Short answer: the Reflector Audio Square Two if sound quality matters most, the JBL 305P MKII if price matters most. The Reflector Audio Square Two ranks #5 of 100 powered bookshelf speakers, rated 4.5/5, at $6,499. The JBL 305P MKII ranks #17, rated 4.3/5, at $289, $6,210 cheaper.
The case for the JBL 305P MKII: Erin’s Klippel data gives 5.38 standalone and 7.52 with an ideal subwoofer, with bass reaching -3dB around 51Hz. The tradeoff: The 3.3dB midrange span and rising response show it is not perfectly neutral.
The Reflector Audio Square Two is the more accurate pick. The manufacturer-supplied data shows a very small 1.1dB span from 300Hz to 5kHz and preference scores of 6.52 standalone and 8.34 with an ideal subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 6.52 against 5.38 for the JBL 305P MKII. Watch for: The nominal 60-by-60-degree pattern calls for careful aiming and gives less freedom to move than wide-dispersion monitors.
Buy the JBL 305P MKII if the price matters more than sound quality. Buy the Reflector Audio Square Two if sound quality matters more than the price.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| JBL 305P MKII | Reflector Audio Square Two | |
|---|---|---|
| Price | $289.00 per pair | $6,499 per pair |
| Ranked | #17 of 100 in Medium Size Powered Bookshelf Speakers | #5 of 100 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 11.7”H x 7.3”W x 9.1”D (297.2 x 185.4 x 231.1 mm) | 12.6”W x 13.6”H x 12.8”D (320 x 345 x 325 mm) |
| Frequency Response | 49 Hz - 20 kHz (+-3 dB) (Manufacturer specified) | 40Hz-26kHz (-6dB) |
| Bass Extension (-3dB) | 50Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | - |
| Inputs | XLR, TRS | Analogue XLR/RCA, AES digital XLR, S/PDIF, TOSLINK optical |
| Weight | 10.4 lbs (4.7 kg) each | 42.8 lbs (19.4 kg) each |
| Drivers | 5” (127mm) woofer | 4x 5” woofers, 1x horn-loaded compression driver (ring diaphragm) |
| App | No | - |
| Bluetooth | No | No |
| EQ | Yes (Room adjustment) | - |
| Amplifier Power | 81w Per Speaker | 250W to woofers, 100W to compression driver (Hypex Class-D) |
| Sensitivity | 91.1dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Spinorama Preference Score | 5.38 | 6.52 |
| Spinorama Preference Score with Perfect Sub | 7.52 | 8.34 |
| XLR Input | Yes | Yes |
| RCA Input | No | Yes |
| TRS Input | Yes | No |
| Optical Input | No | Yes |
| Coaxial Input | No | Yes |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | Yes |
| Aux Input | No | No |
| Enclosure | - | 2-way active coaxial horn monitor, bass-reflex (convertible to sealed) |
| Country | - | Made in Latvia |
| Maximum SPL | - | 118dB @ 1m (EIA-426B, single monitor) (manufacturer specified) |
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Prices on this page were last checked October 9, 2026 at 8:01 AM 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
JBL 305P MKII: $289.00 per pair Amazon eBay
Older model: the JBL LSR305 (ranked lower, rated 4.2/5).
Same family: the JBL 306P MKII (larger bookshelf, rated 4.1/5) and the JBL 308P MKII (larger bookshelf, rated 4.4/5).
Pros: Erin’s Klippel data gives 5.38 standalone and 7.52 with an ideal subwoofer, with bass reaching -3dB around 51Hz. Broad horizontal coverage and reasonably smooth reflected sound support stable imaging across a desk. The existing review reports effective limiting and little sustained thermal compression, making it a strong budget-monitor option rather than just a speaker with a promising frequency curve. Measured bass extension of 50Hz (-3dB), with a measured sensitivity of 91.1dB.
Cons: The 3.3dB midrange span and rising response show it is not perfectly neutral. A port-related feature around 1.6kHz and some excess treble can be audible; the review recommends the treble-trim switch. Vertical crossover interference makes ear height important. Amplifier hiss may matter in very quiet nearfield use, and rear-port placement needs room-boundary adjustment.
