---
product_id: 470474108
title: "SYS Passive Preamp Volume Control and 2-Input Switch (Black)"
brand: "schiit"
price: "S$110"
currency: SGD
in_stock: true
reviews_count: 8
category: "Schiit"
url: https://www.desertcart.sg/products/470474108-sys-passive-preamp-volume-control-and-2-input-switch-black
store_origin: SG
region: Singapore
---

# 2-input switch passive volume control USA made SYS Passive Preamp Volume Control and 2-Input Switch (Black)

**Brand:** schiit
**Price:** S$110
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Audio Game!

## Quick Answers

- **What is this?** SYS Passive Preamp Volume Control and 2-Input Switch (Black) by schiit
- **How much does it cost?** S$110 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/470474108-sys-passive-preamp-volume-control-and-2-input-switch-black)

## Best For

- schiit enthusiasts

## Why This Product

- Trusted schiit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Design:** Simple 2-way switch and volume knob for effortless operation.
- • **Pure Sound Experience:** Enjoy distortion-free audio with complete volume control.
- • **Versatile Compatibility:** Works with virtually any line-level source for ultimate flexibility.
- • **Seamless Source Switching:** Easily toggle between two audio sources without hassle.
- • **High-Quality Craftsmanship:** Proudly designed and assembled in the USA with premium components.

## Overview

The Schiit SYS Passive Preamp Volume Control and 2-Input Switch is a high-quality audio solution that allows users to effortlessly switch between two line-level sources while maintaining pristine sound quality. Designed and assembled in the USA, this device features a straightforward design with a volume knob and a 2-way switch, making it the perfect addition for audiophiles seeking simplicity and performance.

## Description

Sys is a simple, 2-input passive preamp. No electronics. No power. No distortion. Just a 2-way switch and a potentiometer.Huh? Why would you want such a thing? Well, if you've ever wanted to use one of our DACs with powered monitors, Sys puts the volume control right at hand. Same goes for using two sources with one of our headphone amps—use Sys to switch between a DAC and a phono preamp, for example. And, you don't have to use Sys with our gear at all. It's a simple, high-quality, passive preamp that works with pretty much any line-level source.Designed and Assembled in USA By “designed and assembled in USA" this is what we mean: the vast majority of the total production cost of SYS—chassis, boards, assembly, etc—goes to US companies manufacturing in the US. Our chassis are made minutes from our facility. Our PCBs are done just over the hill from us, or done in NorCal. You get the picture.2-Year Warranty SYS is covered by a limited warranty that covers parts and labor for two years. That’s 2x the warranty of most of the products in this price range.

Review: High quality product that solved my predicament. - The SYS is a simple passive preamp, but you already know that I assume because it's in the title and that's what you need, otherwise you wouldn't be reading about it. I needed something that could simply control the volume of my desktop audio speakers at work. Having recently purchased a Schiit Mjolnir original version to handle headphone amplification, I needed something to control the volume of my powered speakers because the Mjolnir is for balanced components only (tech support at Schiit said that XLR to RCA adapters would trip the internal protection circuit of the amp). This little beauty sits between the single ended outputs of my DAC and the subwoofer input of my desktop speakers, which then connect to the desktop satellites. The build quality is wonderful and it makes you wonder how they make any money selling it for so little based on the cabinet quality alone. Even if you could DIY a potentiometer or attenuator, source a simple circuit board, pick up a couple of knobs and three sets of RCAs, you couldn't get the cabinet nearly this nice to mount them for what would be left over. The fact that it is passive means no extra power cord to clutter the space and plug in to the power strip on the floor. So what does it do to the sound? Exactly nothing. Well actually less than nothing. It takes the high output voltage from the DAC and reduces it so the speakers can play at a normal volume. It also lets you choose between two sources so it's not just a volume control. That's what preamps are suppose to do aren't they? They allow one to select sources and control volume. So seriously, how does it sound? Fine. I mean I'm using it with a $200 pair of desktop speakers, hardly the instruments needed for critical component evaluation. I could take it home to see how it sounds in place of my 4 digit tube preamp I suppose, but why would I bother. Of course I have other options for controlling volume of music. The satellites themselves have a volume control, but they don't control the sub level and require me to fondle the back of the cabinet to locate the knob. Then I would have to reach down to find the correct knob on the sub to change its volume. That is a no go as it is very inconvenient and I would rather just set it and forget it on the speakers. Then of course I could use the computer to control volume. The problem there is that I never seem to be in the right window or app when I need it. Yeah I know one of the function keys will do it too, but I would rather reach up, twist a knob and go on about my business without having to think about it. And, God forbid I would need to mute the music quickly and end up pressing the wrong key. I'm not even going to mention non-variable output sources like a CD player, etc. nor will I address the whole issue of shaving digital bits by using the computer's digital volume control in this application. Bottom line, this is a great and cheap product that adds the convenience I wanted, sounds just fine and looks great on my desk without taking up much valuable real estate. This Schiit really doesn't stink!
Review: Very good piece of schitt. - I stumbled upon the sys when I was browsing schitt's website and found this little guy. I knew schitt was well respected in the headphone community but I didn't know they made other things too. I was always curious of trying a passive volume controller with my Harman Kardon hk770 dual-mono power amp but ones I found online were ridiculous prices. Then I found this piece of schitt haha. For 59 bucks this is a killer deal. Very well made, looks simple and nice and does its job. Can't really complain. I have it hooked up to my Harman Kardon hk770 dual-mono power amp and my source is my computer hooked using firewire to my echo audiofire 2 interface@4+dbu gain and sounds really, really good. Sounds more clean and straight forward to the signal. While this thing is amazing I have to mention this thing is actually not an actual "preamp"(cause It does no extra amplification to the signal)so if plan on using vinyl you will need an actual active preamp with a phono stage or separate pre phono stage. Other then that you'll be fine. Most digital sources will have enough voltage just about to drive most power amps well. Only digital sources that might struggle definitely driving your power amps would be mp3 players or ipods and so forth if you plan on using this for your power amps like me. Well, it does its job and I don't see myself ever going back to using active preamp. For the price this is a killer deal.

