Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
All
Ace Wireless Center
reviews

Manufacturer details
- Sensitivity: 87 db/W/m
- Impedance: 4 ohms
- Frequency Range: 35Hz – 25kHz
- Dimensions: H 5.5" W 13.3" D 6.2" (H 14cm W 33.8cm D 15.7cm)
- Weight: 11 lbs (5 kg)
- Technology: PIEGA AMT Tweeter 2 × 120mm MDS
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Piega speakers are crafted with seamless, extruded aluminum enclosures, designed by Swiss architect Stephan Hürlemann, which minimizes vibrations and resonances.
- They utilize custom-designed Air Motion Transformer (AMT) tweeters, manufactured in-house, known for their clarity, detail, and extended high-frequency response.
- Piega offers a unique Wireless Spatial Sound (WiSa) technology in select models, allowing for cable-free stereo or multi-channel setups without compromising audio quality.
- The brand incorporates Tension Improve Module (TIM) technology, including TIM2 in newer generations, which tensions internal components to further reduce cabinet resonance and improve sonic purity.
Select products
Ace Series
- Positioning: The entry-level lineup in PIEGA's offerings, designed for compact spaces and affordability.
- Description: Features the AMT-1 Air Motion Transformer for detailed sound. Compared to the Premium Series, offers a more compact and budget-friendly option, making it ideal for small rooms or those seeking portability. While it lacks the advanced ribbon technology of the Coax and Master Line Source series, it provides a balanced sound suitable for everyday listening.
Premium Loudspeakers
- Positioning: Sits in the mid-range of PIEGA's lineup, offering a balance of performance and design.
- Description: Known for its elegant design and advanced ribbon tweeter technology, providing clear and precise audio. Features a reinforced aluminum structure that enhances sound clarity, setting it apart from the Ace Series.
Coax Gen2
- Positioning: A high-end offering, positioned just below the flagship Master Line Source series.
- Description: Stands out with its proprietary coaxial ribbon technology, delivering exceptional clarity and balance. Uses advanced TIM2 modules to reduce cabinet vibrations, offering superior sound purity compared to the Premium Series.
Master Line Source Gen2
- Positioning: The flagship series, representing the pinnacle of PIEGA's technological innovation.
- Description: Features innovative Line Source ribbon technology, providing exceptional sound with authentic and coherent sound reproduction. Uses a unique dipole speaker design that fills the space with a coherent cylinder sound wave, surpassing the capabilities of the Coax Gen2.
Our take on the brand
Look inside the brand
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
Our ribbon tweeters, especially the coaxial versions used in our Coax and Master Line models, deliver exceptional resolution and spatial imaging. What’s particularly noteworthy is that we have been developing these tweeters entirely in-house for over 40 years – and we still manufacture them by hand at our facility in Horgen, Switzerland. The quality is, in our view, outstanding – not only acoustically, but also in terms of technical precision and minimal unit-to-unit variance.
Our aluminum enclosures, combined with internal damping and sandwich construction, ensure distortion-free performance – even at high volumes – and are a unique feature both acoustically and visually.
What's your approach to customer support?
We generally recommend that customers first reach out to their dealer or national distributor for any questions or issues. These partners are trained and authorized to assist quickly and effectively. In more complex cases – or when customers contact us directly – we are, of course, committed to providing personal and dedicated support.
Additionally, we regularly invite customers to visit our headquarters in Horgen. During these visits – which include a tour of our production and personal consultation – very close relationships have developed, and in some cases, even real friendships have formed. We take pride in maintaining close and reliable contact, even after the purchase.
What are your favorite tracks for showcasing the strength of your products?
- “Queen Mary” – Francine Thirteen: For dynamics and tight bass, excellent at high volume.
- “Liberty” – Anette Askvik: For atmospheric depth and spaciousness.
- “The Headless Horseman” – Bobby Bass: Great for vocals and evaluating seamless transitions between multi-way drivers.
What other products pair best with yours?
We experience excellent synergy with HiFi Rose electronics – both sonically and aesthetically. Setups with T+A or Cambridge Audio also pair beautifully with our speakers. And of course, there are no limits at the high end: just recently, I heard a large Burmester and McIntosh system driving our Coax 811 at a dealer – the result was absolutely stunning.

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