SoundQubed S1-850.1 S Series Monoblock Amplifier
Key features
- Amplifier channels: 1
- RMS output at 4 ohms: 375.0 W
- RMS output at 2 ohms: 625 W
- RMS output at 1 ohm: 900 W
SoundQubed S1-850.1 S Series Monoblock Amplifier is backordered and will ship as soon as it is back in stock.
SoundQubed S1-850.1 S Series Monoblock Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Build a compact subwoofer system with the SoundQubed S1-850.1 S Series monoblock amplifier. It delivers 900W RMS at 1 ohm and 14.4V, with a Class D design and a chassis measuring 9.8" x 7.8" x 2.2".
Key Features & Benefits
- Adjustable filters: Set the low-pass filter from 20–200 Hz and the subsonic filter from 10–50 Hz to tune the signal for your setup.
- Clipping indicator: The included bass remote indicates when the amplifier is clipping, helping you set gain with distortion in mind.
- Strappable design: Link two S1-850.1 amplifiers when you want to expand your system.
- Signal input range: Input sensitivity from 0.15V to 5V supports a range of head-unit and DSP output levels.
- Separate terminal sizes: Set-screw 4-gauge power terminals and 10-gauge speaker terminals provide dedicated connection points.
Technical Specifications
| Specification | S1-850.1 |
|---|---|
| Amplifier Class | Class D |
| Channels | 1 |
| Working Voltage | 8.5V – 16V |
| Maximum Amperage | 90A |
| RMS Power @ 4 Ohm (14.4V) | 375W |
| RMS Power @ 2 Ohm (14.4V) | 625W |
| RMS Power @ 1 Ohm (14.4V) | 900W |
| Frequency Response | 10 Hz – 200 Hz |
| Signal to Noise Ratio | >80 dB |
| Damping Factor | >100 |
| Input Sensitivity | 0.15V – 5V |
| Subsonic Filter | 10 Hz – 50 Hz |
| Low-Pass Filter | 20 Hz – 200 Hz |
| Power Terminal Size | 4 Gauge (Set Screw) |
| Speaker Terminal Size | 10 Gauge |
| Clipping Indicator | Yes (on Bass Remote) |
| Strappable | Yes |
| Overall Length | 9.8" |
| Overall Width | 7.8" |
| Overall Height | 2.2" |
The product description also states over 1,000W RMS at 16V. It recommends the S1-850.1 with one or two SoundQubed HDS2.2 subwoofers or one HDS3.1. It describes subwoofers rated between 400–900W RMS as a solid pairing.
Why Choose This Product?
The S1-850.1 combines a compact chassis with adjustable crossover controls and a clipping indicator on its bass remote. Its strappable design also gives you the option to link two units as your system grows.
Installation & Compatibility Notes
The amplifier’s working voltage is 8.5V–16V, and its maximum amperage draw is 90A. Product details describe it as compatible with most stock electrical systems for everyday listening. For maximum output at 16V, they recommend a high-output alternator and upgraded battery.
For most ported builds, the product description suggests setting the low-pass filter between 50–80 Hz and using the subsonic filter below the enclosure’s tuning frequency. Check the final subwoofer load and installation requirements for your system before wiring.
Frequently Asked Questions
How much power does the S1-850.1 provide?
It is rated at 900W RMS at 1 ohm and 14.4V. The specifications also list 625W RMS at 2 ohms and 375W RMS at 4 ohms, both at 14.4V.
Which subwoofers does it pair with?
Product details recommend one or two SoundQubed HDS2.2 subwoofers or a single HDS3.1. They also describe a 400–900W RMS subwoofer as a solid pairing.
Can I strap two S1-850.1 amplifiers?
Yes. The amplifier is listed as strappable, so two units can be linked for increased system output.
Does it include a bass remote?
The product description identifies an included bass remote with a clipping indicator.
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