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Reddit
reddit.com › r/cassetteculture › fiio cp13 - a first impression and detailed review
r/cassetteculture on Reddit: Fiio CP13 - a first impression and detailed review
February 12, 2024 -

There were a few CP13 from the first batch showing up on Fiio Shop germany, so i decided to get one out of curiosity.
Today, it finally arrived and while sceptical at first, it´s first impression actually isn´t that bad.
The box is heavy, the unboxing experience great and the player itself feels very premium.
The cassette lid even locks into place properly and needs more force to be opened again - very good.

The lid has a pretty large window, which really looks stylish.

The frequency response seems pretty good on this one, there´s a good amount of trebles and the bass is punchy, but not too much.
See the attached images for more details.
Tested this player with my DT 1990 pro headphones (250 Ohm) and it´s getting decently loud, although i noticed something weird:
At low and high volume, the trebles are more present, in the middle it´s a bit reduced.
Probably caused by the high impedance of my headphones, though i haven´t noticed anything like that on my other equipment.

Also there´s quite some motor buzzing noise noticeable, similar to the WaR, but not as bad.
Still dissapointed, since the Mulann B1000, sold by Recording The Masters, doesn´t have ANY motor noise. So it´s definitely possible to get rid of it entirely!

The Fiio CP13 doesn´t have any advanced features, such as equalization settings for high bias tapes (chrome&metal) or any kind of noise reduction system, as expected.
Only type I ferric tapes will be played back correctly.
Given the already good treble response, type II/IV tapes and/or dolby encoded tapes will sound too bright.

For the wow&flutter performance, i sourced an properly recorded and calibrated test tape with a 3150kHz tone.
The amount of wow&flutter will probably reduce over time, but out of the box, it´s around 0,25%WRMS
It´s approx. 10Hz fast, so almost "spot on", but subject to change over time, as the mech loosens up).
There´s no access hole to adjust the speed! Dissasembly needed!
See the attached images for more details.

The mechanism still reacts to the device been tilted around, especiall horizontally.
The capstan&flywheel combo has a tiny little bit of play to move back and forth, causing the tape to be pulled away and worsen the treble response.
The same issue occured to the WaR and Mulann B1000, but the WaR is the worst example.
The tape usually goes back to normal after a few seconds.

I previously uploaded some test footage, to be found here, took the opportunity to simply add the CP13 here aswell.

So would i recommend the Fiio CP13 ?
Yes, it´s actually enjoyable, but a quite expensive retail price of 129€ ( Fiio Shop germany).

Will i replace my vintage gear? Hell no!

There´s still a chance to get a Sony WM EX 67x plus new belt, plus new pinch rollers, plus new battery, plus new charger for the same amount of money.
That´s obviously the better tape player, but usually needs service.

The packaging is well done, everything is covered by foam. Free protective film for the lid window, USB C charging cable Wow&Flutter Frequency response (high) Frequency response (low - threshold around 40Hz) Frequency response 18hz - 18kHz (overall - peaks correspond to test tones on the tape, everything else is backround noise "tape hiss")

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Audio Reviews
audioreviews.org › fiio-cp13-portable-cassette-player-review-dw
FIIO CP13 Portable Cassette Player Review (2) - Rewind And Unwind • Music For The Masses
May 5, 2025 - FIIO CP13 compared to Sony WM-F2015 and Aiwa TA117. The FIIO’s C13 sounds like a modern analog player, but leans bright and has less powerful bass compared to the Sony. The Aiwa TA117 wasn’t even in the same league, it sounds bloated, muddy, and was just ugly to listen to. Funny thing is that I probably owned the Sony first, and bought the Aiwa later for more bass. Depth and high frequency reproduction is improved on the CP13 over the Sony.
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Headfonics
headfonics.com › home › sources › fiio cp13 review
FiiO CP13 Review — Headfonics
February 7, 2025 - Hence the need to gauge W&F using a defined tape, at a defined frequency. All measurements were made from A.N.T. Audio downloadable software on a Dell Latitude 7290, and a 3.5mm to 3.5mm cable for continuity. Comparisons were made for the FiiO CP13, We Are Rewind, and two vintage Sony Walkman ...
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Reddit
reddit.com › r/cassetteculture › fiio cp13 is not great, but for a different reason
r/cassetteculture on Reddit: Fiio CP13 is not great, but for a different reason
July 2, 2024 - -20dB measurement is the proper level to test the frequency response of cassette players, and at this level the response should be as flat as possible. In case of Fiio CP13 it is far from flat.
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FiiO
fiio.com › cp13
Guangzhou Feiao Electronic Technology Co., Ltd.-CP13
The CP13 employs the renowned JRC5532, known to some as the classic “King of op-amps.” This op-amp is deployed in a fully analog audio circuit that provides a familiar, pleasant sound that will surely leave an impression. ... Note: Due to inherent properties of cassette tapes, the noise floor is significantly more audible compared to digital audio players. ... Copyright © FIIO.
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Tapeheads.net
tapeheads.net › forums › tape, taping and tape machines › cassette › walkmans, boomboxes and all other portables
FIIO CP13, I wish them a success | Tapeheads.net
October 28, 2024 - It's a shame that with modern tech, we still can't match the regular old mid-grade stuff from the 90s-2000s. Even my Walkman Sports WM-F2078 which lacks MegaBass's manual states the frequency response as 30-15,000Hz.
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FiiO
fiio.com › cp13_parameters
Guangzhou Feiao Electronic Technology Co., Ltd.-CP13_parameters
2024, Feiao's sincere work -- CP13. We have invested a lot of time, energy and cost, in-depth cooperation with the supply chain, customized movement to ensure ultra-low shaking rate, selected and customized important components to reproduce the classic analog sound.
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AV.com
av.com › home › fiio cp13 review: are cassette players back?
FiiO CP13 Review: Are Cassette Players Back? - AV.com Blog
July 22, 2025 - However, I did feel that the low frequencies were quite weak and the bass could have had more of a punch. Keep in mind that since the FiiO CP13 is an analogue device, the sound is only as good as the tape that is playing, so you may experience background noise from poor-quality recordings.
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Headfonia
headfonia.com › source › portable source
FiiO CP13 Review - Headfonia
March 13, 2025 - The $129 USD FiiO CP13 is the first cassette player from the brand, with a super cool design and a pure analog circuitry. Now on Headfonia!
Find elsewhere
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Head-Fi.org
head-fi.org › home › forums › equipment forums › portable source gear
FIIO first cassette player CP13 is officially released! | Page 14 | Headphone Reviews and Discussion - Head-Fi.org
December 14, 2023 - The Specs of CP13 about: W&F - 0.22% (Publishable value), 0.15% (minimum value)--This is the current data from a small batch, and batch testing will be needed to see if there is subsequent improvement Frequency range - 40-15000 @4Hz-- Output ...
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HiFiGo
hifigo.com › home › fiio cp13 portable stereo cassette player
FiiO CP13 Portable Stereo Cassette Player
Features:- >Nostalgic Cassette Player. >Portable and Handy. >Low WOW and Flutter Rate. >Super Large Pure Copper Flywheel. >100% Pure Analog Sound Performance. >Customized Balanced Amplification Magnetic Head. >Classic Audiophile-Grade OPAMP JRC5532. >High-Voltage Driven Motor Power Supply.
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Pocket-lint
pocket-lint.com › home › speakers › speakers reviews › the fiio cp13 is the most beautiful cassette player i've ever seen
The Fiio CP13 is the most beautiful cassette player I've ever seen
The very first thing I thought when I unboxed the Fiio CP13 was just how beautiful it is. And sure enough, while using the cassette player, I did notice less frequency wobble, commonly called "flutter" and "wow." I played a few of the same cassettes in the Fiio CP13 along with two other cassette players I have, the ByronStatics cassette player and the Gracioso cassette player, and every cassette sounded much better in the Fiio CP13 than the other two.
Published   September 8, 2024
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Reddit
reddit.com › r/cassetteculture › fiio cp13 or vintage walkman?
r/cassetteculture on Reddit: Fiio CP13 or vintage walkman?
March 31, 2024 -

