Sprout 100 an amplifier for the modern home.  Redisigned from the ground up, Sprout100 features several notable improvements over the original Sprout, including double the output power, an upgraded DAC, phono stage, and headphone amp, a remote control, an optional bass boost, and a dedicated subwoofer output.  


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.

PS Audio Sprout100 Integrated Amplifier

  • 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 (analog 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 Analog 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


    Width: 6.2" 
    Depth: 8.2" (chassis only, not including knobs)

    Depth with connectors and knobs: 9.2" 

    Height: 1.9"

    Shipping Weight: 5 Lbs


    Specifications are subject to change without notice