Reference 3a Royal Master Control loudspeaker Specifications
Description: Two-way stand-mounted loudspeaker. Driver complement: one soft-dome tweeter, one Hyper-Exponential 8" woven carbon-fibercone woofer/midrange driver. Crossover: impedance-compensated slow-ratetype high-pass, 3dB at 3kHz; no low-pass, the woofer/midrange rolls off naturally from 3kHz to 10kHz at 6dB/octave. Frequency response: 44Hz20kHz, 3dB. Sensitivity: 92dB/W/m. Nominal impedance 8 ohms (6 ohms minimum).
Reference 3a Royal Master Control loudspeaker
PSB Imagine T2 Tower loudspeaker Measurements
Sidebar 3: Measurements
I measured the PSB Imagine T2 Tower using DRA Labs' MLSSA system and calibrated DPA 4006 and Earthworks QTC-40 microphones. The T2 is specified as having an anechoic voltage sensitivity of 88dB; my estimate was slightly lower, at 87.3dB(B), almost within the margin of error. PSB specifies the impedance as being 6 ohms, with a minimum magnitude of 4 ohms. However, as fig.1 shows, the impedance drops below 6 ohms for almost the entire midrange, with a minimum value of 2.4 ohms at 570Hz.
PSB Imagine T2 Tower loudspeaker Associated Equipment
Sidebar 2: Associated Equipment
Digital Source: Ayre Acoustics CX-7eMP CD player.
Preamplifiers: Convergent Audio Technology SL-1 Renaissance, Simaudio Moon Evolution 740P.
Power Amplifiers: Simaudio Moon Evolution 860A, McIntosh Labs MC2
PSB Imagine T2 Tower loudspeaker Specifications
Sidebar 1: Specifications
Description: Five-way, floorstanding loudspeaker. Drive-units: 1", ferrofluid-cooled, titanium-dome tweeter with neodymium magnet; 4" clay/ceramic-filled polypropylene-cone midrange; three 51/4" clay/ceramic filled polypropylene cone woofers. Crossover: 4th-order Linkwitz-Riley at 500Hz and 1.8kHz. Frequency response: 34Hz23kHz, ±3dB (on axis); 36Hz20kHz, ±1.5dB, (on axis); 36Hz10kHz (30° off axis). LF cutoff, 10dB: 29Hz. Impedance: 6 ohms nominal, 4 ohms minimum.
PSB Imagine T2 Tower loudspeaker Page 2
But is it possible for an audio component to be accurate and euphonic? There are certainly speakers out there flying the Accuracy flag that are impressive on first hearing, providing a sense of immediacy and a focus on musical details, but that, on prolonged listening, leave you with a sense of fatigue. I think this is what Gordon was alluding to in his tongue-in-cheek way when he described accuracy as something nobody likes when he hears it.
PSB Imagine T2 Tower loudspeaker
What can you tell about the intrinsic sound quality of a loudspeaker if you've heard it only at an audio show? Arguably, not much. If it sounds bad, there may be a number of reasons for that, only one being the speaker itself. It may be the acoustics of the room, problems with speaker setup, poorly matched associated equipment, insufficient break-in/warm-up, or poor choice of demo recordings. Other conditions may not be conducive to the speaker revealing its potential, such as not being able to sit in the sweet spot, being distracted by people talking throughout the demo, etc.
Music in the Round #63 Contacts
exaSound Audio Design, 3219 Yonge St., Suite 354, Toronto, Ontario M4N 3S1, Canada. Web: www.exasound.com.
Music in the Round #63 Page 2
In addition, the filters chosen by NuForce's AutoEQ, and confirmed by my ears, revealed very large corrections throughout the midrange and none for the subwoofer. The audible result of all this was a harsh midrange, somewhat boomy but hollow bass, and a strong image shift to the left. Completely unacceptable and inferior to the out-of-box sound before any adjustments to these parameters were made!
Fortunately, the Cirrus chipset in the AVP-18 offers a potent parametric equalizer.
Music in the Round #63
Make It Simple. . .