Product Price Frequency Response (Hz) Max Peak SPL (dB) Impedance (Ohms) Crossover Frequency (Hz) Driver Size (inch) Power Handling (Watts) Connections
Amphion Amphion One15 2-Way Passive Studio Monitor - Single
US
£833.04 49 - 20.000 Hz ±3 dB 8 Ohms 1600 Hz 5.5in aluminum woofer and 1in titanium tweeter 20 - 100 W 4mm sockets and binding-post input connections

The Amphion One15 is a passive, two-way nearfield studio monitor using a passive radiator design with a 5.5in aluminum woofer and a 1in titanium tweeter. It crosses over at 1600 Hz and is specified for a frequency response of 49 - 20.000 Hz ±3 dB, designed for accurate, transparent monitoring for tracking, mixing, and mastering.

★ Ideal for

For heavy use, its passive radiator two-way design and 8 Ohms impedance with a 20 - 100 W power recommendation (plus robust 5.5in aluminum woofer and 1in titanium tweeter) make it suitable for driving consistently with external amps across a wide power band.

Amphion Amphion One18 2-Way Passive Studio Monitor - Single
US
£1363.16 45 - 20 000 Hz +/-3dB 8 Ω 1600 Hz 6½ in aluminum woofer 100 - 350 W

Amphion One18 is a 2-way passive studio monitor using a titanium tweeter and a 6½ in aluminum woofer with a sealed enclosure plus passive radiator. It's DSP-free and specified with a crossover point at 1600 Hz for point-source operation and detailed, phase-coherent monitoring. Best suited to producers and mix engineers who want passive, accurate all-around nearfield monitoring driven by an external amplifier.

★ Ideal for

For heavy use, choose the One18 because it's a passive monitor with a specified power recommendation of 100 - 350 W and an 8 Ω impedance load, making it straightforward to pair with robust external amplification for sustained high-output sessions.

ATC Loudspeakers ATC Loudspeakers SCM12 Pro 2-Way Passive Monitor - Pair
US
£1507.05 56Hz - 22kHz (-6dB freestanding) 108dB (per pair @ 1m) 8 Ohm 2.2kHz 6 in 75 to 300 Watts Binding Posts/4mm Plugs, bi-wire

The ATC SCM12 Pro is a compact 2-way passive nearfield studio monitor designed for critical listening in control rooms and smaller mixing setups. It uses an ATC 6 in CLD mid/bass driver and an ATC 1 in dual suspension soft-dome tweeter, with a specified 2.2kHz passive crossover. It's intended to be driven by an external power amplifier.

★ Ideal for

For heavy use, the SCM12 Pro specifies a passive crossover and a recommended external power range of 75 to 300 Watts with an 8 Ohm nominal impedance, and it uses ATC's CLD drive unit and dual-suspension tweeter design aimed at maintaining accuracy at higher sound pressure levels.