Alpha & Delta D6 review
- expatinjapan
'10mm dynamic driver: The custom tuned 10mm dynamic driver satisfies the High Res Audio standard ensuring great clarity and a balanced sound signature.
High Definition sound stage: In order to achieve a spacious sound stage, A&D adopted a Dual Air Chamber acoustic Design and licensed the High Definition Sound Standard (HDSS) www.hdss.com . Both technologies serves to reduce distortion in earphones, improving clarity and soundstage.
Eight Core silver plated copper (SPC) cable: The 8 copper silver plated copper cable allows greater signal transmission, ensuring great clarity.`
'Eight Core silver plated copper cable: Most earphones use the 4 core cable. Once breakage occurs in one of the cables, the earphones cease to function. However, our 8 core (SPC) cable ensures that the earphones continue to function even when one of the cables breaks.
Reinforced Strain relief and Spring protected 3.5mm jack: The D6 is reinforced at the y-split and at the earphone's housing. Moreover, the vulnerable 3.5mm jack is protected by a spring to ensure it can withstand any impact.'
A beautiful cable to be sure, a pity it is a fixed cable and not MMCX or two pin and removable.
'About Dual Chamber Acoustic Design
The dual chamber acoustic design redirects reflected sound waves into a uniquely designed second chamber which absorbs these sound waves. This reduces distortion and improves the clarity and soundstage of the earphones.
About HDSS high definition Sound Technology
Real-time crystal clear sound without distortion
Speakers create sound through vibration. Due to the small enclosure, the reflected sound waves can distort our music by interfering with the sound waves entering our ears. HDSS technology removes these reflected waves to ensure crystal clear sound.
Detailed 3 dimensional sound reproduction
The removal of reflected waves also allows speakers to disperse sound coherently, allowing for a naturally projected sound stage.
About Dual Chamber Acoustic Design
The dual chamber acoustic design redirects reflected sound waves into a uniquely designed second chamber which absorbs these sound waves. This reduces distortion and improves the clarity and soundstage of the earphones.'
Accessories.
Specification
Driver unit: 10mm dynamic driver
Impedance: 16 ohm
Rated power: 1mW
Frequency Response: 10 Hz- 40 Khz
Speaker Sensitivity: 105 +/- db/ mW
Cord Length: 1.2m silver plated copper cable (each core contains 22X 0.05 silver plated copper wires)
Plug: 3.5 mm
Sound
As per usual to keep both warring camps of burn in happy they were given 100 hours prior to review, because to one its important, and to the camp its irrelevant. Once again every body is happy.
Various daps were used to get an average of sonic signature, to see whether it stayed consistent or fluctuated.
Standard 16/44 flac was mostly used.
The Alpha & Delta D6 is a single 10mm dynamic driver.
A usual winner in the earphone world. One driver usually being more easier to tune than many BAs in one shell.
They are easy to drive with their low impedance.
Light weight and hang down comfortably.
Stock tips. Silicone small bore.
Opus SE is 2 Ohms OI.
Opus#1: has the vocals forward, music melodic in the background. Good resolution, spacious.
Laid back, subdued, even.
Opus#3: presents more of a balanced sound with vocals slightly above the music, spacious.
Lighter, more treble reach.
Opus#2: More full bodied sound, more layered, more low end, more nuanced.
Overall the similarities were there and there were no glaring leaps and bounds, the D6 stayed fairly consistent in its performance, not much scaling up as such - a bit, but its performance is more than adequate for the price.
iBasso DX150
1 Ohm OI
Stock amp 6.
Full bodied sound, sound stage medium.
It doesn't seem to reach particularly far into the depths of the sub bass or extend endlessly into the treble but the range is far enough to satisfy. Good timbre. Nice detail.
Shanling M0
The little darling beastie makes its entrance.
Possibly my favorite match, just enough low end, air and treble to please. Comes across as fast and responsive.
More airy and spacious due to the treble, $99 plus $100 and off you go.
I changed to the red silicone tips (wide bore) and theres a bit more low end and mids action. A bit more pleasing to my ears.
The D6 came alive a bit more, more intimate, and the mids come more into play, vocals smoother.
balanced and coherent.
Alpha & Delta D6 and iBasso IT01. The IT01 is more fuller sounding, and has more body overall.
The IT01 seems to be more even orientated. A something for everyone.
The D6 is bit more laid back and has more an emphasis on the mids and treble.
A bit of tip rolling might give some other results.
Price
$95.00 on Amazon US
Overall
The Alpha & Delta is a an earphone thats easy to like. Easy and comfortable hang down style (or over ear), with a comfortable fit with no annoying edges poking into the ear with the nozzle just long enough to avoid such trouble.
The D6 is a DD earphone that has balanced and coherent sound, the emphasis is more in the mids and treble area, but the bass can kick in at the appropriate time.
I has a surprising sound stage for the price (more wide than deep), the detail and imaging is also very good.
Although it doesnt dig deep into either end, the sub bass and treble reach enough without getting too overwhelming for the former, or sibilant for the latter.
The build is solid and has stress relief where it counts.
The cable is beautiful and its a pity it is not removable.
The Alpha & Delta D6. An earphone in the $100 category, excellent build. fairly even sound, with a bit of air, lightness, clarity, detail and slighty mids and treble focussed.
Thank you to Alpha & Delta for sending Head pie the D6 for review
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