Falcon Acoustics R.A.M Studio 30 Loudspeaker Lab Report

Lab Report

Falcon Acoustics claims 89dB sensitivity for the Studio 30 but our measured pink noise and 'music' figures of 87.4dB and 86.8dB indicate that 87dB would be a more realistic figure. And the specified 8ohm nominal impedance is optimistic too. With a measured minimum modulus of 2.9ohm, the Studio 30 doesn't even really merit a 4ohm nominal rating, though this would still be more appropriate. Particularly as impedance phase angles are sufficiently high to drop the minimum EPDR (equivalent peak dissipation resistance) to a low 1.3ohm at 379Hz, with another dip to 1.7ohm - a more typical figure for a speaker of the Studio 30's ilk - at 96Hz. These figures indicate that the Studio 30 presents a less than benign amplifier load, requiring an amplifier happy to drive low impedances.


Forward response shows a mild boost to mid and high treble with a slight loss in presence energy


Cabinet modes are well damped and treble is very clean. Only one mild (dome) resonance at 6kHz

Its forward frequency response [Graph 1, above] is characterised by some excess energy around 1.5-2kHz, a hint of a 'BBC dip' through the presence band, and more excess energy in the extreme treble above 10kHz. But the response irregularities are small enough for one of the pair to achieve a creditable ±2.6dB response error, although the other does less well at ±3.7dB. Pair matching over the same 300Hz-20kHz range is a little poor at ±2.5dB but falls to a better ±1.3dB below 11kHz. Diffraction-corrected nearfield measurements showed the bass extension to be 57Hz (-6dB re. 200Hz) and the low-frequency response to be classic for a reflex-loaded loudspeaker: almost flat down to 70Hz with a steep 24dB/octave roll-off thereafter. The CSD waterfall [Graph 2, above] shows almost perfect behaviour through the treble: fast initial decay with only low-level resonances evident, most notably at around 6kHz. KH

Sensitivity (SPL/1m/2.83V – Mean/IEC/Music) 88.2dB/87.4dB/86.8dB
Impedance modulus: minimum & maximum (20Hz–20kHz) 2.9ohm @ 297Hz, 29.9ohm @ 25Hz
Impedance phase: minimum & maximum (20Hz–20kHz) –67° @ 75Hz, 61° @ 536Hz
Pair matching/Resp. error (300Hz–20kHz) ±2.5dB/ ±3.7dB/±2.6dB
LF/HF extension (–6dB ref 200Hz/10kHz) 57Hz / >40kHz/>40kHz
THD 100Hz/1kHz/10kHz (for 90dB SPL/1m) 0.5% / 0.1% / 0.4%
Dimensions (HWD) / Weight (each) 1110x215x300mm / 35kg
Price: £3495-£4095 (depending on finish)
Falcon Acoustics Ltd
Supplied by: Karma-AV Ltd, York
01865 358001