PS Audio Stellar S300 & WiiM ULTRA Streaming Stereo Power Amplifier Bundle SPACE GRAY / BLACK

Combine modern high-resolution streaming and source control with powerful stereo amplification using the WiiM ULTRA Digital Hub Streamer and PS Audio Stellar S300 Stereo Power Amplifier. The WiiM ULTRA provides extensive digital and analog connectivity, wireless streaming, touchscreen control and RCA line output, while the Stellar S300 supplies 140 watts per channel into 8 ohms and 300 watts per channel into 4 ohms for demanding passive loudspeakers.

Bundle Includes

• 1 x WiiM ULTRA Digital Hub Streamer SPACE GRAY — NEW — Model WIIMULTRA
• 1 x PS Audio Stellar S300 Stereo Power Amplifier BLACK — NEW — Model Stellar S300

The WiiM ULTRA acts as the system's digital hub, supporting HDMI ARC, optical, line and phono inputs along with Wi-Fi 6E, Bluetooth 5.3 and popular streaming protocols. Its RCA output can feed the Stellar S300's RCA input, creating a flexible two-component system for streaming, connected sources and passive loudspeakers.

The Stellar S300 combines a discrete Class A MOSFET Analog Cell input stage with a high-current Class D output stage in a dual-mono design. Together with the WiiM ULTRA's high-resolution source capabilities and comprehensive control features, the bundle provides a compact front end paired with substantial stereo power.

Features

• WiiM ULTRA digital hub streamer with 3.5-inch glass-covered touchscreen
• HDMI ARC, optical, line and phono inputs on the WiiM ULTRA
• RCA, headphone, coaxial, optical and USB audio outputs
• High-resolution audio support up to 24-bit/192 kHz
• Wi-Fi 6E and Bluetooth 5.3 wireless connectivity
• Spotify Connect, TIDAL Connect, Google Chromecast Audio, Alexa built-in, DLNA and Squeezelite support
• 24 preset EQ settings, 10-band Graphic EQ and 10-band Parametric EQ
• Subwoofer output with adjustable crossover frequency, level, phase and latency
• PS Audio Stellar S300 stereo power amplifier with dual-mono architecture
• Discrete Class A MOSFET Analog Cell input stage
• High-current Class D output stage
• 140 watts per channel into 8 ohms
• 300 watts per channel into 4 ohms
• RCA single-ended and XLR balanced inputs
• 2-ohm stable for musical transients
• Front-panel standby control and 12-volt trigger input

Specifications

WiiM ULTRA Digital Hub Streamer — WIIMULTRA

• Display: 3.5-inch glass-covered touchscreen
• Audio Input: HDMI ARC, Optical, Line, Phono (MM, MC), up to 24-bit/192 kHz
• Audio Output: RCA, Headphone, Coax, Optical, USB, up to 192 kHz/24-bit
• Line Out Maximum Output: 2.1 V RMS
• Line Out SNR: 121 dB (A-weighted)
• Line Out THD+N: 0.00018% (-115 dB) at 1 kHz
• EQ: 24 preset EQ settings, 10-band Graphic EQ, 10-band Parametric EQ
• Subwoofer Output: Adjustable crossover frequency, level, phase and latency
• Network: Wi-Fi 6E, 802.11 b/g/n/ax on 2.4 GHz, 5 GHz and 6 GHz bands; 10M/100 Mbps LAN
• Bluetooth: Bluetooth 5.3, BLE, A2DP receiver/transmitter, AVRCP, HID
• Streaming Protocols: Spotify Connect, TIDAL Connect, Google Chromecast Audio, Alexa built-in, DLNA, Squeezelite
• Power Supply: 100-240 V AC, 50/60 Hz, 0.5 A Max
• Dimensions (W x D x H): 8.3 x 7.87 x 2.83 in (211 x 200 x 72 mm)
• Weight: 3.13 lb (1.42 kg)
• Model: WIIMULTRA
• Colour: Space Gray

PS Audio Stellar S300 Stereo Power Amplifier — Stellar S300

• Amplifier Type: Stereo Power Amplifier
• Design: Dual Mono with Separate Power Supplies
• Input Stage: Discrete Class A MOSFET Analog Cell
• Output Stage: High-Current Class D
• Audio Inputs: RCA Unbalanced and XLR Balanced
• Output Power Into 8 Ohms: 140 W minimum per channel
• Output Power Into 4 Ohms: 300 W minimum per channel
• 2-Ohm Operation: Stable for musical transients
• Gain: 30.5 dB ±0.5 dB
• Sensitivity for Rated Output: 1.01 V
• Input Impedance: 50 kOhms unbalanced / 100 kOhms balanced
• Output Impedance: Less than 0.007 ohms at 50 Hz, 2.8 V RMS
• Damping Factor: Greater than 1100 into 8 ohms; greater than 550 into 4 ohms
• Frequency Response: 10 Hz - 20 kHz ±0.5 dB; 10 Hz - 50 kHz +0.1/-3.0 dB
• Idle Power Consumption: 13 W
• DC Trigger Input: 3.5 mm, 5-15 VDC
• Speaker Outputs: Copper-base nickel-plated binding posts, 2 pair per channel
• North American Voltage: 120 V
• Mains Power Input: IEC C14
• Dimensions (W x H x D): 17 x 3 x 12 in (43.2 x 7.6 x 30.5 cm); 13 in (33.0 cm) deep with connectors
• Weight: 13 lb (5.9 kg)
• Model: Stellar S300
• Colour: Black

What's in the Box

• 1 x WiiM ULTRA Digital Hub Streamer
• 1 x PS Audio Stellar S300 Stereo Power Amplifier