MoFi SourcePoint 888 vs Polk T50

Last updated: August 9, 2026

Short answer: the MoFi SourcePoint 888 for the higher ranking, the Polk T50 for the lower price. The MoFi SourcePoint 888 ranks #10 of 25 floorstanding speakers at $5500. The Polk T50 ranks #21 at $249, $5251 cheaper.

On the MoFi SourcePoint 888 side: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz. The tradeoff: A significant investment, best ordered from a dealer with a good return policy.

The case for the Polk T50: Pretty deep bass for the price. Set against that: 5dB peak at 1khz, 4dB bright top end from 11khz on up.

One note: the Polk T50 is discontinued, but it still ranks #21 of 25 floorstanding speakers, ahead of most of what is still sold new, so it is worth considering used.

Buy the MoFi SourcePoint 888 if the ranking matters more than the price. Buy the Polk T50 if the price matters more than the ranking.

Specifications Side By Side

MoFi SourcePoint 888 Polk T50
Price$5500$249.00 Discontinued
Ranked#10 of 25 in Large Size Floorstanding Speakers#21 of 25 in Large Size Floorstanding Speakers
Bass Extension (-10dB)26Hz38Hz
Bass Extension (-3dB)34Hz47Hz
Dimensions41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm)-
Impedance6 ohms4 ohms
DriversDual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter2x 6.5" bi-laminate paper cone woofers, 1x 1" Terylene dome tweeter + 2x 8" passive bass radiators
Sensitivity85.5dB-
Weight94.8 lbs / 43 kg each75.4 lbs / 34.2 kg
Woofer CabinetRear ported-
Discontinued-Yes

The Two Speakers In Full

MoFi SourcePoint 888: $5500 Crutchfield

MoFi SourcePoint 888 ranking card

Pros: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz, giving genuinely full-range output (F3 34Hz, F10 26Hz) other than the deepest subsonic content. Ranked by the reviewer among his personal top three speakers out of roughly 200 tested, alongside the KEF Blade 2 Meta and Dutch & Dutch 8C, despite costing a small fraction of either. Excellent compression/dynamic-range linearity, holding its own against much pricier speakers like the March Audio Sointuva AWG, KEF Reference 1 Meta, and KEF Blade 2 Meta. On-axis (0°) and 30°-off-axis estimated in-room responses track within about 1-1.5dB of each other above 500Hz, so tonal balance barely changes with placement or listening angle - excellent for multi-seat home theater or entertaining. Wide horizontal dispersion of about ±60°. Distortion stays low: under 1% at 86dB, and under 1% above 200Hz even at 96dB, with multitone distortion mostly under 1% as well. Not a difficult amplifier load (5-ohm minimum impedance, 4.2-ohm minimum EPDR). Checks the three boxes the reviewer considers essential for a home theater speaker: low compression, low distortion, and excellent directivity.

Cons: A significant investment, best ordered from a dealer with a good return policy. Large and heavy floorstander (about 96 lbs, 42” tall) requiring real floor space and rear clearance. Positioning is fairly specific: needs about 2 feet from the rear wall - closer causes boominess in the 40-50Hz region, farther loses bass extension. Vertical dispersion (about ±50°) is narrower than horizontal (about ±60°), since the two 8” woofers are spaced vertically apart on a tower cabinet, causing some vertical mismatch at lower frequencies. A small on-axis dip around 500Hz and a deliberately lower tweeter level (about 0.5dB below the midrange) are intentional design choices for smoother in-room response, but mean the raw on-axis measurement isn’t perfectly flat. A mild diffraction-related dip appears around 3kHz in directivity measurements. Toeing the speaker out more than about 10° starts to noticeably reduce top-end energy.

Bass Extension (-10dB)26Hz
Bass Extension (-3dB)34Hz
Dimensions41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm)
DriversDual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter
Impedance6 ohms
Sensitivity85.5dB
Weight94.8 lbs / 43 kg each
Woofer CabinetRear ported

Polk T50: $249.00 Discontinued Amazon

Polk T50 ranking card

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. Discontinued.

Bass Extension (-10dB)38Hz
Bass Extension (-3dB)47Hz
DiscontinuedYes
Drivers2x 6.5" bi-laminate paper cone woofers, 1x 1" Terylene dome tweeter + 2x 8" passive bass radiators
Impedance4 ohms
Weight75.4 lbs / 34.2 kg

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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.