Short answer: the JBL 308P MKII for better sound quality, the Adam Audio T7V for the lower price. The JBL 308P MKII ranks #24 of 40 powered bookshelf speakers at $498. The Adam Audio T7V ranks #26 at $289.99, $208.01 cheaper.
On the JBL 308P MKII side: CEA2034 spinorama shows an essentially flat on-axis response from 45Hz to above 15kHz, with almost no directivity error. Set against that: A resonance shows up around 18kHz and a slight dip around 1.4kHz.
What the Adam Audio T7V offers: Quite balanced and neutral, very close to the Yamaha HS8. Watch for: On-axis response is a bit wider than ideal for a nearfield monitor, and narrow vertical dispersion means you need to sit at tweeter height to get the intended tonal balance, per Audioholics’ measurements.
Buy the JBL 308P MKII if sound quality matters more than the price. Buy the Adam Audio T7V if the price matters more than sound quality.
Specifications Side By Side
| JBL 308P MKII | Adam Audio T7V | |
|---|---|---|
| Price | $498 | $289.99 |
| Ranked | #24 of 40 in Large Size Powered Bookshelf Speakers | #26 of 40 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 82Hz (measured, Audio Science Review) | approx. 65Hz, extrapolated from the reviewer’s directly-computed -6dB point of 45.4Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 60Hz (measured, Audio Science Review) | approx. 45Hz, extrapolated from the reviewer’s directly-computed -6dB point of 45.4Hz (measured, Audio Science Review) |
| Dimensions | 16.5"H x 10"W x 12.1"D (419.1 x 254 x 307.3 mm) | 13.7"H x 8.3"W x 11.5"D (348 x 210.8 x 292.1 mm) |
| Frequency Response | 45Hz - 20kHz (+/-3dB) (Manufacturer specified) | 39Hz - 25kHz (-6dB) (Manufacturer specified) |
| Weight | not published by manufacturer | 15.7 lbs / 7.1 kg |
| Drivers | 8" woofer, 1" neodymium tweeter | 7" (178mm) woofer |
| App | No | No |
| EQ | No | Yes (Room adjustment) |
| DSP | No | No |
| Output Power | 112W total | 70w Per Speaker |
| Inputs | - | XLR, RCA |
| Bluetooth | - | No |
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The Two Speakers In Full
JBL 308P MKII: $498 Bhphotovideo
Pros: CEA2034 spinorama shows an essentially flat on-axis response from 45Hz to above 15kHz, with almost no directivity error. Dual 56W Class D amps drive an 8” woofer and 1” tweeter with a smooth, imperceptible crossover transition. Excellent value at $498 per pair.
Cons: A resonance shows up around 18kHz and a slight dip around 1.4kHz. An electronic limiter creates measurable anomalies around 96dB, and maximum clean output tops out around 105dB SPL before heavy limiting kicks in. Some audible tweeter hiss at close range.
Full JBL 308P MKII review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 60Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 82Hz (measured, Audio Science Review) |
| DSP | No |
| Dimensions | 16.5"H x 10"W x 12.1"D (419.1 x 254 x 307.3 mm) |
| Drivers | 8" woofer, 1" neodymium tweeter |
| EQ | No |
| Frequency Response | 45Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| Output Power | 112W total |
| Weight | not published by manufacturer |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Adam Audio T7V: $289.99 Amazon
Pros: Quite balanced and neutral, very close to the Yamaha HS8. Deeper bass than the HS8
Cons: On-axis response is a bit wider than ideal for a nearfield monitor, and narrow vertical dispersion means you need to sit at tweeter height to get the intended tonal balance, per Audioholics’ measurements. Frequency response below 1kHz also looks a bit ragged in the digitized ASR analysis - not as smooth out of the box as some rivals, though it’s said to respond well to EQ.
Full Adam Audio T7V review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | approx. 45Hz, extrapolated from the reviewer's directly-computed -6dB point of 45.4Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | approx. 65Hz, extrapolated from the reviewer's directly-computed -6dB point of 45.4Hz (measured, Audio Science Review) |
| Bluetooth | No |
| DSP | No |
| Dimensions | 13.7"H x 8.3"W x 11.5"D (348 x 210.8 x 292.1 mm) |
| Drivers | 7" (178mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 39Hz - 25kHz (-6dB) (Manufacturer specified) |
| Inputs | XLR, RCA |
| Output Power | 70w Per Speaker |
| Weight | 15.7 lbs / 7.1 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements
- Audioholics Review Measurements
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