Short answer: the JBL 305P MKII. It ranks #11 of 64 powered bookshelf speakers by sound quality at $319; the Reflector Audio Square Two ranks #26 and costs $6499, so there is not much of a tradeoff to weigh.
What the JBL 305P MKII offers: A fantastic value in studio monitors. Extremely close to the Focal Alpha 50 EVO, almost indistinguishable. Surprisingly deep and wide soundstage. Good horizontal dispersion (~70 degrees). Has a proper limiter that controls output cleanly rather than crudely cutting bass, and holds up well under sustained loud playback with minimal thermal compression. Watch for: Possible slight hissing from the amps at low levels. Rear ported, can be an issue close to walls. A port resonance around 1.6kHz is audible and distracting on some tracks. Midrange is somewhat scooped rather than flat for a studio monitor, and treble runs about 1.5dB hot - Erin’s Audio Corner recommends using the -2dB treble shelf switch. Vertical dispersion narrows around the crossover, so try to stay within about 10 degrees of the tweeter axis.
What the Reflector Audio Square Two offers: An exceptionally flat on-axis deviation of just 0.10dB from a coaxial horn design (four 5” woofers around a compression-driver tweeter) giving nominal 60x60 degree directivity from a compact 32cm cube, with a well-damped bass-alignment Q of 1.31. Sound on Sound’s review praised its detailed, neutral sound that stays phase-coherent with no appreciable latency. Watch for: A directivity-index standard deviation of 4.90, well above the 3-4 range typical of most monitors this size, reflects the narrow, symmetric horn pattern that Sound on Sound and ASR forum members flagged as double-edged, helpful in some rooms but limiting the sweet spot in others. Predicted in-room smoothness (0.49) is only middling, not matching the excellent on-axis figure. It’s a low-volume Latvian product with no published warranty term found anywhere.
Buy the JBL 305P MKII. It ranks higher for sound quality than the Reflector Audio Square Two and costs less, so there is no real case for the other one.
Specifications Side By Side
| JBL 305P MKII | Reflector Audio Square Two | |
|---|---|---|
| Price | $319.00 | $6,499/pair |
| Ranked | #11 of 64 in Medium Size Powered Bookshelf Speakers | #26 of 64 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 (42.8 lbs) each |
| Drivers | 5" (127mm) woofer | 4x 5" woofers, 1x horn-loaded compression driver (ring diaphragm) |
| App | No | - |
| Bluetooth | No | - |
| EQ | Yes (Room adjustment) | - |
| Output Power | 81w Per Speaker | - |
| Sensitivity | 91.1dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Enclosure | - | 2-way active coaxial horn monitor, bass-reflex (convertible to sealed) |
| Power Output | - | 250W to woofers, 100W to compression driver (Hypex Class-D) |
| Max SPL | - | 118dB @ 1m (EIA-426B, single monitor) |
| Country | - | Made in Latvia |
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Prices on this page were last checked August 25, 2026 at 6:19 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: $319.00 Amazon eBay
Pros: A fantastic value in studio monitors. Extremely close to the Focal Alpha 50 EVO, almost indistinguishable. Surprisingly deep and wide soundstage. Good horizontal dispersion (~70 degrees). Has a proper limiter that controls output cleanly rather than crudely cutting bass, and holds up well under sustained loud playback with minimal thermal compression.
Cons: Possible slight hissing from the amps at low levels. Rear ported, can be an issue close to walls. A port resonance around 1.6kHz is audible and distracting on some tracks. Midrange is somewhat scooped rather than flat for a studio monitor, and treble runs about 1.5dB hot - Erin’s Audio Corner recommends using the -2dB treble shelf switch. Vertical dispersion narrows around the crossover, so try to stay within about 10 degrees of the tweeter axis.
Full JBL 305P MKII review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 43Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 50Hz (measured, Erin's Audio Corner) |
| Bluetooth | 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) |
| Inputs | XLR, TRS |
| Output Power | 81w Per Speaker |
| Sensitivity | 91.1dB (measured at 0.3V/1m, Erin's Audio Corner) |
| Weight | 10.4 lbs / 4.7 kg each |
- 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)
- Reddit Search for JBL 305P MKII Review
- Head-to-Head Comparisons
Reflector Audio Square Two: $6,499/pair Monheim Microphones eBay
Pros: An exceptionally flat on-axis deviation of just 0.10dB from a coaxial horn design (four 5” woofers around a compression-driver tweeter) giving nominal 60x60 degree directivity from a compact 32cm cube, with a well-damped bass-alignment Q of 1.31. Sound on Sound’s review praised its detailed, neutral sound that stays phase-coherent with no appreciable latency.
Cons: A directivity-index standard deviation of 4.90, well above the 3-4 range typical of most monitors this size, reflects the narrow, symmetric horn pattern that Sound on Sound and ASR forum members flagged as double-edged, helpful in some rooms but limiting the sweet spot in others. Predicted in-room smoothness (0.49) is only middling, not matching the excellent on-axis figure. It’s a low-volume Latvian product with no published warranty term found anywhere.
Full Reflector Audio Square Two review and specifications →
| 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) |
| Inputs | Analogue XLR/RCA, AES digital XLR, S/PDIF, TOSLINK optical |
| Max SPL | 118dB @ 1m (EIA-426B, single monitor) |
| Power Output | 250W to woofers, 100W to compression driver (Hypex Class-D) |
| Weight | 42.8 lbs / 19.4 kg (42.8 lbs) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Reflector Audio Square Two vs KEF LSX II LT
- Reflector Audio Square Two vs Edifier S2000MKIII
- Reflector Audio Square Two vs KRK Classic 5
- Reflector Audio Square Two vs IK Multimedia iLoud MTM MKII
- Reflector Audio Square Two vs Edifier R1280DB
- Reflector Audio Square Two vs Kali Audio IN-5
- Reflector Audio Square Two vs Yamaha HS5
- Reflector Audio Square Two vs Adam Audio T5V
- See all 10 comparisons