Test Bench: Five Mid-Price Subwoofers
(continued)
Klipsch RW-12d
This subwoofer has a classic dynamic characteristic, with high output at 62 Hz that falls off by 14 dB per octave below. It also delivers a true 20 Hz, however. Marked settings for the crossover-frequency control were accurate only in the middle of the dial.
In the lab
Frequency response (at 0.5 meter)
Flat: 35 to105 Hz ±2.1 dB
Punch: +3.6 dB from 35 to 100 Hz
Depth: + 2.6 dB below 75 Hz
Bass limits, Flat setting (lowest frequency and maximum output with limit of 10% distortion at 2 meters in a large room)
| Frequency | dB SPL |
| 62 Hz | 115 |
| 50 Hz | 112 |
| 40 Hz | 110 |
| 32 Hz | 107 |
| 25 Hz | 98 |
| 20 Hz | 86 |
Average maximum output, 25 to 62 Hz: 108 dB SPL
Maximum output: 115 dB SPL at 62 Hz
Bass limit: 20 Hz at 86 dB SPL
Crossover
| Control Setting | Measured Frequency | Level Change |
| Off | 105 Hz | – |
| 120 Hz | 94 Hz | - |
| 100 Hz | 82 Hz | - |
| 75 Hz | 77 Hz | - |
| 50 Hz | 70 Hz | -2.7 dB |
| 40 Hz | 60 Hz | -5 dB |
Low-pass slope: 18 dB per octave