## Features

- It's a 2-input passive preamp that adds no distortion, and gives you complete volume control.
- Works with pretty much any line-level source.
- It's just a 2-way switch and a volume knob. That's all.
- Designed and assembled in the USA from high quality components.
- For those times when you want to switch sources without unhooking one and rehooking up another. Hook them both up to SYS and have full control over which one you're listening to and at what volume.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BCMKH2ZT |
| Amplifier Type | Passive |
| Best Sellers Rank | #17,789 in Electronics ( See Top 100 in Electronics ) #8 in Audio Component Preamplifiers |
| Brand | Schiit |
| Built-In Media | SYS |
| Color | Black |
| Compatible Devices | Monitors |
| Connector Type | RCA |
| Customer Reviews | 4.7 out of 5 stars 355 Reviews |
| Enclosure Material | Metal |
| Manufacturer | Schiit |
| Material | Metal |
| Mfr Part Number | SCH-13B-FA |
| Model Name | SYS |
| Output Channel Quantity | 2 |
| Power Source | No power required |
| Unit Count | 1 Count |
| Warranty Description | 2 Year Manufacturer |

## Product Details

- **Brand:** Schiit
- **Color:** Black
- **Compatible Devices:** Monitors
- **Material:** Metal
- **Model Name:** SYS

## Images

![SYS Passive Preamp Volume Control and 2-Input Switch (Black) - Image 1](https://m.media-amazon.com/images/I/81HHvGN+ppL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Does the loudness decrease evenly (log taper) or does it stay flat for most of the range and then abruptly go soft at the low end?**
A: No abrupt volume change.

**Q: will this up the line level from my cell phone to my home amps RCA input to play thru my stereo speakers?**
A: Nope, it’s a complete straight pass through, zero power. I love mine, although I do wish the volume knob was a bit larger.

**Q: I have the output in mill-volts range, and want it to upped to line level which can be fed to the amp. Can this act as phono amp?**
A: Of course not

**Q: will the switch degrade the sonic?  I'm using 10AWG speaker wire, and etc.  will this be the weakest section of my audiophile system?**
A: I have huge gear hanging off of this (sunfire) and cannot tell any difference between channels when switching.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality product that solved my predicament.
*by S***N on January 26, 2016*

