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JDS Labs Assembled Objective2 Headphone Amplifier

JDS Labs Assembled Objective2 Headphone Amplifier
alaScore 87

23 reviews

Aug, 2020

alaTest has collected and analyzed 23 reviews of JDS Labs Assembled Objective2 Headphone Amplifier. The average rating for this product is 4.7/5, compared to an average rating of 4.1/5 for other products in the same category for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the JDS Labs Assembled Objective2 Headphone Amplifier is awarded an overall alaScore™ of 87/100 = Very good quality.

Review analysis

(Based on 23 reviews)

User Reviews  


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Showing 1 - 10 of 23 Show Reviews: in English

Consumer review (

A budget-audiophile's delight


Meant to be married to the OL DAC, the O2 headphone amp matches it in shape, size and simplicity. What's neat about the O2 is that JDS Labs allows for some simple customizations—you can choose the headphone jack size (3.5mm or ¼”), input type (RCA or...

Price-to-performance, transparency, custom options

A bit "boring" by nature

Feb, 2017

Consumer review (

Just as described


I read about this device online and the reviews were very positive - so positive that I jumped in. It was my first headphone amp — I purchased my second, the fiio a5, shortly afterwards. Take into consideration I am an amateur audio geek... It is just...

Sounds Great

Not super small

Jan, 2017

Consumer review (

Excellent piece of kit (UK made model)


I bought this to listen to my vinyl on my Hifiman HE-400 phones. It does a great job of driving them with a very neutral and I can hear detail that my £5500 worth of amp and speakers don't pick up. The JDS Labs would cost $191 shipped to the UK. I...

Size, performance, facilities(custom model)

Mar, 2016

Consumer review (

In the amp jungle this little Tarzan holds its own


You know that feeling when you wake up in the morning and you can smell the coffee (Columbian, beautiful like their women), bagels (plain but fresh no manager specials) being toasted and birds singing (bunch of them in perfect harmony). It's the...

value, clarity, small footprint, runs cool, reliable, can drive many headphones

could have more power for harder to drive headphones, could have more modern design, could use few other updates to bring this little Tarzan into 2017

Jan, 2016

Consumer review (

A DIYer's Dream Build (or you can just order an assembled one)


You've already heard that the sound quality of this amp does not match its (low) asking price. You already know that it's one of the best SS desktop headphone amps you can get for your cans at any price point, really. So why am I writing another review...

Ability to build yourself, modification options, case engraving, customer support

Would love for the LED to indicate low battery/charging

Oct, 2015

Consumer review (

Ultra Clarity!


I orderd a JDS Labs fully customized O2 amp from Tokyo. Derivered so quickly and perfectly! JDS Labs O2(1x gain)amp drives my HD800 and T1 perfectly! Very wide soundstage!Very crips and very clear sound! This product is just perfect for me. I highly...

Ultra Clarity and Resolution!


Jul, 2015

Consumer review (

Tecnical perfection at great value


I own the desktop version of the O2. What to say? It is just perfect in every sense. No coloration , no noise, great power, best tecnicalities out there. BEST VALUE EVER. Endgame amp.

(in my case I bought the kit)DIY. Perfect. Just the perfect wire-amp with no coloration or issues.

Jan, 2015

Consumer review (

Objective2 : Wire with Gain


The Objective2 is my first amp along with my beloved HD600 headphones. Here is my review after my experience with it for several months. Intro : I am an 21 year old Engineering student living in a small town in India. There is not much...

Sound Quality, Build Quality, Customization, Value

Portability Issues

Oct, 2014

Consumer review (

Excellent in Price Category and Value


I've been reading so many replies and reviews how the O2, Magni and Vali sound the same. After weeks of listening to all of them, (yes I have them all) they are all not exactly the same . I've been using the same music and all else in the system is the...

Light, Gain Switch, Replaceable Battery

Not Lithium Batteries for More Power or Run Time

Jul, 2014

Consumer review (

Neutral Amp. Great Value.


It lives upto its name. This ne is a gem as far as neutrality is considered most neautral Amp i have had or tried so far. I have tried HiFi man EF5 Fiio E11, E17 ,little dot mk2 etc. and found them clearly sub par comparing the bar this product has...

Flat sound. tight bass.

Charging mechanism is pathetic.

May, 2014

Price comparison for JDS Labs Assembled Objective2 Headphone Amplifier

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