Description
Included in this kit
This bundle includes a WiiM Amp Ultra Space Gray Streaming Amplifier | 100W/Ch at 8Ω | 3.5" Touchscreen | HDMI ARC | RoomFit, and a Polk Signature Elite ES15 Bookshelf Speaker Pair - Brown.
1x WiiM Amp Ultra Space Gray Streaming Amplifier | 100W/Ch at 8Ω | 3.5" Touchscreen | HDMI ARC | RoomFit (WiiM-Amp-ULTRA-Space-Gray)
WiiM Amp Ultra Space Gray Streaming Amplifier | 100W/Ch at 8Ω | 3.5" Touchscreen | HDMI ARC | RoomFit
A high-output streaming amplifier with dual Class-D power stages, a flagship ESS DAC, RoomFit correction, and a glass-covered touchscreen.
Overview
Built for the system
WiiM Amp Ultra produces 100 watts per channel into 8 ohms or 200 watts per channel into 4 ohms with both channels driven at the stated 0.08% THD condition.
A 3.5-inch touchscreen, HDMI ARC, optical and RCA inputs, Wi-Fi 6, Bluetooth 5.3, Ethernet, and the WiiM Home app bring music, TV audio, and system control together.
At a glance
Key product features
- Delivers 100W per channel at 8 ohms or 200W per channel at 4 ohms
- ESS ES9039Q2M DAC, dual TI TPA3255 amps, and PFFB architecture
- 3.5-inch touchscreen handles playback, source selection, and system status
- Wi-Fi 6, Bluetooth 5.3, Ethernet, HDMI ARC, optical, and RCA connectivity
- RoomFit correction and input-specific EQ tailor performance to the system
Design and integration
Flagship components with silent thermal control
The ESS ES9039Q2M DAC, dual TI TPA3255 amplifiers, six TI OPA1612 op-amps, and PFFB topology are housed in an anodized unibody aluminum chassis. A copper heat pipe, large heatsink, and precision thermal control cool the amplifier without a fan.
See and control playback
The 3.5-inch capacitive touchscreen shows album art and system information while supporting direct playback and source control.
High-output stereo
Gold-plated binding posts accept banana plugs or bare wire for bookshelf, floor-standing, in-wall, or other passive speakers.
Connected listening
Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, Alexa Cast, DLNA, and Roon Ready are supported.
| SKU | WiiM-Amp-ULTRA-Space-Gray |
| Model Number | AMP003-Space Gray |
| Finish | Space Gray |
| Power Output | 100W/ch at 8Ω; 200W/ch at 4Ω (THD 0.08%, two channels driven) |
| DAC | ESS ES9039Q2M SABRE |
| Amplifier | Dual TI TPA3255 Class-D stages with PFFB |
| Op-Amps | Six TI OPA1612 |
| Audio Quality | 121 dB SNR; 0.0005% THD+N (-106 dB) |
| Display | 3.5-inch glass-covered capacitive touchscreen |
| Analog Input | Stereo RCA |
| Digital Inputs | Optical up to 24-bit/192kHz; HDMI ARC up to 24-bit/192kHz PCM and Dolby Digital 5.1 |
| Speaker Outputs | Gold-plated binding posts for banana plugs or bare wire |
| Network | Wi-Fi 6; 100 Mbps Ethernet |
| Bluetooth | Bluetooth 5.3 with LE Audio, receiver and transmitter support |
| Room / EQ | RoomFit correction and independent settings by input |
| Supplied Dimensions | 15.38 x 10.38 x 3.75 in (L x W x H) |
| Supplied Weight | 9 lb |
WiiM Amp Ultra is not compatible with AirPlay and cannot function as an AirPlay receiver.
1x Polk Signature Elite ES15 Bookshelf Speaker Pair - Brown (ES15-Brown)
Signature Elite ES15 Compact Bookshelf Loudspeaker Pair
The Polk Signature Elite ES15 is a compact, full-range bookshelf loudspeaker designed for movies, music, and gaming. Hi-Res Audio Certified and compatible with Dolby Atmos and DTS:X, the ES15 combines a 1" Terylene dome tweeter, a 5.25" Dynamic Balance mica-reinforced polypropylene driver, phase-optimized precision crossover, and Power Port® bass-enhancing technology.
Overview
Compact High-Resolution Sound
The Signature Elite ES15 delivers high-resolution cinematic sound from a compact bookshelf enclosure. Its Dynamic Balance acoustic array combines a 1" Hi-Res Audio Certified Terylene dome tweeter with a 5.25" mica-reinforced polypropylene driver for full-range playback.
Phase-optimized precision crossovers help create a seamless, lifelike soundstage throughout the listening room, while Polk's Power Port® design supports greater low-frequency output with smoother airflow and reduced distortion compared with conventional ported designs.
Core Specifications
Two-Driver Dynamic Balance Array
- One 1" (2.54 cm) Terylene Hi-Res dome tweeter.
- One 5.25" (13.34 cm) Dynamic Balance mica-reinforced polypropylene driver.
- Total frequency response of 44 Hz–40 kHz.
- 85 dB sensitivity measured at 2.83V / 1 meter.
- Recommended amplifier power of 20–100 watts per channel.
- Compatible with 8-ohm amplifier outputs.
Feature Highlights
Designed for Detail, Bass & Flexible Placement
High-Frequency Performance
Extended Detail to 40 kHz
The ES15's 1" Terylene dome tweeter is Hi-Res Audio Certified and provides high-frequency extension beyond 40 kHz. This capability is designed for detailed playback of high-resolution music and ultra-HD movie soundtracks.
Bass Performance
5.25" Driver with Power Port®
The 5.25" Dynamic Balance mica-reinforced polypropylene driver works with Polk's Power Port® system to improve airflow from the cabinet. The design provides greater port surface area and smoother airflow for more output and less distortion.
System Integration
20–100 Watts Recommended Power
The ES15 is compatible with 8-ohm amplifier outputs and carries a recommended amplifier power range of 20 to 100 watts per channel. A single pair of gold-plated 5-way binding posts provides the speaker connection.
Placement & Installation
Stand, Shelf or Wall Mount
With a compact cabinet measuring 12" high, 7.5" wide, and 10.2" deep, the ES15 can be positioned on a stand or shelf. A keyhole mounting slot also allows wall installation where appropriate.
| Model | Signature Elite ES15 |
| Product Type | Compact bookshelf speaker |
| Quantity Included | Pair |
| Orientation | Horizontal |
| Total Frequency Response | 44 Hz–40 kHz |
| Sensitivity | 85 dB (2.83V @ 1m) |
| Tweeter | (1) 1" (2.54 cm) round Terylene Hi-Res dome tweeter |
| Mid/Bass Driver | (1) 5.25" (13.34 cm) round Dynamic Balance mica-reinforced polypropylene driver |
| Crossover Frequency | 2.3 kHz |
| Recommended Amplifier Power | 20–100 watts per channel |
| Impedance | Compatible with 8-ohm outputs |
| Inputs | Single gold-plated 5-way binding posts |
| Bass Enhancement | Power Port® |
| Mounting Type | Keyhole slot |
| Height | 12" (30.48 cm) |
| Width | 7.5" (19.1 cm) |
| Depth | 10.2" (25.9 cm) |
| Weight | 13 lbs (5.9 kg) |
| Carton Weight | 28.6 lbs (12.97 kg) |
Design
Engineered & Designed in the USA
The Signature Elite ES15 is engineered and designed in the USA and is intended to deliver full-range performance in compact listening spaces and home theater systems.
The provided product information specifies a 5-year limited warranty.