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SVS SoundPath Speaker Level Subwoofer Adapter

BH #SVSPSUBADPT • MFR #SPSUBADPT
2 reviews
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SVS SoundPath Speaker Level Subwoofer Adapter
Key Features
  • Add Powered Sub to Legacy Systems
  • For Amp/Receiver Without Subwoofer Out
  • For Amp/Receiver Without Line Level Out
  • Steps Down Voltage to Retain Fidelity
Add a powered subwoofer to your legacy system with this SoundPath Speaker Level Subwoofer Adapter from SVS. By stepping down the speaker-level voltage to RCA line-level, you can use this adapter to connect a powered subwoofer to your legacy system without any loss of fidelity. It's ideal for any integrated amplifier or stereo receive that does not have line level or dedicated subwoofer outputs. Hookup is as easy as plugging in amp/receiver cabling into the dual gold-plated binding post inputs, and your subwoofer cabling to the RCA output.
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SVS SPSUBADPT Overview

Add a powered subwoofer to your legacy system with this SoundPath Speaker Level Subwoofer Adapter from SVS. By stepping down the speaker-level voltage to RCA line-level, you can use this adapter to connect a powered subwoofer to your legacy system without any loss of fidelity. It's ideal for any integrated amplifier or stereo receive that does not have line level or dedicated subwoofer outputs. Hookup is as easy as plugging in amp/receiver cabling into the dual gold-plated binding post inputs, and your subwoofer cabling to the RCA output.

Premium Design
To support high current and power handling, SVS utilizes narrow-tolerance resistors and wide-trace PCBs in the adapter. This equates to a wide bandwidth with ultra-low distortion and pinpoint accuracy. The adapter will also ensure the signal is safe for the subwoofer inputs with -30 dBV attenuation, which does not draw any power from a loudspeaker amplifier.
UPC: 850029050926

SVS SPSUBADPT Specs

General
Compatibility
Not Specified by Manufacturer
Audio
Speaker-Level Input Impedance: 4.85 kOhm
Line-Level Output Impedance: 150 Ohm
Voltage Attenuation: -30 dBV
Power Handling: 500 W (RMS) / 1,000 W (Peak)
Frequency Response: 10 Hz to 80 kHz (+/- 0.01 dB)
THD+N @ 10V: <0.03% (10 Hz to 80 kHz)
Inputs/Outputs
Connector 1
2x 5-Way Binding Posts Female
Connector 2
1x RCA Female
Physical
Color
Black
Cable Length
Not Specified by Manufacturer
Dimensions
4.1 x 3.9 x 1.5" / 103 x 99 x 37 mm
Weight
9.88 oz / 0.28 kg
Packaging Info
Package Weight
0.91 lb
Box Dimensions (LxWxH)
6.3 x 5.8 x 2.3"

SVS SPSUBADPT Reviews

Works great!

By Stephen
Rated 5 out of 5
Date: 2026-01-06

I used the SoundPath Speaker Level Subwoofer Adapter to connect an older stereo receiver to a power amp.The receiver did not have pre outs to connect to the amp so i connected this to the speaker outputs and connected the rca jacks on the SoundPath Speaker Level Subwoofer Adapter to the power amp. It converted the volume level to a line level that is still controlled by the volume knob on the receiver.Works great and is simple to install. Exactly what i needed.

Solid device

By David
Rated 5 out of 5
Date: 2025-10-16

I purchased a Klipsch subwoofer to go with my book shelf Klipsch so that I could get the bass response that I needed. I connected the subwoofer to the line out of my receiver but realized that the volume control did not effect the line out. So I needed to take the B speaker output to the subwoofer and this device did exactly what I needed.

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