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PORTABLE · CIRRUS LOGIC CS43131 × 2

JCALLY AP20

A portable DAC and headphone amplifier with two Cirrus Logic CS43131 DAC chips, a 3.5 mm, a 2.5 mm balanced and a 4.4 mm balanced output.

Manufacturer page

JCALLY AP20, official product photo
Photo: JCALLY
POWER AT 32 Ω330mW2.5 mm balanced, per channel not stated
OUTPUT IMPEDANCENot statedNo data from the manufacturer
SNRNot statedNo data from the manufacturer
PRICE~$91.88AliExpress
OUTPUTS3.5 mm · 2.5 mm balanced · 4.4 mm balanced
DAC CHIPCirrus Logic CS43131 × 2
PARAMETRIC EQNot statedJCALLY lists none
CONTOURNot supported

Numbers are the manufacturer's stated figures unless marked as measured; sources linked below.

Outputs and power

2.5 mm balanced
330mWat 32 Ω
Spec image: 330 mW at 32 Ω, high gain, per channel or both channels not stated
125mWat 32 Ω
Spec image: 125 mW at 32 Ω, low gain, per channel or both channels not stated
26.67mWat 600 Ω
Spec image: 26.67 mW at 600 Ω, high gain, per channel or both channels not stated
6.67mWat 600 Ω
Spec image: 6.67 mW at 600 Ω, low gain, per channel or both channels not stated
Output impedance -
4.4 mm balanced
330mWat 32 Ω
Spec image: 330 mW at 32 Ω, high gain, per channel or both channels not stated
125mWat 32 Ω
Spec image: 125 mW at 32 Ω, low gain, per channel or both channels not stated
26.67mWat 600 Ω
Spec image: 26.67 mW at 600 Ω, high gain, per channel or both channels not stated
6.67mWat 600 Ω
Spec image: 6.67 mW at 600 Ω, low gain, per channel or both channels not stated
Output impedance -
3.5 mm
115mWat 32 Ω
Spec image: 115 mW at 32 Ω, high gain, per channel or both channels not stated
31.25mWat 32 Ω
Spec image: 31.25 mW at 32 Ω, low gain, per channel or both channels not stated
6.67mWat 600 Ω
Spec image: 6.67 mW at 600 Ω, high gain, per channel or both channels not stated
1.67mWat 600 Ω
Spec image: 1.67 mW at 600 Ω, low gain, per channel or both channels not stated
Output impedance -

Not stated: supply voltage, SNR, distortion, crosstalk.

The power table gives no channel basis and no THD condition; SNR, THD+N, output impedance and frequency response are not stated anywhere on the page.

Is it enough for your headphones?

JCALLY rates the AP20 at 330 mW into 32 Ω from the 2.5 mm balanced output. Below is how much of that is left to spare for each kind of headphones when you listen loud, with peaks at 110 dB. A figure marked est. is worked out from that rating.

Sensitive IEMsMulti-driver sets that hiss on strong sources
needs 0.6 mWest. 165 mW at 16 Ω+24 dB
Most IEMsTypical in-ears, 16 to 50 Ω
needs 3.2 mW330 mW at 32 Ω+20 dB
Easy-to-drive headphonesClosed and portable, 32 Ω
needs 16 mW330 mW at 32 Ω+13 dB
Hard-to-drive headphones300 Ω, HD 600 class, hungry for voltage
needs 20 mWest. 48 mW at 300 Ω+4 dB
Most planarsPlanar magnetic, low impedance, need current
needs 50 mW330 mW at 32 Ω+8 dB
Demanding planarsThe hardest loads, desktop territory
needs 251 mWest. 192 mW at 60 Ω1 dB short

Where to buy

Some shop links are affiliate links: if you buy through one, I may earn a commission. Your price and the order stay the same.

AliExpress · approximate price, AliExpress listing, checked 7 Nov 2026~$91.88

Compare prices on Soundblooms Deals

The device

From JCALLY's spec images unless marked
InputUSB-C
FormatsPCM up to 32-bit / 384 kHz, DSD256
DAC chipCirrus Logic CS43131 × 2
VolumeVolume+ / Volume- buttons (original: 音量+ / 音量-)
IndicatorBattery indicator: red light flashes slowly while charging; red light flashes fast at very low battery until auto power-off; red light at low battery; cyan light at medium battery; green light at high battery. Source indicator: green in standby and for PCM; blue for USB-exclusive DSD
BuildBuilt-in lithium battery; 7.5 hours battery life; 750mAH battery capacity; switchable between lithium battery and phone power
Parametric EQNo data from the manufacturer. Not supported in Contour.

AP20 is not bus-powered: it has a built-in 750mAH lithium battery, a power button and a battery/phone power switch, and plays from a phone over a Type-C OTG cable. It is neither a dongle nor a DAP nor a desktop unit, so type is set to 'portable'; the main session may map this to the catalog's own type list.

