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Aurisonics ASG-2.5 Review
May 25, 2015
Luckbad
3
Bring on the thunder and lightning.
Aurisonics’ flagship triple driver hybrid combines the incredible sub­bass of the ASG­B’s 14.2mm dynamic driver (plus a tuneable bass port) with two balanced armature
tweeters for a unique earphone experience.
Aurisonics ASG-2.5 Features
Triple Driver: Hybrid combination of 14.2mm Precision Dynamic Driver with custom tuned next generation tweeters.
Tuneable Bass Port: Tune the bass for precise, mechanical tuning of low­mid bass frequencies.
3D printed, Digital Hybrid Technology (DHT)™ shell: Fits 95% of ears like a custom (Hybrid custom/universal fit derived from thousands of ears scanned…).
Born in Music City: Hand­crafted with pride in the heart of Music City, Nashville, TN.
Color Options: Available in Polished Black, Polished Red, Brushed Nickel, and 24k Gold.
Custom: The AS­2.5 is the custom version of the ASG­2.5, adds an Ambient Port option for pass­through sound, and has additional color options.
Aurisonics ASG-2.5 In the Box
ASG­2.5 earpieces
Detachable silver­plated low oxygen copper cable (92 Pin Style connector)
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Shock/Dust/Waterproof hard case
SureSeal™ tips
Cleaning brush
Valve adjustment tool
Aurisonics ASG-2.5 Impressions
If I were to have one complaint about the Aurisonics ASG­B I reviewed a couple weeks ago, it’s that they lacked clarity and no amount of EQ would be able to get you
perfect, sparkling highs. The ASG­2.5, however, includes two balanced armature tweeters in addition to the 14.2mm dynamic driver it uses to produce its incredible bass
response. Clarity and detail are excellent, and the tuneable bass port (which, being a basshead, I have fully open) is a welcome addition for those of you who aren’t as
into bass as I am.
The ASG­2.5 floats effortlessly between rap, EDM, classical, rock, blues, and every other genre I’ve thrown at them. These are some of the most versatile IEMs I’ve used–
as well as some of the most expensive. With their versatility, however, these approach real affordability since I have half a dozen other earphones that serve a more
specific genre well (e.g. I use the JVC HA­FXZ200 almost exclusively for bass­heavy but subued electronic music and Pioneer SE­CX8s for hard­hitting rap and EDM).
The ASG­2.5 can do virtually anything you want them to.
I rarely talk about audiophile terminology like soundstage, but I have to betray my standard for simplicity by commenting on it with these earphones. The soundstage is out
of this world. Listening to a track like Chesky Records’ Jesu, Joy of Man’s Desiring is almost transcendental in its delivery and staging. While I usually drop some of the
mid­bass and low­mids to lay the sound back a bit, I actually like to remove my equalizer from the equation entirely listening to the Chesky tracks.
To speak only of the basshead potential of this earphone, it is second to none in its bass depth and ability to cause your chest to rumble and breath to catch. It is only
equaled by its bass­player­centric sibling, the ASG­B. Coupled with the ASG­2.5’s ability to shine with nearly all music genres, this could be the end­game basshead IEM
for many. It lacks only in bass punch and impact when compared to the Pioneer SE­CX8/SE­CX9, and those only achieve their mind­blowing levels of impact with a
proprietary Bass Exciter, so it really isn’t a flaw of the ASG­2.5 to have less raw impact.
If any other company boasts that it has the end­game IEM for bassheads that can challenge the ASG­2.5, I welcome the opportunity to review them (Lear, 1964 Ears, AAW,
Tracluent, Sony, JVC, errybody else, I’m lookin’ at you).
No earphone is perfect, so let’s talk about a few of the things I’d criticize.
The mid­bass is a bit bloated and clouds the mids with the bass port fully open. I prefer to have it cut off by ~150Hz for the ultimate basshead experience, so I use EQ to
drop the mid­bass and low­mids a bit (see the frequency response graph to see where it’s a bit high).
CAUTION: Don’t use the case they send you. The case that comes with this flagship IEM is inexcusably small. If used, it can actually damage the casing of the earphones.