Hi everyone, I'm pretty new to the cassette world, I was just collecting vinyl for a couple of years, so, I am looking to buy something to reproduce my cassettes but I need it to be portable. Watching reviews and stuff I found out Fiio launched a walkman style cassette player that seemed to be good, do you guys think thats a good option for its price or should I buy a Sony walkman from the 90s? Because people reviewing Fiio don't seem to like it that much.

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Digital Trends
digitaltrends.com › home › audio / video › reviews
Fiio's CP13 cassette player took me on a glorious nostalgia trip - Digital Trends
Fiio's CP13 cassette player took me on a glorious nostalgia trip
Fiio has also seen fit to give the CP13 a few upgrades from the days of Walkmen past, giving it a higher 4.3-volt motor power supply and a more modern speed control circuit, as well as an oversized copper flywheel that Fiio says reduces wow and flutter (aka, frequency wobble), which keeps playback ...
Rating: 7/10 ​
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Bloom Audio
bloomaudio.com › products › fiio-cp13
FiiO CP13 Portable Stereo Cassette Player | Bloom Audio
Experience Premium Analog Sound and Modern Design with the FiiO CP13, Bringing Classic Listening to New Heights Oversized copper flywheel ensures stable and accurate tape playback Balanced amplification circuit delivers superior sound quality Aluminum alloy chassis combines durability with ...
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FiiO
fiio.com › newsinfo › 911974.html
FiiO CP13 Portable Cassette Player Review-FIIO---BORN FOR MUSIC
The FiiO CP13 is a portable cassette player with a straightforward design, large buttons, and a minimal feature set. The cassette player, which was first introduced at CES, features a rechargeable Lithium Ion battery and a USB-C connector, among other contemporary features.
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GBAtemp
gbatemp.net › home › reviews › hardware
FiiO CP13 Review (Hardware) - Official GBAtemp Review | GBAtemp.net - The Independent Video Game Community
FiiO CP13
The CP13 cassette player is the first in FiiO’s Retro line of products. Does the audio specialist do a good job at bringing back analogue music players?
Rating: 8/10 ​
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Amazon
amazon.com › FiiO-Portable-Cassette-Earphone-Ultra-Low › dp › B0CYP26K5T
Amazon.com: FiiO CP13 Cassette Player (Black/White) : Electronics
CP13 features a high-capacity 1800mAh lithium battery, providing more power and longer lifespan, offering over 13 hours of continuous playback and an outstanding standby time of over 268 days.
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Wifi Hifi Magazine
wifihifi.com › wifi hifi magazine › daily news › audio › review: fiio cp13 portable cassette player – all the nostalgia without the hiss!
Review: FIIO CP13 Portable Cassette Player - all the Nostalgia Without the Hiss! - Wifi Hifi Magazine
September 23, 2024 - The FIIO CP13 features an oversized copper fly wheel to minimize “wow and flutter” – the wobbly sound when the tape becomes unbalanced impacting the sound – as low as possible, a custom balanced amplification head, a high voltage power supply that ensures motor stability during cassette playback and performs with a 13-hour battery life.