DDHiFi E13P Memory vs ROSESELSA CJ20

Last updated: October 17, 2026

Short answer: the DDHiFi E13P Memory. It ranks #601 of 1291 in-ear headphones by sound quality, rated 3.8/5, at $169.99; the ROSESELSA CJ20 ranks #679, rated 3.7/5, at $169. The price gap is small enough that the sound-quality ranking should decide it.

DDHiFi E13P Memory vs ROSESELSA CJ20

The case for the DDHiFi E13P Memory: A semi in-ear 13mm planar earphone with a built-in USB-C DAC and inline remote. Watch for: Treble sits about 4.7 dB below target, a dark, relaxed balance.

Why pick the ROSESELSA CJ20: A broadly balanced tuning with a preference score of 70 against the Harman target. Watch for: An uneven response, 2.2 dB standard deviation from target.

Buy the DDHiFi E13P Memory. It is rated higher for sound quality, and the $0.99 saving on the ROSESELSA CJ20 is not enough to make up the difference.

Looking for alternatives? See the complete Headphones rankings.

DDHiFi E13P Memory

A semi in-ear 13mm planar earphone with a built-in USB-C DAC and inline remote.

Linsoul $169.99 eBay
$169.99
ROSESELSA CJ20

A broadly balanced tuning with a preference score of 70 against the Harman target.

HiFiGo $169 eBay
$169

Prices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

As an eBay Partner, we may be compensated if you make a purchase.

Specifications Side By Side

DDHiFi E13P Memory ROSESELSA CJ20
Price$169.99$169
Ranked#601 of 1291 in In-Ear Headphones#679 of 1291 in In-Ear Headphones
Form FactorIn-earIn-ear
BackClosedClosed
ConnectionWired (USB-C)Wired (3.5mm)
Driver TypePlanar MagneticDynamic
Drivers1 x 13mm planar magnetic1 Dynamic (10mm topological)
Harman Preference Score71 (median of 4 squig.link measurements, calibrated to AutoEQ)70 (median of 3 squig.link measurements, calibrated to AutoEQ)
Deviation From Target2.18 dB standard deviation2.15 dB standard deviation
Tonal Tilt-0.31 (negative is warmer, positive brighter)-0.47 (negative is warmer, positive brighter)
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (-3.8 dB at 30 Hz)Within 6 dB of target down to 20 Hz (+2.3 dB at 30 Hz)

Frequency Response Compared

Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.

DDHiFi E13P MemoryROSESELSA CJ20Harman target
Frequency response of the DDHiFi E13P Memory and ROSESELSA CJ20-24-18-12-60+6+12+18dB20501002005001k2k5k10k20k

Measurement data: the DDHiFi E13P Memory from aftersound, arn, audioamigo and tonedeafmonk; the ROSESELSA CJ20 from aftersound, atechreviews, audioamigo, hbb, jaytiss and lestat, all via squig.link.

How DDHiFi E13P Memory compares with other leading options: