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PS Audio Sprout 100 Integrated Amplifier

PS Audio Sprout 100 Integrated Amplifier
PS Audio Sprout 100 Integrated AmplifierPS Audio Sprout 100 Integrated AmplifierPS Audio Sprout 100 Integrated AmplifierPS Audio Sprout 100 Integrated Amplifier
(£745.83 Exc. VAT)

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Free U.K. Delivery


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PS Audio Sprout 100 Integrated Amplifier

All new features, great same story

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.

It is in this spirit of passion and technological advancement that PS Audio proudly announces our newest, first-tier integrated amplifier: Sprout100 Sprout’s design principles will never change: compact, elegant versatility that brings the content of yesterday to the technology of today. Sprout’s performance and features have been overhauled: more power, more resolution, more romance. We hope you enjoy.

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.

Shipping typically 1-3 days
  • 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: 2.9 lbs [1.3 kg]
  • Unit Dimensions: Width 6.2", Height 1.9", Depth 8.2" (chassis only, not including knobs) or 9.2” (including connectors and knobs)
  • Shipping Weight: 5lbs [2.2 kg]
  • Shipping Dimensions: Width 10.5", Height 5", Depth 14"

Power requirements

  • Voltage Options: 100-240 VAC, 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: 47KΩ (100pF)
  • EQ Type: RIAA
  • Gain: +40dB
  • S/N ratio: >84dB A-weighted (analogue output)

Analog Audio Inputs

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

Analog Audio Output

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

Analog Audio Output

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

S/PDIF Digital Input

  • Connector: Optical (Toslink)
  • Format: PCM (96KHz max), 24 bits

USB Input

  • Connector: USB “B” Type
  • 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 (ESS Sabre 9016 DAC)

Stereo Power Amplifier Output

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

Headphone Output 

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




UK Delivery

  • FREE delivery via DPD Local By 12pm on orders to value over £300, including one hour delivery window service 'Predict & Follow My Parcel'.
  • Royal Mail Special Delivery By 1pm costs between £5.00 - £10.00 on orders to value under £300, dependent on weight.
  • Saturday or Sunday delivery available upon request for supplemental charge.

EU Delivery

  • £25 delivery charge 'Flat Fee' via DHL Europe by Road service (5-7 days) which provides comprehensive tracking of shipments online.
  • £50 delivery charge 'Flat Fee' via DHL Europe by Air service  (2-3 days) which provides comprehensive tracking of shipments online.
    Receiver is responsible for the payment of local Duties and Taxes.

USA & Canada Delivery

  • Services based on your order being shipped to the U.S. and Canada are calculated as follows:
    £100 delivery charge 'Flat Fee' via DHL international 'Day Definite' service per parcel.
    Receiver is responsible for the payment of local Duties and Taxes.


  • Not all products are available for order into Europe, USA & Canada


  • Full manufacturer's warranty on all new purchases. Standard warranty is typically 12 months to 2 years with some goods coming with 6 years manufacturer's warranty.
  • Goods purchased in UK and EU are covered by the Consumer Contracts Regulations.
Average Rating (1 Review):  
Write a Review and share your opinions!

Small But Powerful
01 October 2020  | 

I currently own a Linn Sondek turntable with an Akito arm and AT440MLb cartridge, with a pair of Epos K3 loudspeakers.
These were originally being used with a Roksan Blak amplifier with my HP laptop connected via an Audio Quest Cinnamon USB lead for streaming music.

On connecting the Sprout, the difference was immediate, with a superb soundstage, deep and defined bass extension with the higher frequencies showing extreme clarity without any fatigue.
I find myself constantly playing my vinyl, exploring the nuances and details on each record I had not yet heard. The phono stage is MM and needs no phono amp [I tested it with my Simaudio Moon 110lp phono amp to no benefit] while the DAC is fantastic at extracting every bit of information.
By comparison, I found the Blak a little harsh on the higher frequencies and the bass a little confused making it difficult to identify the bass guitar apart from the bass drum. Not so with the Sprout.
The delivery and timing have great weight and a real punch. This may be a diminutive piece of kit but it punches way beyond its appearance and accommodates all the inputs I need at a price which shames comparable amplifiers at three or four times its price.

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