Short answer: the JBL 4305P for better sound quality, the Adam Audio T8V for the lower price. The JBL 4305P ranks #14 of 40 powered bookshelf speakers at $2200. The Adam Audio T8V ranks #25 at $349.99, $1850.01 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. 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.
The case for the Adam Audio T8V: Quite balanced and neutral, very close to the Yamaha HS8. The tradeoff: A crossover-region notch around 4.6kHz where tweeter and woofer interact, and a hole in the vertical response below the tweeter axis - keep the tweeter at or above ear height.
Buy the JBL 4305P if sound quality matters more than the price. Buy the Adam Audio T8V if the price matters more than sound quality.
Specifications Side By Side
| JBL 4305P | Adam Audio T8V | |
|---|---|---|
| Price | $2,200/pair | $349.99 |
| Ranked | #14 of 40 in Large Size Powered Bookshelf Speakers | #25 of 40 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) | 45Hz (measured, Audio Science Review) |
| 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 | 15.8"H x 9.8"W x 13.2"D (401.3 x 248.9 x 335.3 mm) |
| Bass Extension (-10dB) | - | 35Hz (measured, Audio Science Review) |
| Frequency Response | - | 33Hz - 25kHz (-6dB) (Manufacturer specified) |
| Inputs | - | XLR, RCA |
| Weight | - | 21.6 lbs / 9.8 kg |
| App | - | No |
| Bluetooth | - | No |
| EQ | - | Yes (Room adjustment) |
| DSP | - | No |
| Output Power | - | 90w Per Speaker |
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The Two Speakers In Full
JBL 4305P: $2,200/pair Amazon JBL
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 (-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) |
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Adam Audio T8V: $349.99 Amazon
Pros: Quite balanced and neutral, very close to the Yamaha HS8. Deeper bass than the HS8
Cons: A crossover-region notch around 4.6kHz where tweeter and woofer interact, and a hole in the vertical response below the tweeter axis - keep the tweeter at or above ear height. Distortion is well controlled at 86dB SPL but gets messier at 96dB.
Full Adam Audio T8V review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 35Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 45Hz (measured, Audio Science Review) |
| Bluetooth | No |
| DSP | No |
| Dimensions | 15.8"H x 9.8"W x 13.2"D (401.3 x 248.9 x 335.3 mm) |
| Drivers | 8" (203mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 33Hz - 25kHz (-6dB) (Manufacturer specified) |
| Inputs | XLR, RCA |
| Output Power | 90w Per Speaker |
| Weight | 21.6 lbs / 9.8 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons