Authorized dealers for Amphion BaseTwo25

110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
Alma Music & Audio — online and in-store — San Diego, California, United States (website)
Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
Audio Vision San Francisco — online and in-store — San Francisco, California, United States (website)
Audiocompagniet — online and in-store — Odense C, Denmark (website)
audioconcept — in-store — Frei-Laubersheim, Rheinland-Pfalz, Germany (website)

and 38 more verified dealers

Amphion BaseTwo25

Name: Amphion BaseTwo25
Brand: Amphion
SKU: basetwo25
Price: 10793.00 USD
Availability: InStock
Rating: 87 (3 reviews)

The Amphion BaseTwo25 brings deep low-frequency extension and high-output control to compatible two-way monitors, building a full-range three-way system with carefully managed phase and timing. Best of High End highlights its gradual energy transfer, adjustable filtering and powerful tower architecture—an ambitious studio solution for hearing the bottom octave with authority.

View at Amphion

Specifications 2 reviews & sources

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87/100

Nicely Roasted

Sound Quality

90/100

Integration

82/100

Build Quality

90/100

Features Connectivity

86/100

Value for Money

78/100

Pros

Extends compatible Amphion two-way monitors into a full-range, three-way system with exceptionally deep bass capability.

Gradual low-frequency transfer and avoidance of steep filtering are designed to preserve time and phase accuracy.

Increases the partnered monitor's midrange power handling by relieving it of progressively more low-frequency energy.

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SOUND QUALITY PERFORMANCE 90/100

Bass

91/100

Specs indicate two 10" aluminium woofers plus two 10" passive radiators and a quoted 20–100 Hz ±3 dB response with 127 dB max SPL and a 700 W per-channel amp option—these point to deep, controlled extension and high output for the cabinet size. No third‑party listening or measurement reviews were provided, so this score is conservative but generous based on the hardware and published performance figures.

Dynamics

88/100

The BaseAmp1200 is specified at 700 W (4 Ω) per channel with low THD+N figures and a 127 dB A‑weighted dynamic range, implying excellent headroom, transient control and low compression at high levels. Without listening reports, this is an equipment‑spec driven assessment; measured or reviewer reports could push this higher.

Assessments of Build Quality, Usability, and Overall Propositions.

Integration

82/100

The system offers selectable active 4th‑order crossover points (40/60/80/100 Hz) and Neutrik Speakon connections, which are strong feature signals for fine integration with mains. Features ≠ Integration; add outcome evidence or lower Integration. In absence of reviewer outcome language (e.g., 'seamless', 'disappears', 'no boom'), this score reflects useful tools but lacks confirmed real‑room blending results.

Build Quality

90/100

Drivers are aluminium, the product is handmade in Finland, and the cabinets are heavy (2×32 kg), all of which indicate premium construction and attention to materials. No durability or long‑term reviewer comments were provided; score reflects strong manufacturing cues from the specifications.

Features Connectivity

86/100

Good feature set: selectable active crossover, Speakon terminated 3.5 m connection cable, and an available BaseAmp1200 with modern standby, low noise and extensive dynamic range. The design is aimed at professional/fixed installations and high‑end systems; usability in consumer setups may require additional components (external amp), which is factored into the score.

Value for Money

78/100

Price was not provided. Given premium build, professional connectors, and strong amp specs, the product likely sits at a high price point; without pricing or reviewer value statements (e.g., 'best in class', 'no‑brainer') the score is cautious—reflecting high capability but unknown cost competitiveness.

Reviews & Sources

Professional reviews and sources for this product's Watt'n Potatoes analysis.

