---
product_id: 92279283
title: "Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound"
brand: "monoprice"
price: "₨1639"
currency: SCR
in_stock: false
reviews_count: 4
url: https://www.desertcart.sc/products/92279283-monolith-tube-amp-headphone-amplifier-black-with-ess-es9018-sabre
store_origin: SC
region: Seychelles
---

# Impedance Selector 6N5P Tube ESS Sabre DAC Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound

**Brand:** monoprice
**Price:** ₨1639
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate Your Listening Experience with Monolith!

## Quick Answers

- **What is this?** Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound by monoprice
- **How much does it cost?** ₨1639 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/92279283-monolith-tube-amp-headphone-amplifier-black-with-ess-es9018-sabre)

## Best For

- monoprice enthusiasts

## Why This Product

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

## Key Features

- • **Tailored Listening:** Optimize your audio experience with a versatile impedance selector for headphones ranging from 16 to 600 ohms.
- • **Unleash Your Sound:** Experience the rich, warm tones of tube amplification with the Monolith's 6N5P dual triode tube.
- • **Precision Engineering:** Harness the power of the ESS ES9018 Sabre chip for unparalleled digital audio clarity.
- • **Versatile Connectivity:** Connect effortlessly with multiple input options including USB, RCA, and 3.5mm TRS.
- • **Power Meets Performance:** Enjoy a robust audio output with a dedicated preamp feature for external amplification.

## Overview

The Monolith Tube Amp Headphone Amplifier combines advanced tube technology with cutting-edge ESS Sabre DAC architecture, offering a customizable audio experience for headphones of varying impedances. With multiple input options and a focus on sound quality, this amplifier is designed for audiophiles seeking both warmth and precision in their music.

## Description

The Monolith Tube Headphone amplifier brings out the best in your headphones with the rich, warm sound of vacuum tube power. Featuring a powerful 6N5P tube and dual 6N3 tubes, the Monolith Tube Headphone Amplifier will effortlessly drive the most demanding headphones. Upgrade the sound from your computer with the internal 32-bit 384kHz ESS Sabre DAC. Connect your PC or other digital playback device and bring your listening experience to a new level with the ESS Sabre DAC combined with the warm analog sound of vacuum tubes.

## Features

- Tube Sound: The Monolith Headphone Tube Amplifier utilizes a powerful 6N5P dual triode tube coupled with an output transformer for the output stage. Many competing designs only utilize a large electrolytic capacitor on the output, which degrades sound quality. Dual 6N3 tubes are utilized for the input stage and can cross over to US equivalents 2C51 or 396a. The 6N5P crosses over to a US6080 or 6AS7.
- ESS Technology: The ESS ES9018 Sabre chip uses the patented 32-bit Hyper Stream DAC architecture and Time Domain Jitter Eliminator to bring out the best in your digital recordings. The USB receiver is the Navitech SA9227. It supports all sample rates up to 384kHz/32-bit and is clocked by two onboard oscillators.
- Impedance selector: optimize performance for your headphones! The impedance selector allows you to perfectly match the amplifier to the headphone impedance, ensuring that the ideal power is being utilized for any pair of headphones. The impedance can be set to one of five impedance groups, from 16 to 600 ohms
- Volume: sets the volume level for your headphones. | Input: selects the line in1, line in2, or USB inputs. | impedance: match the output impedance to your headphones for optimal sound quality. | headphones: 1/4" Tars output for headphones, compatible from 16 to 600 ohms
- POWER: Powers the amplifier on or off. | LINE IN 1: 3.5mm TRS input for analog audio sources. | LINE 2: Unbalanced stereo RCA inputs for analog sources. | PREOUT: Unbalanced RCA preamplifier outputs that let you utilize the DAC with an external power amplifier. | USB: USB Type-B input connector for connecting your PC or other digital audio source.

## Product Details

- **Item dimensions L x W x H:** 16 x 13.2 x 10 inches
- **Manufacturer:** Monoprice
- **Mounting Type:** Freestanding
- **Brand:** Monoprice
- **Number of Channels:** 1

## Images

![Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound - Image 1](https://m.media-amazon.com/images/I/61VKNbUkYrL.jpg)
![Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound - Image 2](https://m.media-amazon.com/images/I/61LATY2QVUL.jpg)
![Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound - Image 3](https://m.media-amazon.com/images/I/61vlGjFYJwL.jpg)
![Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound - Image 4](https://m.media-amazon.com/images/I/61wuLeE1gEL.jpg)
![Monolith Tube Amp Headphone Amplifier - Black with ESS ES9018 Sabre Chip DAC | Impedance Selector | Tube Sound - Image 5](https://m.media-amazon.com/images/I/51DiNKvrpqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Great full on tube amp for the price
*by C***M on October 15, 2020*

I bought this directly from Monoprice for 199 free ship!Great value for the money, built literally like a tank over 20lbs, plenty of power and the sound, even stock, is very good.Roll some tubes in there and SQ gets even better!Glad I got one.FYI mine has no hum or other extraneous noises from USB or any other input.UPDATEAfter some tube rolling I can say I did get a buzz from some tubes like the beautiful RCA 6AS7G I bought for 35 dollars! And a fabulous Svetlana... Oh well, if you want some advise on this go with a CEI 6080 and the Russian 6N3P tubes.No noise and sound is fantastic! There are many different 6N3P driver tubes out there so do some research, I got mine from fleabay from a guy called tubes_old70 and they are legit. Takes a month to get them but well worth it.This is a powerful amp that with the right tubes preforms exceptionally well.

