Receive a $10 Best Buy Gift Card Purchase $100 or More From Their Digital Weekly Ad Learn More
Forum Thread

Massdrop Objective 2 (O2) Headphone Amplifier $79.99 (or upgraded version: $94.99) + shipping

$79.99
+5 Deal Score
3,862 Views
This is a highly rated headphone amp (no DAC) which is normally quite a bit more when built by other companies. I highly recommend getting the desktop version for 15$ more (same amp is $167 for the jdslabs built one). Would work great paired with a 6XX (or pretty much any set of headphones).

Baseline Perfect
In 2011, audio engineer and blogger NwAvGuy published a post titled "O2 Headphone Amp." In the blog, he outlined his philosophy on defining sound quality and published his ideal audiophile circuit design. This is the Objective 2, NwAvGuy's most famous headphone amplifier. Capable of powering everything from IEMs to HD800s with linear ease, the O2 is your ideal baseline reference amplifier.

Note: At checkout, you'll have the option to choose between the Standard Edition and the Desktop Edition (+ $15). The Desktop Edition features a quarter-inch headphone output, RCA inputs, and rear mounted power jack. For the Standard and Desktop Editions, you can select either the 110V or 220V AC Adapter, and select the Standard Gain (2.5x Low, 6.5x High) or Medium Gain (1.0x Low, 3.3x High).

Specs
Input: 3.5mm Stereo Connector (Standard Edition), RCA (Desktop Edition)
Output: 3.5 mm (Standard Edition), 6.35mm (Desktop Edition)
Power Battery (not included) or AC Adapter (included, choose 110v or 220v at checkout)
Gain: 2.5x and 6.5x (or 1.0x and 3.3x, select your configuration at checkout)
Volume potentiometer taper: Alps 15A or 3B
Frequency response: +/-0.1 dB (20Hz-20kHz)
THD 1 Khz 150 Ohms: 0.0016%
IMD CCIF 15 Ohms: 0.001%
IMD SMPTE: 0.002%
Noise (ref 400 mV): -105 dB
Max output (33 Ohms): 613 mW
Max output (150 Ohms): 355 mW
Max output (600 Ohms): 88 mW
Output impedance: 0.54 ohms
Crosstalk (15 ohms): -65 dB
Channel Balance (50% volume): 0.6 dB
Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm)
Weight: 9 oz
Included
O2 Headphone Amplifier
110V or 220V AC Adapter

https://www.massdrop.com/buy/mass...-amplifier
Share
Good deal?
You gave rep to cazicthule for this post.
Thank you!
cazicthule posted this deal. Say thanks!
Give Rep Points
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.
Deal
Score
+5
3,862 Views
$79.99

2 Comments

1

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Nov 2016
L2: Beginner
25 Posts
27 Reputation
#2
usually costs more even as a kit https://www.mayflowerelectronics....tive2-kit/ (kit 89$), unless you are going for a bare PCB kit https://www.jdslabs.com/products/...2-diy-kit/ (59$ - kit, no enclosure!)
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Jun 2017
L2: Beginner
62 Posts
10 Reputation
#3
this has ended my friend.
Reply Helpful Comment? 0 0
Page 1 of 1
1
Join the Conversation
Add a Comment
 
Copyright 1999 - 2018. Slickdeals, LLC. All Rights Reserved. Copyright / Infringement Policy  •  Privacy Policy  •  Terms of Service  •  Acceptable Use Policy (Rules)  •  Interest-Based Ads
Link Copied to Clipboard