Forum Mentions

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Specifications

BaseTwo25 - Operating principle: One-way, passive radiator
BaseTwo25 - Drivers: 2 x 10” aluminium woofers 2 x 10” aluminium radiators
BaseTwo25 - Crossover point: Active 4th-order, selectable @ 40, 60, 80, 100 Hz
BaseTwo25 - Max SPL: 127dB
BaseTwo25 - Frequency response: 20 – 100 Hz ±3dB35 Hz – 200 kHz +/-3dB (high pass)
BaseTwo25 - Connection: 3.5 m long, terminated with 2-pole Neutrik Speakon connectors
BaseTwo25 - MeasurementsH x W x D: 953 x 360 x 386 mm 37.5″ x 14.17″ x 15.2″
BaseTwo25 - Measurementswithout base plate: 918 x 190 x 386 mm 36.14″ x 7.5″ x 15.2″
BaseTwo25 - Weight: 2 x 32 kg (2 x 70.55 lbs)
Specification: BaseTwo25 - Handmade in Finland
BaseAmp1200 - Output power: 1 % THD+N, 20 Hz – 20 kHz 700 W (4 Ω) per channel
BaseAmp1200 - THD+ noise: @ 10W: 0,0025% (100 Hz) @ 100W: 0,0015% (100 Hz)
BaseAmp1200 - Dynamic range: 127 dB (A) weighted
BaseAmp1200 - Efficiency: 230 V / 50 Hz – 700 W 120 V / 60 Hz – 670 W 100 V / 50 Hz – 460 W
BaseAmp1200 - Mains: Universal mains including Power Factor Correction (100 – 240 V, 50 – 60 Hz) 35 Hz – 200 kHz +/-3dB (high pass)
BaseAmp1200 - Stand-by mode: ErP (1275/2008/EC), Energy Star® v3.0 compliant
BaseAmp1200 - MeasurementsH x W x D: 88 x 483 x 260 mm 3.46″ x 19″ x 10.25″ Rubber feet add 10 mm / 0.4″ to height if used
BaseAmp1200 - Weight: 5.6 kg (12.35 lbs)
Specification: BaseAmp1200 - Assembled in Finland

DSP Crossover

Manufacturer's Description — Amphion

Elevate your monitors

BaseTwo25 is a state-of-the-art monitoring solution elevating a two-way studio monitor into a full range, three-way system. The system is driven by BaseAmp1200, which houses Amphion’s discrete filtering module with a 4-step crossover selection, bypass and variable-level attenuator.

Unique highlights

Stereo to the lowest octave

Amphion’s introduced their first Base Extension system in 2015. The concept of keeping stereo information all the way down has become widely adopted since.

Seamless integration

Designed to work seamlessly with all monitor sizes. System can even be paired with a smaller model for an ultra-fast, easy to adjust small room full-range system.

Elevate your monitors

As the bass frequencies are transferred to the Base system, the midrange clarity and power-handling of the paired monitors are greatly enhanced.

Industry-defining clarity

Force-cancelling driver configuration and highest quality components lead into industry-defining clarity, control, and low frequency detail.

Simple setup

Always placed under the monitors. Fixed placement and physical proximity between the monitor and bass extender ensure perfect integration.

2-way, 3-way or Amphion way?

Simplicity of a 2-way monitor or the power handling of a 3-way design? The system can easily switch between both with a push of a button or foot switch.

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Authorized dealers for Amphion BaseTwo25

110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
Alma Music & Audio — online and in-store — San Diego, California, United States (website)
Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
Audio Vision San Francisco — online and in-store — San Francisco, California, United States (website)
Audiocompagniet — online and in-store — Odense C, Denmark (website)
audioconcept — in-store — Frei-Laubersheim, Rheinland-Pfalz, Germany (website)

and 38 more verified dealers

Authorized dealers for Amphion BaseTwo25

Amphion BaseTwo25

Reviews & Sources

Forum Mentions

Specifications

Manufacturer's Description — Amphion

Elevate your monitors

Unique highlights

Stereo to the lowest octave

Seamless integration

Elevate your monitors

Industry-defining clarity

Simple setup

2-way, 3-way or Amphion way?

Authorized dealers for Amphion BaseTwo25

Online Reviews & Mentions

YouTube Reviews