JBL 705P vs Genelec 8030C

Last updated: August 24, 2026

Short answer: the Genelec 8030C. It ranks #3 of 58 powered bookshelf speakers by sound quality at $1590; the JBL 705P ranks #22 and costs $1998, so there is not much of a tradeoff to weigh.

What the JBL 705P offers: CEA2034 spinorama shows flat response with excellent directivity, similar to its larger 708P sibling. Bi-amplified 500W design (250W woofer, 250W compression driver) into a 5” woofer and JBL’s 2409H compression tweeter. Watch for: A cancellation around 750Hz (likely port-related) and a bit of boosted response at the 1.75kHz crossover show up in the on-axis curve. Sits right around the ear’s most sensitive hearing range near 100Hz, so that region is partially audible even at modest levels.

What the Genelec 8030C offers: CEA2034 spinorama shows a near-flat on-axis response with smooth directivity - “very nice overall.” Predicted in-room response is excellent aside from one minor dip. Reasonably wide horizontal beamwidth of about ±60 degrees that doesn’t narrow even above 10kHz. At 106dB SPL/1m, bass distortion measures much lower than a comparable passive speaker-plus-amplifier combination (Revel M106) tested the same way. Compression is purely instantaneous/amplitude-related rather than thermal, with max SPL before compression reaching 111dB SPL at 200Hz (96dB plus 15dB of headroom). The reviewer found it immediately musical, with reference tracks “translating” beautifully out of the box, and EQ correction of its one measured flaw improved detail with no downsides. Overall conclusion: excellent value, a rare combination of measured accuracy and genuinely engaging sound. Watch for: A minor but measurable dip between 2-3kHz shows up in both on- and off-axis measurements. Vertical directivity varies significantly with frequency, so listening height needs to stay right at the tweeter/ear axis for accurate tonal balance. Distortion at 106dB SPL/1m is elevated in the 500Hz-2kHz range compared to the Revel M106 comparison, even though bass distortion is much better. Compression headroom drops substantially at low frequencies - only about 105dB SPL max at 50Hz (a 0.5dB compression point) versus 111dB SPL at 200Hz, roughly a 6dB difference. As a near-field monitor, it has genuinely limited headroom in the deep bass - the reviewer noted severe distortion on deep-bass-heavy tracks at anything beyond modest listening levels.

Buy the Genelec 8030C. It ranks higher for sound quality than the JBL 705P and costs less, so there is no real case for the other one.

JBL 705P vs Genelec 8030C

Specifications Side By Side

JBL 705P Genelec 8030C
Price$1998$1590
Ranked#22 of 58 in Medium Size Powered Bookshelf Speakers#3 of 58 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)80Hz (measured, Audio Science Review)59Hz (measured, Audio Science Review)
Bass Extension (-10dB)62Hz (measured, Audio Science Review)47Hz (measured, Audio Science Review)
Dimensions10.6"H x 5.9"W x 10.8"D (268 x 151 x 274 mm)11.7"H x 7.4"W x 7"D (297.2 x 188 x 177.8 mm)
Frequency Response39Hz - 36kHz (Manufacturer specified)54Hz - 20kHz (±2.5dB) (Manufacturer specified)
Weight12.6 lbs / 5.7 kg each11 lbs / 5 kg each
Drivers5" woofer, 2409H 1" compression driver5.1" woofer, 0.75" metal dome tweeter
AppNoNo
EQNoYes (Bass tilt, treble tilt, room response)
DSPNo-
Output Power500W total (250W woofer, 250W tweeter)100W (50W woofer + 50W tweeter)
Inputs-XLR
Bluetooth-No
Max SPL-110dB @ 1m

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The Two Speakers In Full

JBL 705P: $1998 Bhphotovideo eBay

JBL 705P ranking card

Pros: CEA2034 spinorama shows flat response with excellent directivity, similar to its larger 708P sibling. Bi-amplified 500W design (250W woofer, 250W compression driver) into a 5” woofer and JBL’s 2409H compression tweeter.

Cons: A cancellation around 750Hz (likely port-related) and a bit of boosted response at the 1.75kHz crossover show up in the on-axis curve. Sits right around the ear’s most sensitive hearing range near 100Hz, so that region is partially audible even at modest levels.

AppNo
Bass Extension (-10dB)62Hz (measured, Audio Science Review)
Bass Extension (-3dB)80Hz (measured, Audio Science Review)
DSPNo
Dimensions10.6"H x 5.9"W x 10.8"D (268 x 151 x 274 mm)
Drivers5" woofer, 2409H 1" compression driver
EQNo
Frequency Response39Hz - 36kHz (Manufacturer specified)
Output Power500W total (250W woofer, 250W tweeter)
Weight12.6 lbs / 5.7 kg each

Genelec 8030C: $1590 Bhphotovideo eBay

Genelec 8030C ranking card

Pros: CEA2034 spinorama shows a near-flat on-axis response with smooth directivity - “very nice overall.” Predicted in-room response is excellent aside from one minor dip. Reasonably wide horizontal beamwidth of about ±60 degrees that doesn’t narrow even above 10kHz. At 106dB SPL/1m, bass distortion measures much lower than a comparable passive speaker-plus-amplifier combination (Revel M106) tested the same way. Compression is purely instantaneous/amplitude-related rather than thermal, with max SPL before compression reaching 111dB SPL at 200Hz (96dB plus 15dB of headroom). The reviewer found it immediately musical, with reference tracks “translating” beautifully out of the box, and EQ correction of its one measured flaw improved detail with no downsides. Overall conclusion: excellent value, a rare combination of measured accuracy and genuinely engaging sound.

Cons: A minor but measurable dip between 2-3kHz shows up in both on- and off-axis measurements. Vertical directivity varies significantly with frequency, so listening height needs to stay right at the tweeter/ear axis for accurate tonal balance. Distortion at 106dB SPL/1m is elevated in the 500Hz-2kHz range compared to the Revel M106 comparison, even though bass distortion is much better. Compression headroom drops substantially at low frequencies - only about 105dB SPL max at 50Hz (a 0.5dB compression point) versus 111dB SPL at 200Hz, roughly a 6dB difference. As a near-field monitor, it has genuinely limited headroom in the deep bass - the reviewer noted severe distortion on deep-bass-heavy tracks at anything beyond modest listening levels.

AppNo
Bass Extension (-10dB)47Hz (measured, Audio Science Review)
Bass Extension (-3dB)59Hz (measured, Audio Science Review)
BluetoothNo
Dimensions11.7"H x 7.4"W x 7"D (297.2 x 188 x 177.8 mm)
Drivers5.1" woofer, 0.75" metal dome tweeter
EQYes (Bass tilt, treble tilt, room response)
Frequency Response54Hz - 20kHz (±2.5dB) (Manufacturer specified)
InputsXLR
Max SPL110dB @ 1m
Output Power100W (50W woofer + 50W tweeter)
Weight11 lbs / 5 kg each