Short answer: the JBL 4305P for better sound quality, the Presonus Eris Studio 8 for the lower price. The JBL 4305P ranks #16 of 66 powered bookshelf speakers at $2200. The Presonus Eris Studio 8 ranks #41 at $462, $1738 cheaper.
What the JBL 4305P offers: Erin measured a 45Hz F3 and heard solid 40–50Hz in-room extension—excellent for a compact 5.25-inch active monitor. Tonality is neutral and non-fatiguing, vocal coloration is absent, imaging is precise, and the HDI horn maintains near-constant horizontal directivity above 2kHz. Each speaker is bi-amplified (125W LF + 25W HF), while USB, optical, balanced analog, AirPlay 2, Chromecast, Bluetooth and 24/192 wired interconnect make this an unusually complete system. Grilles caused no meaningful response penalty. Watch for: The limiter becomes conspicuous around 96dB: Erin measured about 8dB lost near 50Hz at the highest drive and achieved roughly 93dB unweighted at 2m in-room, so this is a near/midfield system rather than a high-output theater speaker. A baffle discontinuity produces a 1–2kHz directivity mismatch that cannot be corrected uniformly in the vertical plane; stay within about +/-5° of tweeter height. Soundstage depth and layering trailed the KEF Reference 1 Meta, and wireless speaker linking caps resolution at 24/96.
What the Presonus Eris Studio 8 offers: More natural sounding and less fatiguing than the HS8 Watch for: No detailed measurement caveats are currently recorded.
Buy the JBL 4305P if sound quality matters more than the price. Buy the Presonus Eris Studio 8 if the price matters more than sound quality.
Specifications Side By Side
| JBL 4305P | Presonus Eris Studio 8 | |
|---|---|---|
| Price | $2,200/pair | $462 |
| Ranked | #16 of 66 in Large Size Powered Bookshelf Speakers | #41 of 66 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 40.5Hz (measured, Erin’s Audio Corner) | - |
| Sensitivity | Not applicable (active DSP loudspeaker) | - |
| Maximum Output | ~93dB at 2m in-room before limiting (measured, Erin’s Audio Corner) | - |
| Amplification | 300W system: 125W LF + 25W HF per speaker | - |
| Drivers | 5.25-inch pulp woofer; 1-inch annular compression driver | 8" (203mm) woofer |
| Dimensions | 13.2H x 8.3W x 8.8D inches | 16.5"H x 9.8"W x 11.7"D (419.1 x 248.9 x 297.2 mm) |
| Frequency Response | - | 35Hz - 20kHz (Manufacturer specified) |
| Inputs | - | TRS, XLR, RCA |
| Weight | - | 22.3 lbs / 10.1 kg each |
| App | - | No |
| Bluetooth | - | No |
| EQ | - | Yes (Room adjustment) |
| DSP | - | No |
| Output Power | - | 140w Per Speaker |
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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 4305P: $2,200/pair Amazon JBL eBay
Pros: Erin measured a 45Hz F3 and heard solid 40–50Hz in-room extension—excellent for a compact 5.25-inch active monitor. Tonality is neutral and non-fatiguing, vocal coloration is absent, imaging is precise, and the HDI horn maintains near-constant horizontal directivity above 2kHz. Each speaker is bi-amplified (125W LF + 25W HF), while USB, optical, balanced analog, AirPlay 2, Chromecast, Bluetooth and 24/192 wired interconnect make this an unusually complete system. Grilles caused no meaningful response penalty.
Cons: The limiter becomes conspicuous around 96dB: Erin measured about 8dB lost near 50Hz at the highest drive and achieved roughly 93dB unweighted at 2m in-room, so this is a near/midfield system rather than a high-output theater speaker. A baffle discontinuity produces a 1–2kHz directivity mismatch that cannot be corrected uniformly in the vertical plane; stay within about +/-5° of tweeter height. Soundstage depth and layering trailed the KEF Reference 1 Meta, and wireless speaker linking caps resolution at 24/96.
Full JBL 4305P review and specifications →
| Amplification | 300W system: 125W LF + 25W HF per speaker |
|---|---|
| Bass Extension (-10dB) | 40.5Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 45Hz (measured, Erin's Audio Corner) |
| Dimensions | 13.2H x 8.3W x 8.8D inches |
| Drivers | 5.25-inch pulp woofer; 1-inch annular compression driver |
| Maximum Output | ~93dB at 2m in-room before limiting (measured, Erin's Audio Corner) |
| Sensitivity | Not applicable (active DSP loudspeaker) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Presonus Eris Studio 8: $462 Amazon eBay
Pros: More natural sounding and less fatiguing than the HS8
Full Presonus Eris Studio 8 review and specifications →
| App | No |
|---|---|
| Bluetooth | No |
| DSP | No |
| Dimensions | 16.5"H x 9.8"W x 11.7"D (419.1 x 248.9 x 297.2 mm) |
| Drivers | 8" (203mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 35Hz - 20kHz (Manufacturer specified) |
| Inputs | TRS, XLR, RCA |
| Output Power | 140w Per Speaker |
| Weight | 22.3 lbs / 10.1 kg each |
- Links
- Reviews, Comparisons and Sound Samples
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