Cinema Grand
Three great systems for a thousand and change
(continued)
| Aperion Intimus 532 System | Atlantic Technology System 1200 | Wharfedale Diamond 9 Series | |
| Frequency response (at 2 meters) | |||
| front left/right | 89 Hz to 16.8 kHz ±2.7 dB |
92 Hz to 14.8 kHz ±4.2 dB |
63 Hz to 12.8 kHz ±3.9 dB |
| center | 110 Hz to 17.8 kHz ±4.0 dB |
108 Hz to 14.4 kHz ±3.0 dB |
90 Hz to 14.9 kHz ±3.3 dB |
| surround | 115 Hz to 17.8 kHz ±5.2 dB |
92 Hz to 14 kHz ±4.2 dB |
100 Hz to 9.1 kHz ±3.6 dB |
| subwoofer | 37 Hz to 110 Hz ±2.2 dB |
42 Hz to 120 Hz ±1.8 dB |
45 Hz to 117 Hz ±2.0 dB |
| Sensitivity (SPL at 1 meter with 2.8 volts of pink-noise input) | |||
| front left/right | 89 dB | 87 dB | 88 dB |
| center | 92 dB | 91 dB | 89 dB |
| surround | 88 dB | 87 dB | 86 dB |
| Impedance (minimum/nominal) | |||
| front left/right | 6.6/12 ohms | 4.7/8 ohms | 4.1/8 ohms |
| center | 5.2/8 ohms | 4.1/7 ohms | 4.7/8 ohms |
| surround | 8.7/14 ohms | 4.7/8 ohms | 4.0/6 ohms |
| Bass limits (lowest frequency and maximum SPL with limit of 10% distortion at 2 meters in a large room) | |||
| front left/right | 80 Hz at 88 dB | 80 Hz at 81 dB | 62 Hz at 74 dB |
| center | 62 Hz at 69 dB | 80 Hz at 79 dB | 62 Hz at 73 dB |
| surround | 100 Hz at 70 dB | 80 Hz at 81 dB | 80 Hz at 81 dB |
| subwoofer | 20 Hz at 77 dB | 25 Hz at 84 dB | 25 Hz at 84 dB |
| average SPL from 25 to 62 Hz | 105 dB | 97 dB | 99 dB |
| maximum SPL | 110.3 dB | 104 dB | 110 dB |
| bandwidth uniformity | 95% | 94% | 90% |
All of the curves in the frequency-response graphs are weighted to reflect how sound arrives at a listener’s ears with normal speaker placement. The curve for the left/right front channels reflects response averaged over a ±30° window, with double weight at 30° (the most typical listening angle). The center-channel curve reflects response averaged over ±45°, with double weight directly on-axis of the primary listener. The surround-channel curve shows response averaged over ±60°, since most sound from these speakers will be reflected from room walls before reaching the listener. The subwoofers’ bass limits were measured with them set to maximum bandwidth and placed in the optimal corner of a 7,500-cubic-foot room. In a smaller room users can expect 2 to 3 Hz deeper extension and up to 3 dB higher sound-pressure level (SPL).
