Monolith by Monoprice Liquid Spark Headphone Amplifier $74.99 + Free Ship

Monoprice [monoprice.com] - Monolith by Monoprice Liquid Spark Headphone Amplifier by Alex Cavalli $74.99
Apply Code 5MORE - Shipping is Free

Alternatively, Available at Amazon [amazon.com] $74.99

Product Features (details [monoprice.com]):

Dimensions: 4.6" x 3.7" x 1.5" (117 x 94 x 38 mm)
Weight: 9.6 oz. (271g)
Headphone Output: Unbalanced stereo 1/4" TRS jack
Preamp Output: Unbalanced stereo RCA jacks
Signal-to-Noise Ratio: 108dB (ref. 1 Vrms input / 2 Vrms output @ 1kHz)
Crosstalk: –73dB (ref. 1 Vrms input / 2 Vrms output @ 10kHz)
Output Impedance: < 0.1 ohms
Gain: +3dB or +6dB
Input: Unbalanced stereo RCA
Output Protection: Delay and offset protection

Monoprice [monoprice.com] - Monolith by Monoprice Liquid Spark Headphone Amplifier by Alex Cavalli $74.99
Apply Code 5MORE - Shipping is Free

Alternatively, Available at Amazon [amazon.com] $74.99

Product Features (details [monoprice.com]):

Dimensions: 4.6" x 3.7" x 1.5" (117 x 94 x 38 mm)
Weight: 9.6 oz. (271g)
Headphone Output: Unbalanced stereo 1/4" TRS jack
Preamp Output: Unbalanced stereo RCA jacks
Signal-to-Noise Ratio: 108dB (ref. 1 Vrms input / 2 Vrms output @ 1kHz)
Crosstalk: –73dB (ref. 1 Vrms input / 2 Vrms output @ 10kHz)
Output Impedance: < 0.1 ohms
Gain: +3dB or +6dB
Input: Unbalanced stereo RCA
Output Protection: Delay and offset protection

Price Intelligence

Model: Monolith by Monoprice Liquid Spark Headphone Amplifier by Alex Cavalli

Deal History

Sale Price

Slickdeal

$NaN

Today

Post Date	Sold By	Sale Price	Activity
03/01/24	Monoprice	$35	7
02/26/24	Monoprice	$60 frontpage	39
01/01/24	Monoprice	$75	4
08/16/23	Amazon	$55	0
08/06/23	Amazon	$55	2
08/01/23	Monoprice	$55 frontpage	22
03/19/23	Amazon	$52	6
03/15/23	Target	$52 frontpage	47
03/14/23	Monoprice	$61 popular	8
03/03/23	Monoprice	$68 frontpage	64
02/16/23	Monoprice	$75	0
01/17/23	Monoprice	$80 frontpage	56
10/07/22	Monoprice	$85	4
08/26/22	Monoprice	$85	0
08/19/22	Monoprice	$85 frontpage	34
07/11/22	Monoprice	$80	0
07/01/22	Monoprice	$80	18
05/09/22	Monoprice	$80 frontpage	51
11/15/20	Monoprice	$90	2

Current Prices

Sort: Lowest to Highest | Last Updated 7/2/2025, 10:50 PM

Sold By	Sale Price
Amazon	$129.99
Monoprice.com	$129.99

3 Comments

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vid1900

Pro

Feb 23, 2023

1,954 Posts

Joined Sep 2016

Feb 23, 2023

vid1900

Pro

Feb 23, 2023

1,954 Posts

https://www.audiosciencereview.com /forum/index.php?threads/review-and-measurements-of-monoprice-liquid-spark-headphone-amp.5224/

(like always, remove space in above link to see test results)

TLDR : This is an excellent amp for the price.

1

SkillfulSnow8955

Feb 23, 2023

52 Posts

Joined Jul 2019

Feb 23, 2023

SkillfulSnow8955

Feb 23, 2023

52 Posts

Same price at Amazon, but only 19 left

truth.xbl

Feb 23, 2023

515 Posts

Joined Nov 2014

Feb 23, 2023

truth.xbl

Feb 23, 2023

515 Posts

That's a great deal tbh. Plenty of power (about 1.35 watts) for all but the biggest, hungriest planars (and even some of them will be okay). Pairs well with a transparent dac (like the topping d10). No audible difference between this and the JDS Atom to my ear.

2

Monolith by Monoprice Liquid Spark Headphone Amplifier $74.99 + Free Ship

$75

$130

Community Voting