RSL Outsider II vs OSD Audio AP650

Last updated: October 5, 2026

Short answer: the OSD Audio AP650, if you are buying new. The RSL Outsider II ranks higher than it (#6 vs #10 of 13 outdoor speakers, 3.4/5 vs 2.9/5) but is discontinued, so only consider it used; the OSD Audio AP650 is still sold new at $199.99.

RSL Outsider II vs OSD Audio AP650

The RSL Outsider II is the more accurate choice. Scores 2.93 on spinorama (6.07 with subwoofer) tested on Klippel NFS. Its measured preference score, a predictor of how neutral it sounds, is 2.93 against 2.12 for the OSD Audio AP650. Watch for: Modest sensitivity and limited dynamic ceiling at high listening levels outdoor.

Why pick the OSD Audio AP650: Affordable $200/pair price with a solid 6.5” woofer. The tradeoff: Preference score is 2.12 (5.30 with sub) due to notable mid-frequency irregularities and uneven directivity through the crossover handover.

Buy the OSD Audio AP650 new; the RSL Outsider II is no longer sold new, so it only makes sense as a used find.

Looking for alternatives? See the complete Passive Home rankings.

Specifications Side By Side

RSL Outsider II OSD Audio AP650
Price$300 per pair Discontinued$199.99 per pair
Ranked#6 of 13 in Outdoor Speakers#10 of 13 in Outdoor Speakers
Drivers6.5” mineral-filled polypropylene cone woofer, 1” silk dome tweeter6.5” polypropylene cone woofer, 1” silk dome tweeter
ConfigurationPassive 2-wayPassive 2-way
Sensitivity88dB90dB
Impedance8 ohms8 ohms
Recommended Power25-100W-
EnclosureSealed all-weather composite enclosureSealed composite IPX6 all-weather
Dimensions12.5”H x 7.8”W x 7.2”D (318 x 197 x 184 mm)12”H x 8”W x 8”D (305 x 203 x 203 mm)
Weight7.1 lbs (3.2 kg)8.6 lbs (3.9 kg)
Bass Extension (-3dB)87.9Hz (measured, Audio Science Review)95.2Hz (measured, Audio Science Review)
Bass Extension (-6dB)74.7Hz (measured, Audio Science Review)74.7Hz (measured, Audio Science Review)
Bass Extension (-10dB)54.2Hz (measured, Audio Science Review)48.3Hz (measured, Audio Science Review)
Spinorama Preference Score2.932.12
Spinorama Preference Score with Perfect Sub6.075.30
Power Handling-150W

How RSL Outsider II compares with other leading options:

Prices on this page were last checked October 4, 2026 at 9:58 PM UTC. Product prices and availability are accurate as of that date/time 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.

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The Two Speakers In Full

RSL Outsider II: $300 per pair Discontinued eBay

RSL Outsider II ranking card

Pros: Scores 2.93 on spinorama (6.07 with subwoofer) tested on Klippel NFS. Neutral listening window across the midrange and wider vertical coverage than typical 2-way budget competitors. Reaches 74.7Hz at -6dB with clean low-end transition. Measured bass extension of 87.9Hz (-3dB).

Cons: Modest sensitivity and limited dynamic ceiling at high listening levels outdoor. Cabinet and bracket feel somewhat lightweight, and the model has been discontinued by RSL.

Bass Extension (-10dB)54.2Hz (measured, Audio Science Review)
Bass Extension (-3dB)87.9Hz (measured, Audio Science Review)
Bass Extension (-6dB)74.7Hz (measured, Audio Science Review)
ConfigurationPassive 2-way
Dimensions12.5”H x 7.8”W x 7.2”D (318 x 197 x 184 mm)
Drivers6.5” mineral-filled polypropylene cone woofer, 1” silk dome tweeter
EnclosureSealed all-weather composite enclosure
Impedance8 ohms
Recommended Power25-100W
Sensitivity88dB
Spinorama Preference Score2.93
Spinorama Preference Score with Perfect Sub6.07
Weight7.1 lbs (3.2 kg)

OSD Audio AP650: $199.99 per pair Amazon eBay

OSD Audio AP650 ranking card

Pros: Affordable $200/pair price with a solid 6.5” woofer. Klippel NFS tests show reasonably smooth listening window directivity in the lower registers and bass reaching 74.7Hz (-6dB). High 90dB sensitivity makes it easy to power with inexpensive multi-zone amplifiers. Measured bass extension of 95.2Hz (-3dB).

Cons: Preference score is 2.12 (5.30 with sub) due to notable mid-frequency irregularities and uneven directivity through the crossover handover. High-frequency treble rolls off early compared to indoor hi-fi designs.

Bass Extension (-10dB)48.3Hz (measured, Audio Science Review)
Bass Extension (-3dB)95.2Hz (measured, Audio Science Review)
Bass Extension (-6dB)74.7Hz (measured, Audio Science Review)
ConfigurationPassive 2-way
Dimensions12”H x 8”W x 8”D (305 x 203 x 203 mm)
Drivers6.5” polypropylene cone woofer, 1” silk dome tweeter
EnclosureSealed composite IPX6 all-weather
Impedance8 ohms
Power Handling150W
Sensitivity90dB
Spinorama Preference Score2.12
Spinorama Preference Score with Perfect Sub5.30
Weight8.6 lbs (3.9 kg)