SoundQubed S4-100 S Series 4 Channel Amplifier (175x4)
Key features
- Amplifier channels: 4
- RMS per channel at 4 ohms: 100 W
- RMS per channel at 2 ohms: 175 W
- Amplifier class: D
- Overall dimensions (L × W × H): 7.87 × 7.75 × 2.24 in
- Low-pass filter: 50 Hz–5 kHz
SoundQubed S4-100 S Series 4 Channel Amplifier (175x4) is backordered and will ship as soon as it is back in stock.
SoundQubed S4-100 S Series 4 Channel Amplifier (175x4) is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The SoundQubed S4-100 is a four-channel Class D car amplifier that gives you flexible power for speakers or a mixed front-stage setup. It delivers 100W x 4 at 4Ω, 175W x 4 at 2Ω, or 370W x 2 when bridged at 4Ω, in a compact chassis measuring 7.87" x 7.75" x 2.24".
Key Features & Benefits
- Three power configurations: Choose stereo or bridged operation to suit your speaker setup.
- HPF, LPF, and bandpass filters: Shape the frequency range sent to connected speakers.
- Compact dimensions: The 7.87" x 7.75" x 2.24" chassis helps with space-conscious installation planning.
- Wide input sensitivity range: The 0.2V–8V range supports connection planning with a head unit or DSP.
- Set-screw terminals: The amplifier has 4-gauge power and 10-gauge speaker terminals.
Technical Specifications
| Specification | S4-100 |
|---|---|
| Amplifier Class | Class D |
| Channels | 4 |
| Working Voltage | 12V – 15.8V |
| Maximum Amperage | 75A |
| RMS Power @ 4 Ohm — 4-Channel | 100W x 4 |
| RMS Power @ 2 Ohm — 4-Channel | 175W x 4 |
| RMS Power @ 4 Ohm — Bridged (2-Channel) | 370W x 2 |
| Frequency Response | 10 Hz – 40 kHz |
| Signal to Noise Ratio | >80 dB |
| Damping Factor | >100 |
| Input Sensitivity | 0.2V – 8V |
| High-Pass Filter | 20 Hz – 5 kHz |
| Low-Pass Filter | 50 Hz – 5 kHz |
| Bandpass Filter | Yes |
| Minimum Impedance (Stereo) | 2 Ohm |
| Minimum Impedance (Bridged) | 4 Ohm |
| Power Terminal Size | 4 Gauge (Set Screw) |
| Speaker Terminal Size | 10 Gauge (Set Screw) |
| Overall Length | 7.87" |
| Overall Width | 7.75" |
| Overall Height | 2.24" |
Why Choose This Product?
The S4-100 lets you configure four channels for a front speaker setup, or bridge two channels for a 4Ω load requiring more power. Its filter options provide frequency control at the amplifier, including bandpass filtering for midrange speakers in a three-way component setup.
For a front-stage and subwoofer arrangement, the supplied configuration recommendation is to use channels 1/2 for front component speakers with the high-pass filter, then bridge channels 3/4 for a mid-bass driver or subwoofer with the low-pass filter. A separate SoundQubed S1-850.1 or S1-1250 monoblock is also suggested for a system with dedicated sub-bass.
Installation & Compatibility Notes
Plan your speaker wiring around the amplifier’s minimum impedance ratings: 2 Ohm in stereo mode and 4 Ohm when bridged. Do not bridge the amplifier into a load below 4 Ohm.
The S4-100 operates from 12V–15.8V and has a maximum amperage draw of 75A. Its power terminals accept 4-gauge connections, and its speaker terminals accept 10-gauge connections. Check your system’s electrical and speaker requirements when planning an installation.
Frequently Asked Questions
How much power does the S4-100 provide?
It is rated at 100W x 4 at 4Ω, 175W x 4 at 2Ω, and 370W x 2 bridged at 4Ω.
What is the minimum speaker impedance?
The minimum is 2 Ohm in stereo mode and 4 Ohm in bridged mode. Do not use a bridged load below 4 Ohm.
Can I use the filters for a component speaker setup?
Yes. The S4-100 has high-pass, low-pass, and bandpass filters. The bandpass filter can define the high and low ends of a midrange speaker’s range.
Can it run front speakers and a subwoofer?
The recommended setup uses channels 1/2 for front component speakers and bridged channels 3/4 for a mid-bass driver or subwoofer. The bridged load must be 4 Ohm or higher.
What speaker power ratings are recommended?
The product information recommends component or coaxial speakers rated between 75–175W RMS.
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