### ⭐⭐ Great Sound, Engineering and Components. Bad Assembly.
*by T***P on December 28, 2020*

This is an updated review. My first impressions were very good. Seemed built like a tank, heavy (it has 3 transformers inside). The metal knobs and switches are a nice touch, and so is the little screwdriver to open the tube compartment and remove the packing foam that protects the tubes.The sound is clear, with punchy lows, clear highs, and no detectable noise or distortion other than the desirable non-linear artifacts that comprise "tube sound". The honking power tube cranks out 1W per channel, which is in excess of that's needed to drive any headphone. One complaint is something a previous reviewer mentioned, and it is the volume control knob. Only about half the range is useful, as anything above 11:00 is just too loud. Perhaps a pot with a different response (linear perhaps?) would have worked better in this amp.I was re-organizing my desk, and needed to move the amp. When I picked it up from the bottom, I noticed a loose screw. Upon further investigation, I discovered that it was just one of four identical screws arranged in a square, that are very loose and cannot be tightened because they just turn indefinitely. They are pretty hefty so I assume they hold a component of some weight in place. Perhaps a transformer.Really too bad that such as lovely piece of equipment should be marred by sloppy assembly.

### ⭐⭐⭐⭐⭐ This amp competes with, or exceeds amps that cost many many times its price.
*by F***G on April 10, 2020*

OK, so I've had this amp for several months now. I've waited to post a review for quite a while. First off, the bad. The quality control issues with this amp are real. I bought mine on Amazon, and when it arrived there was something heavy clunking around inside the unit and it wouldn't power on. The usb input for the DAC on the back was slanted at a 45 degree angle. Not wanting to deal with an exchange from Amazon, I figured I'd open it up and take a look inside. There is a large, approximately 2lb power transformer mounted directly to the frame over the DAC. When this unit was assembled, I'm assuming that they never tightened the 4 screws that hold the transformer. During shipping, the nuts worked lose, and the transformer dropped on the DAC. The DAC is mounted on thin, stamped steel brackets so the transformer bent the brackets down, hence the angle for the USB input. The transformer had come unplugged when it fell. I remounted the transformer, plugged the connector back in, and straightened the DAC brackets, and hoped for the best and powered it up. After that the amp worked perfectly. Now the good. This amp is sounds amazing. No hum or noise at all unless you are using a source with a cheap power supply, or you have some ground loop issues in your house. It is also the only full tube amplifier that I''m aware of that will drive a full 1W per channel even into low impedance headphones. This amp is seriously built, it has a giant torroidal multi-tap impedance matching transformer in the bottom. The transformer alone has to weigh at least 5 lbs, this is where most of the weight for this amp comes from. The power stage is all very heavy duty, and all the wiring to the tube sockets is heavy, solder joints all looked good, etc. This amp will drive any tubes you throw at to their full potential. It has also paired well with every set of headphones that I've thrown at it without blinking. Anything from 30 ohms to 600. It sounds good with the Chinese tubes out of the box, but I agree with the previous poster that the GE's make a marked difference, and are the best preamp tubes that you can get for this amp without paying more than the amp for tubes. However, I find that the power tube has more of an impact on the sound than anything. I've tried an RCA Octal 6AS7G, a GE O getter, and a GE 5 star 6080 in it so far. My favorite by far is the RCA, it is just a magic combination with the GE pre's. It really tighten up the bass and lowers the bass extension by quite a bit, and also gives it a higher, warmer treble extension. No noise or hum at all, my second favorite tube is the GE 6080 5 star. I didn't care for the O Getter at all, it was much more compressed overall. I actually like the Chinese power tube that it came with better than the O getter. The Chinese tube actually has a nice, wide transparrant top end, it is just a little clipped in the bass region. The DAC in this is fantastic, I actually like it better than the DAC in my LG G8. It is in the same family of Sabre DAC's but it is superior to the DACs in the LG phones, and they are the best in the business. The DAC work perfectly with my phone with an OTG driver, or with my computer with the Savi driver. It is a pretty neutral DAC and is a great pairing for this amp. So, at the end of a long winded review, I would have to say that other than the ridiculous process of having to repair a brand new purchase, this is as close to an end game amplifier that you are going to get without a much more substantial investment then even the full list price of this. And if you want tubes, and the ability to properly drive low impedance phones, it is pretty much the only game in town without going to a hybrid like the Liquid Platinum.

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-20*