They sent me an extra clamshell case, and I expect Aurisonics to replace the included case in the future (they’ve commented as such, which is great that they’ve listened
to customer feedback).
If you are looking at IEMs in this price category, you definitely have a good amp to complement them, right? If you don’t, you shouldn’t consider an earphone at this level
until you have a good DAC and Amp to drive them. The ASG­2.5 needs a good amp to sound great, so don’t try driving them directly from your phone or you’re doing these
beauties an injustice.
Others often criticize the SureSeal tips as being hard to find a proper seal. I liked them for the ASG­B, but curiously agreed with others for the ASG­2.5 and used double­
flange tips instead.
Conclusion: The Aurisonics ASG­2.5 is my current top pick overall for a basshead IEM. It has matchless sub­bass depth, solid impact, and manages to give you the best of
both worlds with its dynamic driver providing deep bass and 2x balanced armature tweeters delivering crystal clarity.
Aurisonics ASG-2.5 Frequency Response Graph
This curve was generated using a Dayton Audio EMM­6 Electret Measurement Microphone, Focusrite Scarlett 2i4 audio interface, and Room EQ Wizard. The mic
calibration file was provided by Dayton Audio and the output calibration file was generated using the program itself (3.5mm out on PC to 1/4″ input on Scarlett 2i4).
Frequency Response Graph for ASG­2.5 (Bass Fully Open and Bass Fully Closed) and ASG­B
ASG­2.5 Bass Port Fully Open = Red
ASG­2.5 Bass Port Fully Closed = Green
ASG­B = Blue
Quick Notes
ASG­2.5 Bass Port Fully Open (Red) and ASG­B (Blue) are virtually identical up to ~700Hz.
ASG­2.5 Bass Port Fully Open (Red0 and ASG­2.5 Bass Port Fully Closed (Green) become identical after ~1500Hz.
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Aurisonics ASG-2.5 Specifications
Driver: Precision Dynamic 14.2mm + 2 custom­tuned, next generation tweeters
Frequency response: 8Hz – 25kHz
Impedance: 41 ohm +/­ 10% @ 1kHz
Sensitivity: 123dB @1mW
Passive noise attenuation: NRR 22db
Construction: 3D printed, Digital Hybrid Technology (DHT)™ shell fits 95% of ears like a custom (Hybrid custom/universal fit).
Cable: Detachable silver­plated low oxygen copper cable
Colors: Polished Red, Polished Black, Brushed Nickel, 24k Gold
Warranty: 1­year
Aurisonics ASG-2.5
$699.00–$1,099.00
PROS
­ Thunderous bass depth
­ Bass complemented by clarity of 2 BA tweeters
­ Doesn't need EQ to provide satisfying bass
­ Adjustable bass port
­ Comfortable, fits like a custom
8.8
BASS IMPACT
8/10
BASS DEPTH
9.5/10
OVERALL SOUND
8.5/10
BUILD QUALITY
9/10
REVIEWER BIAS
9/10
CONS
­ Expensive
­ Small case may damage earphones
­ Needs an amp to shine
­ Some dislike the stock tips
­ Mid­bass overemphasized w/ bass port open
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5/25/2015
Aurisonics ASG­2.5 Review | Basshead.Club
Categories: Reviews
Tags: Aurisonics, Balanced Armature, Basshead, Dynamic Driver, IEM
Aurisonics ASG­B Review
3 thoughts on “Aurisonics ASG-2.5 Review”
Richard says:
May 25, 2015 at 10:09 pm (Edit)
Would the amp in a Fiio X3ii do these justice?
Reply
Luckbad says:
May 25, 2015 at 11:48 pm (Edit)
It can likely do them some justice from the specs. I think HawaiiBadBoy runs his Fiio X5 into a Cayin C5 before the Aurisonics ASG­2.5, and the X3ii has the same amp as
the X5. It’s possible that it’s completely unnecessary, though.
Reply
hawaiibadboy says:
May 26, 2015 at 2:26 am (Edit)
Awesome review! Looking forward to the one on HF.
Reply
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