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All New Features, Same Great Story

Fully redesigned from the original, Sprout100 is shipping within 5 business-days of your order.

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.

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Sprout100 now available

Sprout100 Integrated Amplifier

Product Description

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.

  • 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


Karl Sigman see how the Sprout100 can handle these very serious speakers that cost $15K per pair, with a frequency response down to 29 Hz. We jumped right to it and played Bela Fleck’s classic cut Flight of the Cosmic Hippo. The Sprout100 drove them well, displaying more depth, more bass, more presence and shaking my couch. Of course they did not yield the sound quality that the Celesta shows off with when paired with my 700 W per channel reference mono blocks, and peripheral reference equipment—but confirming that a $599 Sprout100 can drive these speakers was a revelation.

At the mere price of $599, the new and improved Sprout100 Integrated Amplifier excels at all it tries to do; I am hard pressed to find anything wrong with it. A must for those wishing to have a full simple system with fine sound and low cost, it will pair well with just about anything you attach it to, and it only weighs 2.9 pounds. An absolute bargain by any measurement. Very highly recommended.

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Steve Guttenberg

I watched a few episodes of Handmaid's Tale Season 2 on Hulu with the Sprout 100 and the LS50s, and the sound was so good I didn't miss a center channel speaker (in part because I was sitting equidistant from the left and right speakers). Stereo imaging was broad and sharply focused in ways you'll never hear from a sound bar.

So yes, the PS Audio Sprout 100 is an overachiever, just pair it with a good set of speakers and you'll be good to go.

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Audio Bacon

Jay Luong

PS Audio knows the importance of maintaining tonal integrity and placing musicality above all else. No matter how smartly engineered, elegant, or expensive a piece of gear is…it’s fruitless if it ignores these key ingredients. These qualities are what makes something captivating and keeps you in your seat.

It’s obvious a lot of thought, passion, and heart went into the design of the Sprout100. It has been beautifully voiced by some hardcore music lovers. At only $599 (which is cheaper than my USB cable) I consider the Sprout100 to be one of the best-kept secrets in audio. One of those rare times you could steal your cake and eat it too.

The goal of the Sprout100 was to provide quality sound without the hassle. They’ve not only succeeded but also went above and beyond. Instead of being a stepping stone into great sound, I think the PS Audio Sprout100 could be your long-term cornerstone as you scale up. It has the power. It has the flexibility. And it definitely has the sound.

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Unit Weight2.9 lbs [1.3 kg]
Unit DimensionsWidth 6.2", Height 1.9", Depth 8.2" (chassis only, not including knobs) or 9.2” (including connectors and knobs)
Shipping Weight5lbs [2.2 kg]
Shipping DimensionsWidth 10.5", Height 5", Depth 14"

Power requirements

Voltage Options100-240 VAC, 50-60Hz, Auto-Detect
Power Consumption280W Maximum
Mains Power InputIEC C14

Phono Audio Input

Connector 1 Stereo Pair, Phono RCA
Cartridge typeMoving Magnet
Cartridge Output3mV-10mV (5mV recommended)
Cartridge Loading47KΩ (100pF)
S/N ratio>84dB A-weighted (analog output)

Analog Audio Inputs

Connector 1 Stereo Pair, Line Level RCA
Maximum Input level2.1VRMS (+6.44dBV)
Input impedance 10KΩ

Analog Audio Output

Connector 1 Stereo Pair, Line Level RCA
Output level, maximum3.0VRMS (+9.5dBV)
Output Max Gain (using Analog Inputs)8.45dB
S/N ratio>105dB (3VRMS ref)
THD (Analog)<0.01% (1VRMS, 1KHz)

S/PDIF Digital Input

ConnectorOptical (Toslink)
FormatPCM (96KHz max), 24 bits

USB Input

ConnectorUSB “B” Type
FormatPCM (384KHz max), 24 bits, DSD64 (DoP), DSD128 (DoP)
Transfer modeAsynchronous


AntennaBuilt in
DACUses Sprout's built in asynchronous DAC over S/PDIF (ESS Sabre 9016 DAC)

Stereo Power Amplifier Output

8Ω loudspeakers connected50 watts per channel, both channels driven
4Ω loudspeakers connected100 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 connected500mW
300Ω headphones connected125mW
THD<0.01% (1KHz, 50mW into 32 Ω)
Signal to Noise>105dB at max power into 300Ω


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