AudioChainsDB

WiiMAmp Ultra

amplifier

New retail price (MSRP)

$549

Used market: $395*

Check price at ThomannManufacturer datasheet

Specifications

3 of 6 values have a recorded source
Amp type
Integrated Stereo Amp·
Channels
2·
Speaker outputs
·
Power output per channel
100 W into 8 Ω, 20 Hz–20 kHz, 0.08% THD · 200 W into 4 Ω, 20 Hz–20 kHz, 0.08% THD✓
Minimum supported impedance
2✓
Indexable Locales
en·

Expert Audio Engineering Commentary

Headroom notes

This is the rare case in the class where the power figure arrives with its conditions attached: 'Power Output (THD = 0.08%, two channels driven): 100 W per channel @ 8 ohms, 200 W per channel @ 4 ohms'. Distortion limit and channels driven are both named, which makes the number comparable with a conventional integrated amplifier's rating. Two TPA3255 chips with post-filter feedback, and a published damping factor of 94.

Thermal behavior

The published impedance range is 2 - 8 ohms, the lowest of the three WiiM amplifiers and lower than any of the AV receivers in this batch. Note the upper end: 8 ohms, not 16 - WiiM does not claim the unit is specified for higher-impedance vintage speakers.

Setups using this gear

WiiM Amp Ultra with Q Acoustics 3030i: 100 watts into a 75 watt speaker

* Estimated with the depreciation fallback (~72% retained value).