The SYS is a simple passive preamp, but you already know that I assume because it's in the title and that's what you need, otherwise you wouldn't be reading about it. I needed something that could simply control the volume of my desktop audio speakers at work. Having recently purchased a Schiit Mjolnir original version to handle headphone amplification, I needed something to control the volume of my powered speakers because the Mjolnir is for balanced components only (tech support at Schiit said that XLR to RCA adapters would trip the internal protection circuit of the amp). This little beauty sits between the single ended outputs of my DAC and the subwoofer input of my desktop speakers, which then connect to the desktop satellites. The build quality is wonderful and it makes you wonder how they make any money selling it for so little based on the cabinet quality alone. Even if you could DIY a potentiometer or attenuator, source a simple circuit board, pick up a couple of knobs and three sets of RCAs, you couldn't get the cabinet nearly this nice to mount them for what would be left over. The fact that it is passive means no extra power cord to clutter the space and plug in to the power strip on the floor. So what does it do to the sound? Exactly nothing. Well actually less than nothing. It takes the high output voltage from the DAC and reduces it so the speakers can play at a normal volume. It also lets you choose between two sources so it's not just a volume control. That's what preamps are suppose to do aren't they? They allow one to select sources and control volume. So seriously, how does it sound? Fine. I mean I'm using it with a $200 pair of desktop speakers, hardly the instruments needed for critical component evaluation. I could take it home to see how it sounds in place of my 4 digit tube preamp I suppose, but why would I bother. Of course I have other options for controlling volume of music. The satellites themselves have a volume control, but they don't control the sub level and require me to fondle the back of the cabinet to locate the knob. Then I would have to reach down to find the correct knob on the sub to change its volume. That is a no go as it is very inconvenient and I would rather just set it and forget it on the speakers. Then of course I could use the computer to control volume. The problem there is that I never seem to be in the right window or app when I need it. Yeah I know one of the function keys will do it too, but I would rather reach up, twist a knob and go on about my business without having to think about it. And, God forbid I would need to mute the music quickly and end up pressing the wrong key. I'm not even going to mention non-variable output sources like a CD player, etc. nor will I address the whole issue of shaving digital bits by using the computer's digital volume control in this application. Bottom line, this is a great and cheap product that adds the convenience I wanted, sounds just fine and looks great on my desk without taking up much valuable real estate. This Schiit really doesn't stink!

### ⭐⭐⭐⭐⭐ Very good piece of schitt.
*by ~***~ on November 15, 2014*

I stumbled upon the sys when I was browsing schitt's website and found this little guy. I knew schitt was well respected in the headphone community but I didn't know they made other things too. I was always curious of trying a passive volume controller with my Harman Kardon hk770 dual-mono power amp but ones I found online were ridiculous prices. Then I found this piece of schitt haha. For 59 bucks this is a killer deal. Very well made, looks simple and nice and does its job. Can't really complain. I have it hooked up to my Harman Kardon hk770 dual-mono power amp and my source is my computer hooked using firewire to my echo audiofire 2 interface@4+dbu gain and sounds really, really good. Sounds more clean and straight forward to the signal. While this thing is amazing I have to mention this thing is actually not an actual "preamp"(cause It does no extra amplification to the signal)so if plan on using vinyl you will need an actual active preamp with a phono stage or separate pre phono stage. Other then that you'll be fine. Most digital sources will have enough voltage just about to drive most power amps well. Only digital sources that might struggle definitely driving your power amps would be mp3 players or ipods and so forth if you plan on using this for your power amps like me. Well, it does its job and I don't see myself ever going back to using active preamp. For the price this is a killer deal.

### ⭐⭐⭐⭐⭐ Replaced my preamplifier
*by G***N on March 31, 2015*

First: This feels like quality. All-metal, solid, stays put on its little rubber feet when one manipulates the controls. Nothing cheap-feeling about it. The volume control turns smoothly through its range, offering fine control, and the input selector button works fine. (It works gently: if didn't, your finger would push this small unit around on the table.) Second: I ordered this because the volume control on my 3-tube Transcendent pre-amp was getting fritzy at low volumes, and thought I would overcome that by putting variable resistor between preamp and power amp (a Hafler 110). But I noticed online remarks to the effect that some digital devices put out such strong signal that you really can use a passive attenuator as a "pre-amp." (No real need for scare quotes on "pre-amp," since attenuation IS amplification -- by negative dB.) Short form -- it works. This little $60 gizmotron replaces my $550 preamplifier. I feed the signal from my Cambridge Audio Sonata NP3 digital player through the SYS to the power amp. Result: sound, glorious sound, with all the oomph I could desire. I was essentially using my preamplifier for years as a fancy, power-sucking attenuator, though a nice one, and didn't know it. Now the signal path is simpler, the sound is stunningly pure, and my system has stopped sucking unnecessary electricity . . . what's not to love? Probably for some other signal sources and power amps, and certainly for handling a phonograph input, one will still need a powered preamp.

## Frequently Bought Together

- Schiit SYS Passive Preamp Volume Control and 2-Input Switch (Black)
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black
- CESS-163-4i Low Noise 12 Gauge Premium RCA Audio Line Patch Cable (4 Inches)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/470474108-sys-passive-preamp-volume-control-and-2-input-switch-black](https://www.desertcart.sg/products/470474108-sys-passive-preamp-volume-control-and-2-input-switch-black)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-04-24*