Short answer: the JBL 4305P. Both are rated 4.4/5 for sound quality (#40 and #45 of 118 powered bookshelf speakers), and the JBL 4305P costs $1,499.99 against $2,799.98 for the ADAM Audio A77H, so with nothing between them on sound quality, price settles it.
What the ADAM Audio A77H does well: Horizontally configured true 3-way studio monitor featuring dual 7-inch MLM woofers, a dedicated 3.5-inch midrange, and a rotatable X-ART tweeter. The catch: Rating estimated based on A-Series sibling measurements.
What the JBL 4305P does well: The measured 1.5dB response span from 300Hz to 5kHz supports even mids, with a 7.45 ideal-subwoofer score and 45.4Hz -3dB bass extension. The catch: Crossover-region directivity changes mean the narrow on-axis span does not describe every listening angle.
Buy the JBL 4305P. Both are rated the same for sound quality, and it costs $1,299.99 less than the ADAM Audio A77H.
About the ratings: the ADAM Audio A77H’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 4.2 to 4.6, so this verdict could change once it is measured.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| ADAM Audio A77H | JBL 4305P | |
|---|---|---|
| Price | $2,799.98 per pair | $1,499.99 per pair |
| Ranked | #45 of 118 in Large Size Powered Bookshelf Speakers Estimated | #40 of 118 in Large Size Powered Bookshelf Speakers |
| Amplifier Power | 270W RMS (200W/55W/15W) | 300W system: 125W LF + 25W HF per speaker |
| Crossover Frequency | 400Hz / 3.0kHz | - |
| Dimensions | 9.3” x 20.9” x 13.8” (236 x 531 x 350 mm) | 13.2H x 8.3W x 8.8D inches |
| Drivers | Rotatable X-ART tweeter in HPS waveguide, 3.5” DCH midrange, two 7” MLM woofers | 5.25-inch pulp woofer; 1-inch annular compression driver |
| Frequency Response | 37Hz - 41kHz (-3dB) | 45Hz - 25kHz (-6dB) (Manufacturer specified) |
| Weight | 37.7 lbs (17.1 kg) each | Primary 14.6 lbs (6.6 kg), Secondary 14.1 lbs (6.4 kg) |
| Bluetooth | No | Yes |
| Bass Extension (-3dB) | - | 45Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | - | 40.5Hz (measured, Erin’s Audio Corner) |
| Maximum SPL | - | ~93dB at 2m in-room before limiting (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | - | 5.44 |
| Spinorama Preference Score with Perfect Sub | - | 7.45 |
| Inputs | - | XLR/TRS combo, 3.5mm Aux, Optical, USB-B, Ethernet |
| XLR Input | - | Yes |
| RCA Input | - | No |
| TRS Input | - | Yes |
| Optical Input | - | Yes |
| Coaxial Input | - | No |
| USB Input | - | Yes |
| HDMI Input | - | No |
| AES Input | - | No |
| Aux Input | - | Yes |
| Bluetooth Version | - | 5.1 |
Related Speaker Comparisons
How JBL 4305P compares with other leading options:
- Genelec 8351B vs JBL 4305P
- Neumann KH420 vs JBL 4305P
- Genelec 8361A vs JBL 4305P
- JBL 4305P vs Genelec 8341A
- Neumann KH 150 vs JBL 4305P
Prices on this page were last checked October 11, 2026 at 4:59 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
ADAM Audio A77H: $2,799.98 per pair Estimated Amazon eBay
Same family: the ADAM Audio A4V (smaller bookshelf, rated 3.6/5), the ADAM Audio A44H (smaller bookshelf, estimated 3.8/5), the ADAM Audio A7V (smaller bookshelf, ranked lower, rated 4/5) and the ADAM Audio A8H (smaller bookshelf, ranked higher, estimated 4.4/5). See every ADAM Audio A Series generation.
Pros: Horizontally configured true 3-way studio monitor featuring dual 7-inch MLM woofers, a dedicated 3.5-inch midrange, and a rotatable X-ART tweeter. Tri-amped with 340W of Class-D/AB amplification and onboard DSP supporting automated room calibration via Ethernet. Dual 7-inch drivers produce massive acoustic power and effortless low-end output down to 37Hz with wide horizontal soundstaging for midfield listening.
Cons: Rating estimated based on A-Series sibling measurements. Wide 531mm horizontal form factor requires a broad mixing console bridge or dedicated horizontal stands; careful acoustic alignment needed in asymmetric control rooms.
Full ADAM Audio A77H review and specifications →
| Released | May 2022 (4 years ago) |
|---|---|
| Amplifier Power | 270W RMS (200W/55W/15W) |
| Bluetooth | No |
| Crossover Frequency | 400Hz / 3.0kHz |
| Dimensions | 9.3” x 20.9” x 13.8” (236 x 531 x 350 mm) |
| Drivers | Rotatable X-ART tweeter in HPS waveguide, 3.5” DCH midrange, two 7” MLM woofers |
| Frequency Response | 37Hz - 41kHz (-3dB) |
| Weight | 37.7 lbs (17.1 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
JBL 4305P: $1,499.99 per pair Amazon JBL eBay
Same family: the JBL 4329P (larger bookshelf, ranked lower, rated 4.1/5).
Pros: The measured 1.5dB response span from 300Hz to 5kHz supports even mids, with a 7.45 ideal-subwoofer score and 45.4Hz -3dB bass extension. Integrated consumer connectivity makes this a more convenient living-room system than many studio monitors. Measured bass extension of 45Hz (-3dB).
Cons: Crossover-region directivity changes mean the narrow on-axis span does not describe every listening angle. Limiting becomes relevant at high output, particularly with bass-heavy music. It suits near- to midfield listening better than the largest high-output systems here. Erin measured about 8dB lost near 50Hz at the highest drive level and reached roughly 93dB unweighted at 2m in-room.
Full JBL 4305P review and specifications →
| Released | 2022 (4 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 300W system: 125W LF + 25W HF per speaker |
| Aux Input | Yes |
| Bass Extension (-10dB) | 40.5Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Version | 5.1 |
| Coaxial Input | No |
| Dimensions | 13.2H x 8.3W x 8.8D inches |
| Drivers | 5.25-inch pulp woofer; 1-inch annular compression driver |
| Frequency Response | 45Hz - 25kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR/TRS combo, 3.5mm Aux, Optical, USB-B, Ethernet |
| Maximum SPL | ~93dB at 2m in-room before limiting (measured, Erin’s Audio Corner) |
| Optical Input | Yes |
| RCA Input | No |
| Spinorama Preference Score | 5.44 |
| Spinorama Preference Score with Perfect Sub | 7.45 |
| TRS Input | Yes |
| USB Input | Yes |
| Weight | Primary 14.6 lbs (6.6 kg), Secondary 14.1 lbs (6.4 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons