RTA 15TL vs JBL S310
The S310's sensitivity is 91 dB against the RTA 15TL's 90 dB. Both share impedance (8Ω), woofer (10"), and ways (3).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersFloorstanding SpeakersDiscontinued
Estimated price (community-sourced)
$350
Around — community and catalog average, updates slowly
About the RTA 15TL
The Polk Audio RTA 15TL is a columnar floor-standing loudspeaker system featuring 7 drivers: 2 x 254mm sub bass radiators, 4 x 165mm trilaminate polymer midbass drivers, and 1 x 25mm dome tweeter. It delivers a frequency response from 20Hz to 26kHz, with a sensitivity of 90dB and an impedance of 8 ohms. The speaker is designed to be driven by amplifiers rated between 30 to 250 watts. It measures 1092 x 317 x 394 mm (approximately 43 x 12.5 x 15.5 inches) and weighs about 34.9 kg (over 70 pounds). The RTA 15TL is noted for its large soundstage and powerful stereo performance, making it a sought-after vintage Polk Audio model.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 90 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 20 Hz - 26 kHz
- Power Handling
- 250W
- Min. Amplifier Power
- 30W
- Max. Amplifier Power
- 250W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- dynamic
- Driver Size
- 10"
- Driver Count
- 7
- Enclosure Type
- ported
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 317 × 1092 × 394 mm (W × H × D)
- Weight
- 34.9 kg (77 lbs)
Key Specifications
Sensitivity: 90 dB
Impedance: 8Ω
Frequency: 20-26000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions