLINK optical digital input
  • USB input
  • RCA analog input
  • Built-in Bluetooth receiver uses Sprout’s internal asynchronous DAC
  • Manual input selector for all inputs
  • Headphone output 32Ω: 500mW, 300Ω: 125mW (drives all headphones)
  • RCA analog output
  • Optional bass boost
  • Dedicated subwoofer output, automated internal bass-boost switch
  • Signal-to-Noise Ratio 100 dB at max power into 4Ω
  • THD <0.01% (1 W, 1 kHz into 4 ohms)
  • Indicator light
  • Accessories Include: 6ft regional power cord, remote control, 4x banana adaptors, 2x Sprout Decal, Owner’s Manual
  • Dimensions: 6.2″W x 8.2″L x 1.9″H



  • Unit weight: 1.3 kg (2.9 lbs)
  • Unit Dimensions: 157 x 48 x 208 mm (WxHxD) [Chassis only]. 157 x 48 x 234 mm (WxHxD) [with knobs & connectors]
  • Shipping Weight: 2.2 kg (5lbs)
  • Shipping Dimensions: 268 x 127 x 356 mm (WxHxD)

Power Requirements

  • Voltage Options: 100-240 V AC, 50-60Hz, Auto-Detect
  • Power Consumption: 280W Maximum
  • Mains Power Input: IEC C14

Phono Audio Input

  • Connector: 1 Stereo Pair, Phono RCA
  • Cartridge Type: Moving Magnet
  • Cartridge Output: 3mV-10mV (5mV recommended)
  • Cartridge Loading: 47kOhms (100pF)
  • EQ Type: RIAA
  • S/N ratio: >84dB A-weighted (analog input)

Analog Audio Inputs

  • Connector: 1 Stereo Pair, Line Level RCA
  • Maximum Input Level: 2.1 VRMS (+6.44 dBV)
  • Input Impedance: 10 kOhms

Analog Audio Output

  • Connector: 1 Stereo Pair, Line Level RCA
  • Output Level, Maximum: 3.0 VRMS (+9.5dBV)
  • Output Max Gain (using analog Inputs): 8.45 dB
  • S/N ratio: > 105 dB (3 VRMS ref)
  • THD (Analog): <0.01% (1 VRMS, 1kHz)


  • Connector: Optical (TOSLink)
  • Format: PCM (96kHz max), 24 bits

USB Input

  • Connector: USB Type B
  • Format: PCM (384kHz max), 24 bits, DSD64 (DoP), DSD128 (DoP)
  • Transfer Mode: Asynchronous


  • Antenna: Built in
  • DAC: Uses Sprout’s built in asynchronous DAC over S/PDIF (RSS Sabre 9016 DAC)

Stereo Power Amplifier

  • 8 Ohm Loudspeakers connected: 50 watts per channel, both channels driven
  • 4 Ohm Loudspeakers connected: 100 watts per channel, both channels driven
  • THD (Speaker Output): <0.01% (1W, 1kHz into 4 Ohms)
  • Frequency Response: +/- 1 dB (1 VRMS out, 20 Hz – 20 kHz into 4-8 Ohms)
  • Signal to Noise: >100 dB at max power into 4 Ohms

Headphone Output

  • 32 Ohm headphones connected: 500 mW
  • 300 Ohm headphones connected: 125 mW
  • THD: <0.01% (1kHz, 50mW into 32 Ohms)
  • Signal to Noise: >105 dB at max power into 300 Ohms