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Starke Sound Fiera4 - 4 Channel Amplifier
The Starke Sound Fiera4
Our ongoing pursuit of better sound quality led to the 2nd-generation, Class D, Fiera4 with proprietary power and amplifier modules. This unique 4-channel amp can be bridged for 2 or 3-channel operation using simple switches on the rear panel. Upgrade the sound of your audio-video receiver, driving left, center, and right speakers. Add height channels for an immersive rig or power an audiophile 2-channel music system. Welcome to flexibility, substantial power, and great value: Fiera4.
What is New in the Generation 2 Fiera4 Amplifier?
The Fiera4 is the evolution of our successful AD4, now featuring several enhancements for the best sound and performance:
- Newly designed, efficient switching power supply
- Upgraded NS600 Amplification module with redesigned front end
- Improved chassis, internal shielding, and wiring paths
Shielded Switching Power Supply (SAPS)
We developed a new power supply for the Fiera4 to match our design needs, enabling control over size, switching frequency, and power output. This optimization reduces noise and ensures consistent power delivery without brownouts or high idling losses.
NS600 Module
The Fiera4 offers the high efficiency of class D, along with the flexibility of 4-channel or bridged operation. It has been optimized for 21.5 dB of gain for professional audio and home theater applications.
Chassis Mounted XLR and RCA Connections
The Fiera4 supports both balanced and unbalanced sources, ensuring compatibility with any setup.
Multichannel Flexibility
With its unique combination of class D efficiency and warm class AB sound, the Fiera4 is highly versatile, adaptable for 4-channel or bridged 2- or 3-channel setups.
Unique Designs Unique to Starke Sound
Starke Sound’s extensive engineering, led by Dan Wiggins, delivers innovative amplification technology found only in the Fiera4.
Measurements
The Starke Sound Fiera4
Our ongoing pursuit of better sound quality led to the 2nd-generation, Class D, Fiera4 with proprietary power and amplifier modules. This unique 4-channel amp can be bridged for 2 or 3-channel operation using simple switches on the rear panel. Upgrade the sound of your audio-video receiver, driving left, center, and right speakers. Add height channels for an immersive rig or power an audiophile 2-channel music system. Welcome to flexibility, substantial power, and great value: Fiera4.
What is New in the Generation 2 Fiera4 Amplifier?
The Fiera4 is the evolution of our successful AD4, now featuring several enhancements for the best sound and performance:
- Newly designed, efficient switching power supply
- Upgraded NS600 Amplification module with redesigned front end
- Improved chassis, internal shielding, and wiring paths
Shielded Switching Power Supply (SAPS)
We developed a new power supply for the Fiera4 to match our design needs, enabling control over size, switching frequency, and power output. This optimization reduces noise and ensures consistent power delivery without brownouts or high idling losses.
NS600 Module
The Fiera4 offers the high efficiency of class D, along with the flexibility of 4-channel or bridged operation. It has been optimized for 21.5 dB of gain for professional audio and home theater applications.
Chassis Mounted XLR and RCA Connections
The Fiera4 supports both balanced and unbalanced sources, ensuring compatibility with any setup.
Multichannel Flexibility
With its unique combination of class D efficiency and warm class AB sound, the Fiera4 is highly versatile, adaptable for 4-channel or bridged 2- or 3-channel setups.
Unique Designs Unique to Starke Sound
Starke Sound’s extensive engineering, led by Dan Wiggins, delivers innovative amplification technology found only in the Fiera4.
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Starke Sound Fiera4 – 4 Channel Amplifier
The Fiera4 is a compact, high-current Class D four-channel amp that pairs 130 W RMS per channel with bridgeable outputs and balanced XLR inputs. In lab and listening tests Matthew Poes found the Fiera4 delivers authoritative, clean dynamics and reliable multi-channel performance, while John E. Johnson, Jr. praised its smooth, well-controlled sound and suitability for both home theater and two-channel duties. The chassis is lightweight but well made with proprietary binding posts and sensible thermal behavior. Sonically it favors low-noise, muscular bass and a transparent midrange, making it ideal as an external amp to lift an overworked AVR or to drive demanding surround setups. Overall the Fiera4 represents a balanced mix of power, flexibility, and value for multi-channel systems.
Pros
- Clean, dynamic real-world sound with strong transient control and reduced compression when replacing an AVR — effective for LCR or surround channels.
- Flexible bridgeable 4-channel topology and both balanced (XLR) and RCA inputs — useful for home theater bi-amping or bridging into high-power two-channel use.
- Solid build and thermals for a lightweight Class D unit; high-quality beryllium‑copper binding posts and stable operation under sustained load.
- Strong value proposition — measured performance, channel count and features position the Fiera4 competitively for users needing efficient multi-channel power.
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Cons
- Measured rise in high-frequency distortion/peaking (noted above audioband) consistent with the TI-based Class D implementation — a potential concern for ultra-critical reference systems.
- Noise-floor behavior rises at higher output (designer trade‑off that masks distortion), which shows in bench plots and may matter to measurement-oriented buyers.
Sound Quality
88/100
Dynamics
89/100
Class D design delivering 130 Wpc into 8 Ω (bridged 450 W into 2 Ω) and high output current (16.5A / 33A bridged) yields lively, authoritative delivery. Reviewers reported the amp as 'very efficient' and that it reduced compression versus an overworked receiver, handling full-bodied, intense material with apparent ease, though HomeTheaterHifi cautions the raw wattage is modest so users shouldn't 'press the pedal to the metal.' Overall excellent transient control and headroom for its power band, with bridging capability adding extra dynamics when used in 2-channel mode.
Soundstage Imaging
87/100
Reviewers heard clear, coherent imaging and good clarity (piano complexity handled well, Audioholics noted a clear step up from a receiver), and no audible spatial smear even when bench tests showed minor peaking with an 8 Ω load. The amp maintains stable channel separation and scale for typical home-theater and two-channel rigs, though reviewers stopped short of calling it a reference-level spatial performer.
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Build Quality
89/100
Well-built lightweight chassis (19 lbs) with aluminum faceplate/backplate and steel chassis, exemplary beryllium-copper binding posts praised by reviewers, and solid thermal management with no heat concerns reported. Four-channel topology that can be bridged into two channels (noted by reviewers) adds flexibility; overall construction and component choices punch above the weight class.
Value for Money
90/100
Price publicly listed around $1,199 (Audioholics referenced a sale at $1,299) and reviewers describe it as a 'modest price' and 'worth a hard look' for an efficient, good-sounding four-channel amplifier. Given measured performance, feature set (balanced/XLR and RCA inputs, bridgeable channels), and comparisons to higher-priced two-channel Purifi-based products, reviewers consider the Fiera4 competitive and well-placed for its segment.
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