How it stacks up against the competition

Power at 32 Ω · price in US dollars
200 mW500 mW$70$100scale breaks hereMost IEMs need 3.2 mW+20 dB to spareFiiO KA13: 550 mW at 32 Ω, $65.99FiiO KA17: 650 mW at 32 Ω, $144.99FiiO KA5: 265 mW at 32 Ω, $119.99KA5FiiO KA15: 560 mW at 32 Ω, $99.99iBasso DC04PRO: 280 mW at 32 Ω, $119MOONDROP DAWN 4.4: 230 mW at 32 Ω, $69.99FiiO KA1: 45 mW at 32 Ω, $59.99FiiO KA3: 235 mW at 32 Ω, $95.94iBasso DC03PRO: 98 mW at 32 Ω, $69iBasso DC05: 93 mW at 32 Ω, $69iBasso DC06: 320 mW at 32 Ω, $119DC06iBasso DC06PRO: 320 mW at 32 Ω, $119DC06PROHidizs S9 PRO: 200 mW at 32 Ω, $65.99Hidizs S9 Pro Plus Martha: 180 mW at 32 Ω, $65.99Hidizs S8 Pro Robin: 160 mW at 32 Ω, $59.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata BHD Pro: 280 mW at 32 Ω, $59.90Shanling UA2: 195 mW at 32 Ω, $85Shanling UA3: 210 mW at 32 Ω, $109Shanling UA4: 227 mW at 32 Ω, $99UA4iFi GO link: 70 mW at 32 Ω, $59iFi GO link Max: 241 mW at 32 Ω, $79CrinEar Protocol Max: 300 mW at 32 Ω, $76.49 (lowest offer on /deals today)JCALLY Galaxy SONATA: 560 mW at 32 Ω, $79.99JCALLY SP30: 31.3 mW at 32 Ω, ~$54.61NiceHCK Octave: 550 mW at 32 Ω, $89NiceHCK PureAural: 210 mW at 32 Ω, $59.99Muse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99JCALLY AP20200 mW500 mW100 mW$70$100scale breaks hereMost IEMs need 3.2 mW+20 dB to spareFiiO KA13: 550 mW at 32 Ω, $65.99FiiO KA17: 650 mW at 32 Ω, $144.99FiiO KA5: 265 mW at 32 Ω, $119.99KA5FiiO KA15: 560 mW at 32 Ω, $99.99iBasso DC04PRO: 280 mW at 32 Ω, $119DC04PROMOONDROP DAWN 4.4: 230 mW at 32 Ω, $69.99DAWN 4.4FiiO KA1: 45 mW at 32 Ω, $59.99FiiO KA3: 235 mW at 32 Ω, $95.94KA3iBasso DC03PRO: 98 mW at 32 Ω, $69iBasso DC05: 93 mW at 32 Ω, $69iBasso DC06: 320 mW at 32 Ω, $119DC06iBasso DC06PRO: 320 mW at 32 Ω, $119DC06PROHidizs S9 PRO: 200 mW at 32 Ω, $65.99Hidizs S9 Pro Plus Martha: 180 mW at 32 Ω, $65.99Hidizs S8 Pro Robin: 160 mW at 32 Ω, $59.99MOONDROP DAWN PRO 2: 62 mW at 32 Ω, $59.99TempoTec Sonata BHD Pro: 280 mW at 32 Ω, $59.90Shanling UA2: 195 mW at 32 Ω, $85Shanling UA3: 210 mW at 32 Ω, $109Shanling UA4: 227 mW at 32 Ω, $99UA4iFi GO link: 70 mW at 32 Ω, $59iFi GO link Max: 241 mW at 32 Ω, $79GO link MaxCrinEar Protocol Max: 300 mW at 32 Ω, $76.49 (lowest offer on /deals today)Protocol MaxJCALLY Galaxy SONATA: 560 mW at 32 Ω, $79.99JCALLY SP30: 31.3 mW at 32 Ω, ~$54.61NiceHCK Octave: 550 mW at 32 Ω, $89NiceHCK PureAural: 210 mW at 32 Ω, $59.99Muse HiFi M3 Ultra: 480 mW at 32 Ω, $109.99M3 UltraJCALLY AP20
  • Nearby
  • Same DAC chip
  • Most IEMs, 3.2 mW

Devices with the same DAC chip

CS43131 · 24 devices use it
JCALLYJM30L31.25 mW$26.9931.25 mW · $26.99
JCALLYJM3031.25 mW~$2731.25 mW · ~$27
FiiOKA11200 mWNoSGM8262$29.99200 mW · $29.99PEQ No · Amp SGM8262
JCALLYJM20MAX195 mWSGM8262$29.99195 mW · $29.99Amp SGM8262
TRNWorks with ContourBlack Pearl320 mWWorks with Contour10 bands$31.44320 mW · $31.44PEQ Yes, 10 bands
JCALLYJM2031.25 mW~$31.6431.25 mW · ~$31.64
FiiOKA2≥153 mWNo$34.59≥153 mW · $34.59PEQ No
JCALLYJM20 PRO31.25 mWYes8 bands~$35.4631.25 mW · ~$35.46PEQ Yes, 8 bands
TANCHJIMSPACE LITE98 mW$39.9998 mW · $39.99
SnowskyWorks with ContourMelody>250 mW0.736 ΩMeasuredWorks with Contour10 bands$39.99>250 mW · 0.736 Ω · $39.99PEQ Yes, 10 bands
JCALLYJM30PRO31.25 mW~$46.4931.25 mW · ~$46.49
JCALLYSP3031.25 mW~$54.6131.25 mW · ~$54.61

All 24 in the finder

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Sources

Checked 6 Nov 2026
JCALLY AP20 product page
jcally.com · the product page
Used for formats, the DAC chip and outputs