ddHiFi Memory Pd4.4 Retro Planar IEM
The ddHiFi Memory Pd4.4 draws listeners in with naturally warm vocals, tight planar bass, and a smooth, non-fatiguing treble. Head-Fi highlights its intimate yet wide soundstage, making this ultralight semi-in-ear an engaging choice for relaxed, vocal-led listening without sacrificing low-end control or spaciousness.
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Just Okay
Sound Quality
88/100
Fit Comfort Isolation
50/100
Build Accessories
50/100
Value for Money
85/100
Pros
Naturally warm, intimate midrange gives vocals an inviting and relaxed presence.
Tight bass, smooth treble, and a non-fatiguing balance support easy long-form listening.
Wide soundstage adds welcome space to its close, vocal-focused presentation.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 88/100
The supplied Head-Fi review characterizes the Memory Pd4.4 as an intimate, non-fatiguing semi-in-ear monitor with tight bass, naturally warm mids, smooth treble, and a wide stage. It presents a relaxed, vocal-focused balance rather than an aggressively analytical one; the review gives little direct detail on dense-mix resolution or dynamic impact.
Bass
89/100
Head-Fi specifically describes the bass as tight, supporting an impression of controlled low-end presentation. The review does not elaborate on sub-bass extension, slam, or bass texture.
Midrange
91/100
Naturally warm mids are one of the review's stated highlights, and the overall presentation is described as intimate and vocal-focused. This should suit listeners who prioritize easy, close-up vocal delivery over a distant or lean midrange.
Treble
89/100
The treble is described as smooth, while the overall sound is explicitly called non-fatiguing. There is no detailed commentary on upper-treble air, sparkle, or extension.
Resolution Separation
84/100
The available review does not directly assess microdetail retrieval, layering, or separation in demanding arrangements. Its smooth and non-fatiguing character should not be read as evidence of an especially analytical presentation.
Soundstage Imaging
90/100
Head-Fi explicitly notes a wide soundstage, a notable spatial strength for this design. The review says little about image placement, depth, or positional precision.
Dynamics Coherence
84/100
The review's praise for tight bass and an easy-going overall balance suggests a composed presentation. It provides little direct information about macro-dynamic punch, transient attack, or behavior with rhythmically demanding music.
FIT COMFORT ISOLATION PERFORMANCE 50/100
The supplied review identifies this as an ultralight semi-in-ear monitor, but does not meaningfully discuss seal consistency, extended-wear comfort, or real-world isolation. Semi-in-ear fit can vary substantially between listeners, particularly where bass response depends on positioning.
Seal Stability
50/100
The review does not report whether the shell consistently maintains its position or whether fit changes bass response. Prospective buyers should expect a semi-in-ear fit to be more anatomy-dependent than a deeply sealing in-ear design.
Comfort
50/100
Head-Fi calls the Memory Pd4.4 ultralight, which may be encouraging for wearability. However, there is no direct report on pressure points, nozzle fit, or comfort during long listening sessions.
Isolation
50/100
The supplied material does not assess passive isolation. As a semi-in-ear monitor, it is unlikely to serve the same isolation-focused role as a deep-sealing stage IEM, but the review provides no direct comparison.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Accessories
50/100
The product description lists a palladium-plated copper housing and braided 6N OCC cable, but the supplied review does not assess finish quality, connector security, cable handling, included tips, case, or durability. There is little reviewer evidence about day-to-day ownership.
Value for Money
85/100
At $189.99, the Memory Pd4.4 sits in a competitive enthusiast-IEM segment. The supplied review is positive about its warm, smooth, vocal-oriented sound, but does not directly compare its value with similarly priced alternatives.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- Driver Configuration
- 13mm Planar Driver
- Plug
- 4.4mm
- Effective Frequency Response Range
- 20Hz-20kHz
- Impedance
- 16Ω±15% (@1kHz)
- Sensitivity
- 121dB/Vrms(@1kHz)
- THD
- ≤0.1%(@1kHz)
- Housing
- Palladium-Plated Pure Copper Housing
- Cable
- Black Braided 6N OCC Cable
- Weight
- Approx. 31g
- Length
- 120cm
Manufacturer's Description — ddHiFi
Featuring a precision-machined pure copper housing with meticulously controlled wall thickness.
The Memory 4.4 features a revolutionary 13mm ultra-linear,full-range annular planar unit.
Crafted from premium microfiber leather and equipped with YKK zippers,the interior features dedicated compartments to keep the left and right metal earpieces separated.
Verified Dealers
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Authorized dealers for ddHiFi Memory Pd4.4 Retro Planar IEM
- Akalın Muzik Ltd. — in-store — İstanbul, Turkey (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Concierge — online and in-store — England, United Kingdom (website)
- Audio essence — online and in-store — Zürich, Zürich, Switzerland (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
- AV ONE — online and in-store — Singapore, Singapore (website)
- BAY BLOOR RADIO — online and in-store — Toronto, Ontario, Canada (website)
- Bloom Audio — online and in-store — Gibbsboro, New Jersey, United States (website)
- Headphone Zone — online and in-store — Laxmi Industrial Estate, Maharashtra, India (website)
and 8 more verified dealers