Monoprice
Monoprice 133304 Monolith Liquid Spark Headphone Amp
★★★★★
12W
Hear Every Nuance with a Compact Headphone AmplifierThe Monolith Liquid Spark Headphone Amplifier, designed by Alex Cavalli, delivers exceptional sound quality in a compact form factor. With ample power and low distortion, this amplifier is perfect for audiophiles seeking a high-performance liste...
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Overview
Hear Every Nuance with a Compact Headphone Amplifier
The Monolith Liquid Spark Headphone Amplifier, designed by Alex Cavalli, delivers exceptional sound quality in a compact form factor. With ample power and low distortion, this amplifier is perfect for audiophiles seeking a high-performance listening experience.
Specifications
- Brand: Monoprice
- Model: 133304
- Amplifier Type: Headphone Amplifier
- Designer: Alex Cavalli
- Output Power: 1.3 Watts @ 50 Ohms
- THD+N: 0.007% @ 1kHz (1 Vrms), 0.035% @ 1kHz (5 Vrms), 0.065% @ 1kHz (10 Vrms)
- Input: RCA
- Output: 1/4" Headphone Jack
- Preamp Output: RCA (Controlled by Volume Pot)
- Voltage: 18 Volts
- Dimensions: 11.1 x 7.3 x 2.8 inches
- Mounting Type: Freestanding
Key Features
Effortless sound: The design of the spark is a DC coupled topology from input to output, meaning it has no capacitors in the signal path to detract from the sound
Exceptional design: the spark uses laser matched, low noise, audio jfets for its differential input stage and high performance, but very small mosfets for output power leading to super clean Amplification and high power from a small footprint
Clean preamp output: The spark additionally has preamp output RCAs, controlled by the volume pot, for use with powered speakers. An ideal configuration for an entry level desktop set up which performs well above its price point
If you want to be where the music wants you to be the liquid spark will effortlessly put you there at a very affordable price. THD+N (both channels)- 1 Vrms (20mW)- 0.007% THD+N @ 1kHz. 5 Vrms (530mW)- 0.035% THD+N @ 1kHz. 10 Vrms (2.12W)- 0.065% THD @ 1kHz
Buy with confidence: Monoprice not only stands behind every product we sell with a 1 year repair warranty, we offer a 30-day money back guarantee as well
Specifications
Product Type
Headphone Amplifier
Topology
DC coupled (input to output)
Input Stage
Laser matched, low noise, audio JFETs
Output Stage
High performance, small MOSFETs
Preamp Output
RCA (volume controlled)
THD+N (1 Vrms, 20mW)
0.007% @ 1kHz
THD+N (5 Vrms, 530mW)
0.035% @ 1kHz
THD (10 Vrms, 2.12W)
0.065% @ 1kHz
Warranty
1 year repair
Guarantee
30-day money back
Pros & Cons
👍 Pros
- Features a DC coupled topology from input to output, ensuring no capacitors in the signal path for pure sound.
- Utilizes laser matched, low noise, audio JFETs for its differential input stage, contributing to clean amplification.
- Employs high-performance, compact MOSFETs for output power, achieving powerful sound from a small footprint.
- Includes clean preamp output RCAs, controlled by the volume pot, for use with powered speakers.
- Offers a 30-day money-back guarantee, allowing for confident purchase and testing.
- Provides super clean amplification and high power within its small size.
👎 Cons
- The stated THD+N percentages, while low, are given at specific output levels (1 Vrms, 5 Vrms, 10 Vrms) and may vary.
- The design focuses on signal purity by excluding capacitors, which might be a niche preference for some audiophiles.
- The preamp output is specifically for powered speakers, not passive speakers requiring a power amplifier.
- As a headphone amplifier, it is designed for a specific use case and does not include DAC or other audio processing functions.
- "Effortless sound" and "super clean amplification" are subjective qualities without further objective measurements.
Frequently Asked Questions
What is the key characteristic of the Liquid Spark's sound design?
The Liquid Spark features a DC coupled topology from input to output, meaning it has no capacitors in the signal path that could detract from the sound quality.
What components contribute to the Liquid Spark's exceptional design?
It uses laser-matched, low-noise, audio JFETs for its differential input stage and high-performance, small MOSFETs for output power, resulting in clean amplification.
Does this headphone amplifier offer output for powered speakers?
Yes, the Liquid Spark includes clean preamp output RCAs, which are controlled by the volume potentiometer, for use with powered speakers.
What is the Total Harmonic Distortion + Noise (THD+N) at 1 Vrms for both channels?
The THD+N for both channels at 1 Vrms (20mW) is 0.007% @ 1kHz.
What is the Total Harmonic Distortion + Noise (THD+N) at 5 Vrms for both channels?
The THD+N for both channels at 5 Vrms (530mW) is 0.035% @ 1kHz.
What is the Total Harmonic Distortion (THD) at 10 Vrms for both channels?
The THD for both channels at 10 Vrms (2.12W) is 0.065% @ 1kHz.
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