Short answer: the Definitive Technology BP-9020 for better sound quality, the Polk T50 for the lower price. The Definitive Technology BP-9020 ranks #39 of 68 floorstanding speakers at $500. The Polk T50 ranks #55 at $249, $251 cheaper.
What the Polk T50 offers: Pretty deep bass for the price. Distortion at 86dB SPL/1m is reasonably controlled outside a narrow spike around 250Hz. The reviewer notes performance is “not too bad for a budget speaker” once the two main tonal issues are addressed with EQ. Watch for: 5dB peak at 1khz, 4dB bright top end from 11khz on up. Just okay vertical off axis. Impedance and phase show several resonances between 200Hz-1kHz, with a minimum impedance of 4.2 ohms. Distortion rises substantially at 96dB SPL/1m across the midrange, with repeated peaks between 100Hz-2kHz.
What the Definitive Technology BP-9020 offers: Integrated powered 8” side-firing subwoofer with a 150-watt Class D amplifier provides exceptional sub-bass extension down to an F3 of 35Hz and F10 of 29Hz without requiring a standalone subwoofer enclosure. Forward-Focused Bipolar Array technology (dual 3.5” front midrange drivers + 1” annealed aluminum dome tweeter, plus a 3.5” rear-firing midrange driver) creates a remarkably wide, spacious soundstage with broad room envelopment. On-axis frequency response stays smooth and relatively neutral when listened to directly aligned with the tweeter. Measured average sensitivity of 87.7dB SPL (2.83V/1m) allows comfortable drive from standard multi-channel receivers. Watch for: Significant high-frequency boost creates notable treble brightness and noticeable sibilance on vocal s-sounds. Bipolar rear driver radiation creates a diffuse soundstage that compromises razor-sharp imaging focus and pinpoint instrument placement. DSP-based internal limiter aggressively compresses output below 80Hz at higher listening levels, causing lower mid-bass and sub-bass impact to diminish as volume increases. Midrange clarity shows slight ‘cuppiness’ and upper-frequency directivity irregularities due to front/rear driver interaction.
Buy the Polk T50 if the price matters more than sound quality. Buy the Definitive Technology BP-9020 if sound quality matters more than the price.
If sound quality matters at all to you, skip the Polk T50. It ranks near the bottom of the 68 floorstanding speakers, so look higher up the list instead.
Specifications Side By Side
| Polk T50 | Definitive Technology BP-9020 | |
|---|---|---|
| Price | $249.00 | $500.00 Discontinued |
| Ranked | #55 of 68 in Large Size Floorstanding Speakers | #39 of 68 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) | 29Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 47Hz (measured, Audio Science Review) | 35Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review) | 8 ohms nominal |
| Drivers | 2x 6.5" bi-laminate paper cone woofers, 1x 1" Terylene dome tweeter + 2x 8" passive bass radiators | 1 in. annealed aluminum dome tweeter, two 3.5 in. BDSS midrange (front), one 3.5 in. BDSS midrange (rear), 8 in. powered subwoofer |
| Weight | 75.4 lbs / 34.2 kg | 30 lbs / 13.6 kg each |
| Sensitivity | 86.3dB (2.83V/1m, measured by Audio Science Review) | 87.7dB (measured average, Erin’s Audio Corner) |
| Dimensions | 40.4"H x 9.3"W x 12.5"D (1026.2 x 235.0 x 317.5 mm) | 35.3"H x 11"W x 13"D (895.4 x 279.4 x 330.2 mm) |
| Woofer Cabinet | passive radiator | ported, slot |
| Discontinued | - | Yes |
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The Two Speakers In Full
Polk T50: $249.00 Amazon eBay
Pros: Pretty deep bass for the price. Distortion at 86dB SPL/1m is reasonably controlled outside a narrow spike around 250Hz. The reviewer notes performance is “not too bad for a budget speaker” once the two main tonal issues are addressed with EQ.
Cons: 5dB peak at 1khz, 4dB bright top end from 11khz on up. Just okay vertical off axis. Impedance and phase show several resonances between 200Hz-1kHz, with a minimum impedance of 4.2 ohms. Distortion rises substantially at 96dB SPL/1m across the midrange, with repeated peaks between 100Hz-2kHz.
Full Polk T50 review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 47Hz (measured, Audio Science Review) |
| Dimensions | 40.4"H x 9.3"W x 12.5"D (1026.2 x 235.0 x 317.5 mm) |
| Drivers | 2x 6.5" bi-laminate paper cone woofers, 1x 1" Terylene dome tweeter + 2x 8" passive bass radiators |
| Impedance | 4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 86.3dB (2.83V/1m, measured by Audio Science Review) |
| Weight | 75.4 lbs / 34.2 kg |
| Woofer Cabinet | passive radiator |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Definitive Technology BP-9020: $500.00 Discontinued eBay
Pros: Integrated powered 8” side-firing subwoofer with a 150-watt Class D amplifier provides exceptional sub-bass extension down to an F3 of 35Hz and F10 of 29Hz without requiring a standalone subwoofer enclosure. Forward-Focused Bipolar Array technology (dual 3.5” front midrange drivers + 1” annealed aluminum dome tweeter, plus a 3.5” rear-firing midrange driver) creates a remarkably wide, spacious soundstage with broad room envelopment. On-axis frequency response stays smooth and relatively neutral when listened to directly aligned with the tweeter. Measured average sensitivity of 87.7dB SPL (2.83V/1m) allows comfortable drive from standard multi-channel receivers.
Cons: Significant high-frequency boost creates notable treble brightness and noticeable sibilance on vocal s-sounds. Bipolar rear driver radiation creates a diffuse soundstage that compromises razor-sharp imaging focus and pinpoint instrument placement. DSP-based internal limiter aggressively compresses output below 80Hz at higher listening levels, causing lower mid-bass and sub-bass impact to diminish as volume increases. Midrange clarity shows slight ‘cuppiness’ and upper-frequency directivity irregularities due to front/rear driver interaction. Discontinued.
Full Definitive Technology BP-9020 review and specifications →
| Bass Extension (-10dB) | 29Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 35Hz (measured, Erin's Audio Corner) |
| Dimensions | 35.3"H x 11"W x 13"D (895.4 x 279.4 x 330.2 mm) |
| Discontinued | Yes |
| Drivers | 1 in. annealed aluminum dome tweeter, two 3.5 in. BDSS midrange (front), one 3.5 in. BDSS midrange (rear), 8 in. powered subwoofer |
| Impedance | 8 ohms nominal |
| Sensitivity | 87.7dB (measured average, Erin's Audio Corner) |
| Weight | 30 lbs / 13.6 kg each |
| Woofer Cabinet | ported, slot |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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