HEDD Audio Type 05 A-Core

Heard as balanced and coherent by almost every listener: SOS calls it transparent yet easy to listen to, MusicTech hears no emphasis anywhere, Headliner calls the balance natural and Barry Johns the most balanced monitor he has heard at the price. The measurements and a minority of ears describe a mild smile instead — ASR's and 0dB's Klippel data show a bass shelf and a slight treble lift, bonedo hears a modern, slightly smiley curve it enjoys, and Maiky76 wonders if it is a bit bright. Amazona hears a character of its own that the shelves only nudge.

“Tonally, the monitors are beautifully coherent from top to bottom, with no emphasis on any part of the audio spectrum.”

John Pickford, MusicTech

“Overall on-axis response is flat but with a noticeable bass boost and slight treble lift”

Amir, Audio Science Review (Klippel NFS)

“Die Type 05 hat einen modernen, leicht Smiley-förmigen Frequenzgang, was dem Hörgenuss der meisten User entgegenkommen dürfte und auch mir gut gefällt.”

Patric Louis, bonedo (≈1 m on a desk) ("The Type 05 has a modern, slightly smiley-shaped frequency response, which should suit most users' listening pleasure and which I like too")

Remarkably deep for a 5-inch box, with tight, punchy control, but not a sub-bass speaker. ASR measured usable output to about 35–40 Hz and was amazed by sub-bass at fair levels (one speaker, 4–5 ft); MusicTech, bonedo, Amazona, Headliner, Barry Johns, Thomann owners and ASR forum members call it surprisingly deep and precise. SOS (1.25 m triangle), Headliner, Riffs, Beards & Gear (functionally about 50 Hz) and Ju1ce Audio all note the true sub-bass octave is missing — a subwoofer for 808- and EDM-heavy work.

“What is impressive for this little speaker is its bass extension, going as low as 35 Hz despite having just a 5 inch woofer in a small enclosure!”

Amir, Audio Science Review (Klippel NFS; listening at 4–5 ft)

“I wasn’t expecting the A‑Core to produce anything in the sub‑bass region (spoiler alert: it didn’t), but what it did do was to produce a superbly controlled, punchy and detailed performance in the bass, low‑mid and midrange areas”

Bob Thomas, Sound On Sound (1.25 m equilateral triangle)

“mixing kicks, mixing 808s, yeah, there's a few octaves left out. I'm not going to lie.”

Ju1ce Audio (YouTube)

Clean, articulate and well integrated with the tweeter — the point video reviewers praise most. Barry Johns calls the midrange outstanding for the price, Ju1ce Audio unbeatable for a two-way next to his Avantone MixCubes, MusicTech and Headliner hear clean low mids and no crossover seam. The measurements show small port and cabinet resonances in the midrange, which ASR could not reliably hear when he tested a fix blind.

“The mid-range is unbeatable for a 2-way.”

Ju1ce Audio (YouTube)

“Upper bass and low-mids are super clean, without a hint of muddle or muddiness, and integration into the broad midrange is seamless.”

John Pickford, MusicTech

“And I found the mid-range in these to be outstanding for the price.”

Barry Johns Studio Talk (YouTube; two months, treated studio and untreated room)

Sources split: the reviewers who listened at length hear the AMT as smooth, airy and fatigue-free, while ASR's Amir found the highs a little too prominent for him and dialled in a high shelf, and several ASR forum readers object to the measured lower-treble distortion and a lift around 5 kHz. The split runs along who listened and who read the graphs; the rear treble shelf (±6 dB, centre detent) is the remedy either way.

Wide, deep and spacious for a small nearfield. SOS describes a solid, spacious sound field at 1.25 m; MusicTech deep, immersive staging; Ju1ce Audio a stage the waveguides throw extremely wide; Headliner spacious imaging; Barry Johns a clear front-to-back layering.

“a very detailed, dynamic, open and smooth performance whose sense of relaxed power across the audio spectrum not only makes it very easy to listen to for long periods, but also helps create a solid and spacious stereo sound field”

Bob Thomas, Sound On Sound

“The wave guides throw the sound stage extremely wide”

Ju1ce Audio (YouTube)

Unanimously precise: a stable phantom centre and pinpoint placement. SOS, bonedo, Headliner and a French Thomann owner in a small untreated room all single it out; MusicTech gets an almost holographic image with the right toe-in, and Ju1ce Audio hears the strongest mono centre he has heard.

“Set up with the right amount of toe-in, the Type 05 A-Cores are able to deliver an almost 3D holographic image with a real walk-around quality.”

John Pickford, MusicTech

“Stereo imaging was precise and immersive, with a clarity that made panning effects and ambient details leap out of the mix.”

Rick Dickerson, Headliner

“L'image stéréo est parfaite, on entend parfaitement ce qui est au centre et ce qui est sur les cotés.”

Robin858, Thomann owner review ("The stereo image is perfect; you can hear exactly what is in the centre and what is at the sides")

Highly resolving and revealing without being tiring — the most consistent praise after imaging. SOS calls it transparent, revealing and analytical yet easy to listen to; MusicTech incredibly detailed; Headliner fatigue-free and highly detailed; owners on Thomann, ASR and Reddit single out its clarity, separation and refinement.

“It is not only transparent, revealing and analytical, but is also easy to listen to”

Bob Thomas, Sound On Sound

“I can confidently say they deliver fatigue-free, highly detailed performance that belies their modest footprint.”

Rick Dickerson, Headliner

“Der Sound ist sehr detailliert und präzise, und für mein Empfinden deutlich besser als bei den Adam A4V sowie meinem älteren Adam A7.”

