The Definitive Technology Demand D11 ranks #59 out of 134 total Large Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: Definitive Technology
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#59 Definitive Technology Demand D11: $999 per pair Discontinued Amazon eBay
Pros: CEA2034 spinorama shows a mostly flat, well-controlled response: close to class-leading if not for one narrow resonance. Distortion is well controlled and the deep cabinet lets it play loud without bottoming out except on the deepest bass content. Cabinet construction and finish are a clear step above budget speakers. Measured bass extension of 60.1Hz (-3dB), with a measured sensitivity of 87dB.
Cons: A narrow but real ~600Hz jaggy shows up consistently in on-axis and off-axis measurements. Horizontal directivity is uneven because of the offset tweeter position, giving the left and right channels slightly different off-axis energy. There’s a low-frequency rattle/noise at very deep bass levels the reviewer called “horrendous.” Discontinued; the Demand series has moved on to newer models.
How it compares: Just above it: Yamaha NS-800A - $4001 more, 2.1Hz lower bass extension (-3dB). Just below it: Technics SB-C700 - $700 more, 2Hz lower bass extension (-3dB).
| Bass Extension (-10dB) | 46.3Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 60.1Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 13H x 7.25W x 12.5D in |
| Drivers | 6.5” BDSS polypropylene woofer, 1” aluminum dome tweeter (offset), 6x10” oval passive radiator |
| Frequency Response | 48Hz - 24kHz (61Hz - 22kHz -3dB) (Manufacturer specified) |
| Impedance | 8 ohms nominal |
| Power Handling | 20-200W recommended |
| Sensitivity | 87dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.12 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.48 (spinorama.org) |
| Weight | 17 lbs (7.7 kg) each |
| Woofer Cabinet | passive radiator |
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