Full JBL 305P MKII review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 81w Per Speaker |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 50Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 11.7”H x 7.3”W x 9.1”D (297.2 x 185.4 x 231.1 mm) |
| Drivers | 5” (127mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 49 Hz - 20 kHz (+-3 dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, TRS |
| Optical Input | No |
| RCA Input | No |
| Sensitivity | 91.1dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.38 |
| Spinorama Preference Score with Perfect Sub | 7.52 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 10.4 lbs (4.7 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner Review Measurements More from Erin’s Audio Corner →
- Audio Science Review Measurements More from Audio Science Review →
- Erin’s Audio Corner: LIVE! JBL 305P MkII Powered Studio Monitor Review
- DSAUDIO.review: DSAUDIO.review Focal Alpha 50 EVO vs JBL 305P MKII sound.DEMO More from DSAUDIOreview →
- DSAUDIO.review: JBL 305P MKII vs Yamaha HS5 6-Track Comparison
- DSAUDIO.review: DSAUDIO.review JBL 305P MKII vs KRK Classic 5 CL5G3 sound.DEMO
- DSAUDIO.review: JBL 305P MKII vs Adam Audio T5V 6-Track Comparison
- DSAUDIO.review: DSAUDIO.review Adam Audio A5X vs JBL 305P MKII sound.DEMO
- DSAUDIO.review: DSAUDIO.review Kali Audio LP-6 V2 (2nd Wave) vs JBL 305P MKII sound.DEMO
- DSAUDIO.review: DSAUDIO.review Edifier MR4 vs JBL 305P MKII sound.DEMO
- DSAUDIO.review: Kali Audio IN-5 vs JBL 305P MKII Sound & Frequency Response Comparison
- DSAUDIO.review: JBL 308P MKII vs JBL 305P MKII Sound & Frequency Response Comparison
- DSAUDIO.review: Neumann KH80 DSP vs JBL 305P MKII Sound & Frquency Response Comparison
- DSAUDIO.review: JBL 305P MKII vs PreSonus Eris E5 6-Track Comparison
- Erin’s Audio Corner Measurements (spinorama.org)
- Jasper Tech: Best Desktop Computer Speakers for Every Budget – 2026 More from Jasper Tech →
- Jasper Tech: Best Powered Bookshelf Speakers for Every Budget - 2025
- Jasper Tech: Are the iLoud Micro Monitor Pro the Best Studio Monitor Speakers for your Home Studio?
- Head-to-Head Comparisons
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Reflector Audio Square Two: $6,499 per pair Monheim Microphones eBay
Pros: The manufacturer-supplied data shows a very small 1.1dB span from 300Hz to 5kHz and preference scores of 6.52 standalone and 8.34 with an ideal subwoofer. Its horn-centered layout and four surrounding woofers offer a compact, controlled-radiation monitor, with a measured -3dB point around 49Hz. The linked Sound on Sound review also supports its use for detailed monitoring.
Cons: The nominal 60-by-60-degree pattern calls for careful aiming and gives less freedom to move than wide-dispersion monitors.
Full Reflector Audio Square Two review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 250W to woofers, 100W to compression driver (Hypex Class-D) |
| Aux Input | No |
| Bluetooth | No |
| Coaxial Input | Yes |
| Country | Made in Latvia |
| Dimensions | 12.6”W x 13.6”H x 12.8”D (320 x 345 x 325 mm) |
| Drivers | 4x 5” woofers, 1x horn-loaded compression driver (ring diaphragm) |
| Enclosure | 2-way active coaxial horn monitor, bass-reflex (convertible to sealed) |
| Frequency Response | 40Hz-26kHz (-6dB) |
| HDMI Input | No |
| Inputs | Analogue XLR/RCA, AES digital XLR, S/PDIF, TOSLINK optical |
| Maximum SPL | 118dB @ 1m (EIA-426B, single monitor) (manufacturer specified) |
| Optical Input | Yes |
| RCA Input | Yes |
| Spinorama Preference Score | 6.52 |
| Spinorama Preference Score with Perfect Sub | 8.34 |
| TRS Input | No |
| USB Input | No |
| Weight | 42.8 lbs (19.4 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Reflector Audio Square Two vs Neumann KH80 DSP
- Reflector Audio Square Two vs IK Multimedia iLoud MTM MKII
- Reflector Audio Square Two vs Kali Audio IN-5
- Reflector Audio Square Two vs KEF LSX II LT
- Reflector Audio Square Two vs Adam Audio T5V
- Reflector Audio Square Two vs Kali LP-UNF
- Reflector Audio Square Two vs Yamaha HS5
- Reflector Audio Square Two vs Edifier S2000MKIII
- See all 12 comparisons