T. P., Thomann owner review ("The sound is very detailed and precise, and to my ears clearly better than the Adam A4V and my older Adam A7")

Punchy and clean at normal nearfield levels, with limits that show only when pushed. SOS heard no port noise at 85–90 dB SPL and praised its immediacy, Headliner none even at high volume, and Barry Johns no breakup cranked up. ASR's woofer complained loudly at 96 dB SPL in the distortion sweep, and at higher listening levels the ports become "cool air blowers" — Ju1ce Audio felt the gusts at very close range. Amazona finds it softer and less punchy than DSP monitors.

“At my normal 85‑90 dB SPL monitoring level, there was no discernible port noise”

Bob Thomas, Sound On Sound

“Turn up the volume a bit more though and the ports become cool air blowers, pushing your hair back!”

Amir, Audio Science Review (one speaker, 4–5 ft)

“Der Klang ist allgemein weicher, indirekter und hat erwartungsgemäß nicht ganz so viel Punch wie die digital aufbereiteten Signale, die sonst über verschiedene DSPs laufen”

Axel Ritt, Amazona.de ("The sound is generally softer, more indirect and, as expected, has not quite as much punch as digitally processed signals that otherwise run through various DSPs")

Fairly easy to place, but keep the tweeter at ear height and use the bass knob in small rooms. ASR found the deep bass excited a room mode at 4–5 ft and turned the bass shelf down; Headliner left the controls flat in the studio but trimmed a little low end in an untreated living room; SOS needed no adjustment at 1.25 m. A Thomann owner in a small, barely treated room found the bass never too much. Vertical dispersion is narrow, so measurement readers advise staying at tweeter height with 10–15° of toe-in, and HEDD warns that laying it on its side narrows the sweet spot.

“In studio conditions, the rear-panel controls remained flat, while in the untreated living room space, I trimmed a touch of low end via the bass shelf when using RCA inputs.”

Rick Dickerson, Headliner (studio and living room)

“Les enceintes descendent très bas pour des 5" mais cela n'est jamais trop (même dans une petite pièce), les basses restent précises.”

Robin858, Thomann owner review ("The speakers go very low for 5-inchers but it's never too much, even in a small room; the bass stays precise")

“Better stay at tweeter height”

Maiky76, Audio Science Review forum (from ASR's data)

Mixes made on it travel. MusicTech finds it neither flattering nor NS10-ruthless and usable all day; Ju1ce Audio found it matched his Avantone MixCubes on midrange information; Barry Johns re-mixed in an untreated room with results remarkably close to his studio's; a Thomann owner says it improved his mixes; White Sea Studio suggests it as a mix-check pair.

“They don’t flatter recordings to the degree that mixes then sound flat and lifeless through domestic equipment, yet they aren’t as ruthless as, say, Yamaha NS10s, which become tiresome during lengthy mixing sessions.”

John Pickford, MusicTech

“And they are even more revealing in the low end which has helps me improve my mixes even more.”

True B, Thomann owner review

“I never felt like I had to learn these speakers in my room. They just were very very natural.”

Barry Johns Studio Talk (YouTube)

Sources split on whether its hiss matters, though each owner who mentions it hears some at about a metre in a quiet room. Owners on ASR and Reddit call it faint and fine at 1 m — a little lower than HEDD's Type 07 MK2 — and Ju1ce Audio likes that it powers up in standby with no pop. A German Thomann owner found the noise floor clearly audible next to his old ADAM A7 and returned the pair for Neumann KH 150s. No lab has published a self-noise figure.

Deliberately basic, and opinion follows taste. ASR prefers its continuous shelving knobs to DIP switches, owners and Headliner like having nothing to fiddle with, and RCA plus XLR/TRS inputs cover studio and hi-fi sources. Against it: no DSP room correction, time alignment or sealed mode (the MK2 has those), and no low-cut for pairing with a subwoofer — points Amazona, bonedo, White Sea Studio and Riffs, Beards & Gear raise.

“Continuous bass and treble controls are better than simple dip switches.”

Amir, Audio Science Review

“Eine harter Low-Cut ab einer bestimmten Frequenz lässt sich bei diesem System nicht einstellen, was insbesondere im Zusammenspiel mit einem Subwoofer wichtig wäre.”

Axel Ritt, Amazona.de ("A hard low-cut at a set frequency can't be dialled in on this system, which would matter especially with a subwoofer")

“things that some users may get turned off by is the lack of digital features and the lack of DSP.”

Riffs, Beards & Gear (YouTube)

Simple to set up: a big level knob, shelving knobs that click at 0 dB, an input selector and a standby button on the front that also stops switch-on pops. The one catch is gain — the input is set for professional +4 dBu levels, and a Reddit owner found a WiiM Ultra struggled to drive them.

“Alle Drehregler rasten mittig am 0-Dezibel-Punkt mittig ein.”

Patric Louis, bonedo ("All the knobs click into a centre detent at 0 dB")

“The only issue I am finding is pairing my wiim ultra with hedd type 05 a-core as they seem power hungry.”

Zealousideal-Ice3826, r/BudgetAudiophile (owner)

Sources split, but not over the units in hand: every reviewer who handled it calls the cabinet dense, solid and free of resonance (Headliner says a tap suggests metal), with a five-year warranty after registration. The dissent is about HEDD's record — ASR forum members cite a bad reliability reputation, mostly for the DSP models, and hope the analogue design does better. Owners' only faults so far are a loose volume-knob cap and a satin finish that shows fingerprints.

Sources split along press and forum lines. SOS, MusicTech, Headliner and Barry Johns see excellent value at about $1,398 a pair — about 30 percent less than the MK2 for the same sound — and ASR forum members credit the engineering behind its bass. Other ASR members point to the Kali LP-6 V2 for far less, the Neumann KH 120 II or Genelec 8030C for a little more, and call $700 a cabinet not inexpensive; Riffs, Beards & Gear isn't sure it is competitive.