Seeburg X8 vs JBL SRX835P

Short answer: the Seeburg X8. It ranks #30 of 62 15-inch pa speakers by sound quality, rated 3.5/5, at $2,169; the JBL SRX835P ranks #52, rated 3.0/5, and costs $2,499, so there is little reason to consider the other one.

The Seeburg X8 is the more accurate pick. Bass reaches about 69Hz (-3dB) in vendor Spinorama data, and the coaxial 15-inch design claims 134dB from a 49.6 lbs (22.5 kg) cabinet. Its measured preference score, a predictor of how neutral it sounds, is 3.33 against 2.01 for the JBL SRX835P. The catch: Listening-window narrow-band deviation is 0.571, the worst in this ranking, so the midrange response is noticeably uneven.

The JBL SRX835P is the deeper-bass option. A powered three-way PA speaker from JBL Professional with a 15” woofer, a midrange and a compression driver on a horn, rated at 2,000W. Its bass reaches about 39.6Hz before falling 3dB, against 69Hz for the Seeburg X8. Watch for: Audio Science Review found an uneven response (1.70 average on-axis deviation).

Buy the Seeburg X8. It is rated higher for sound quality than the JBL SRX835P and costs less, so it is the default pick unless a specific strength of the other one matters more to you.

Looking for alternatives? See the complete PA & Live Sound rankings.

Specifications Side By Side

Frequency Response Compared

Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.

Seeburg X8JBL SRX835P

Seeburg X8JBL SRX835P

Measurement data: Seeburg X8 (measured by the manufacturer) and JBL SRX835P (measured by Audio Science Review), via spinorama.org.

Related Speaker Comparisons

How Seeburg X8 compares with other leading options:

• RCF NX 915-A vs Seeburg X8
• Seeburg X8 vs Vue Audiotechnik A-15
• Seeburg X8 vs RCF ART 745-A MK4
• Seeburg X8 vs JBL SRX815P
• JBL SRX815P vs JBL SRX835P

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

Seeburg X8: $2,169.00 Passive Thomann eBay

Same family: the Seeburg X1 (smaller model, rated 3.4/5), the Seeburg X2 (smaller model, rated 3.6/5), the Seeburg X4 (smaller model, rated 3.9/5) and the Seeburg X6 (smaller model, rated 3.9/5).

Pros: Bass reaches about 69Hz (-3dB) in vendor Spinorama data, and the coaxial 15-inch design claims 134dB from a 22.5kg cabinet. Preference scores of 3.33 standalone and 6.14 with an ideal subwoofer come with a coverage pattern that stays consistent around the horn. Measured bass extension of 69Hz (-3dB).

Cons: Listening-window narrow-band deviation is 0.571, the worst in this ranking, so the midrange response is noticeably uneven. It is a passive cabinet that needs an external amplifier and processor, and the price is high next to powered 15-inch alternatives.

Full Seeburg X8 review and specifications →

AES Input	No
Amplifier Power	Passive speaker; requires external amplification within the 600W AES / 1800W peak handling rating
Aux Input	No
Bass Extension (-3dB)	69Hz (measured, vendor Spinorama data)
Bluetooth	No
Coaxial Input	No
Configuration	Passive 2-way coaxial PA speaker
Coverage	80° x 60°
DSP	No (passive)
Dimensions	22.8”H x 17.7”W x 15”D (580 x 450 x 380 mm)
Drivers	15” neodymium woofer, 1.4” neodymium compression driver (coaxial)
Frequency Response	50Hz - 18kHz (-6dB, manufacturer specified)
Guitar Input	No
HDMI Input	No
Maximum SPL	134dB (manufacturer specified)
Microphone Input	No
Optical Input	No
Passive	Yes
Power Handling	600W AES / 1800W peak (manufacturer specified)
RCA Input	No
Rigging	9 x M10 inserts; 35mm pole mount
Spinorama Preference Score	3.33
Spinorama Preference Score with Perfect Sub	6.14
TRS Input	No
USB Input	No
Weight	49.6 lbs (22.5 kg)
XLR Input	No

• Links
  • Seeburg X8 Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • Seeburg X8 vs Vue Audiotechnik A-15
  • Seeburg X8 vs RCF NX 915-A
  • Seeburg X8 vs RCF ART 745-A MK4
  • Seeburg X8 vs JBL SRX815P

JBL SRX835P: $2,499.00 each Amazon eBay

Same family: the JBL SRX812P (smaller model, estimated 3/5) and the JBL SRX815P (smaller model, ranked lower, estimated 3/5).

Pros: A powered three-way PA speaker from JBL Professional with a 15” woofer, a midrange and a compression driver on a horn, rated at 2,000W. Audio Science Review measured a preference score of 2.01 that reaches 3.67 with an ideal subwoofer, with 0.85 listening window deviation. Measured bass extension of 39.6Hz (-3dB).

Cons: Audio Science Review found an uneven response (1.70 average on-axis deviation). Bass reaches 39.6Hz (-3dB) and about 33Hz (-10dB).

Full JBL SRX835P review and specifications →

Released	2015 (11 years ago)
AES Input	No
Amplifier Power	2,000W
Aux Input	No
Bass Extension (-10dB)	about 33.2Hz (measured, Audio Science Review)
Bass Extension (-3dB)	39.6Hz (measured, Audio Science Review)
Bluetooth	No
Coaxial Input	No
DIY Kit	No
Drivers	15” woofer, midrange, compression driver on horn
HDMI Input	No
Maximum SPL	137dB peak (manufacturer specified)
Optical Input	No
Passive	No
RCA Input	No
Rigging	12 x M10 suspension points; 36mm pole socket
Spinorama Preference Score	2.01
Spinorama Preference Score with Perfect Sub	3.67
TRS Input	No
USB Input	No
Weight	85.1 lbs (38.6 kg)
XLR Input	Yes

• Reviews, Comparisons and Sound Samples
  • Audio Science Review Measurements (spinorama.org) More from Audio Science Review →
• Head-to-Head Comparisons
  • JBL SRX835P vs JBL SRX815P
  • JBL SRX835P vs DAS Audio Vantec 15A