3.5-inch carbon fiber woofer | 1-inch silk tweeter

Asymmetrical internal and external magnetic circuits

Soft sound-absorbing treble dome design

Directional acoustic waveguides | Double-diffused S-shaped port tube

TI power amplifier | 30W*2+10W*2 power output

Qualcomm QCC5124 Bluetooth chip | Hi-Res Wireless certified

Supports high-res Bluetooth codecs including LDAC/aptX Adaptive

*Pictures are for reference only. The actual product may vary.

In an active desktop speaker, the tweeter frequently plays a crucial role in reproducing fine musical detail, instrumental overtones, and overall treble resolution. The SP3 series, unlike many other active desktop speakers employing a ¾-inch tweeter, instead utilizes a 1-inch tweeter

that can produce frequencies as high as 35kHz. The tweeter’s KSV copper-clad aluminum voice coil that even at high volumes, ultra-high frequencies remain uncompressed – the result being better treble reproduction even in off-axis listening as well as highly resolving treble with natural timbre. With the SP3 series, you will be able to hear even the most subtle of vibrations generated by instruments.

Hear the dynamic air vibrations
Even between the strings

1-inch silk tweeter

Small desktop speakers can be made to produce a grand sound, to achieve a better sound-to-space ratio.  The SP3 series employs a 3.5-inch carbon fiber woofer, larger than typical products in its class.  These larger woofers have an inherent advantage over smaller woofers in dynamics, projecting a larger soundstage, and other sonic attributes. Whether watching movies or listening to music, this woofer is truly capable of expressing the grandness of the audio even at louder volumes.

Carbon fiber is extremely strong and highly rigid yet lightweight – the ideal properties for a speaker driver.  The light weight of carbon fiber allows the woofer to have rapid transient response, while carbon fiber’s high strength and rigidity reduce non-linear distortion by minimizing unwanted secondary vibrations when the driver is moving when producing sound.  Altogether, the carbon fiber material of the woofer helps to reproduce sound faithfully and lets you be more immersed in your high fidelity listening.

Each fiber of carbon fiber in the SP3 series is only 0.007mm thick - the thickness of a single hair.  These fibers are braided together, which helps to enhance sound quality by ensuring a wrinkle-free diaphragm as well as making the diaphragm stronger and more resistant to cracks after extended driver movement and usage.

“To achieve better sound, we use special damping rubber for the woofer in order to retain a transparent sound.  This allows for realistic and highly detailed vocals as well as highly controlled and quick bass to shine through.”

True audiophile-grade quality, starts from here

3.5-inch carbon fiber woofer

In order for the 3.5-inch carbon fiber woofer to really produce potent bass and let the SP3 series perform to its maximum potential, the development team created an asymmetrical internal and external magnetic circuit system. An auxiliary magnet was added to the center of the SP3 series’s internals to form an inner and outer magnetic circuit, which improves the strength of the magnetic field created – allowing for a magnetic flux of up to 1.2 Tesla.  This is the powerful driving force behind the driver that gives the SP3 series its dynamic sound.  In addition, the asymmetrical internal and external magnetic circuit systems also help to reduce non-linear distortion across all frequencies, so good sound is always on hand no matter what music one is listening to.

Robust power, always on hand

Asymmetrical internal and
external magnetic circuits

With the FIIO SP3 series, the development team considered multiple aspects when choosing the material of the tweeter.  The softness of the internal part of the silk tweeter also acts as a soundwave absorbent, effectively absorbing unwanted sound waves behind the driver and further enhancing the sound output by the tweeter.

Low resonance frequency and high current carrying capacity have always been the goals of those designing high fidelity audio products.  The FIIO SP3 series features a large empty cavity rear of the tweeter magnet, allowing the tweeter to play frequencies as low as an astonishing 800Hz.  Even when the tweeter is playing frequencies above 20kHz, the rear cavity and overall design of the tweeter allow for unwanted soundwaves to escape and reduce resonances generated by tweeter movement.  The result is silky smooth yet well-extended treble.

*Tweeter magnetic circuit cooling technology一a magnetic fluid cooling and damping system, for better extended and resolving treble. 

Soft tweeter dome wave-absorbing structure

After going through dozens of different designs, FIIO engineers finally developed the innovative “double-diffused S-shaped porting tube”, which specifically allows the SP3 series to meet its goals of being compact yet capable of producing high-quality sound.  First, this porting tube design features a much smaller cross-section than typical porting tubes, allowing the SP3 series to remain small in volume.  Second, FIIO engineers carefully created the “S” shape of the porting tube to maximize smooth air flow and minimize turbulence. Finally, damping is specifically placed at the inlet and outlet of the tube, for reduced audible noise and for a pure, robust bass quality.  All in all, the SP3 series will easily immerse you in a movie thanks to its ability to accurately reproduce sound effects.

Immersive sound, begins with the details

Double-diffused S-shaped porting tube

The SP3 BT has a standby wake-up function, i.e. if no signal input is detected within 20 minutes, the SP3 BT will automatically enter the standby mode;  if there is signal input detected, the SP3 BT will automatically enter the playback mode.  An automatic “play/pause” makes the speaker more intuitive to your needs.

Dynamic or calm, as you wish

Supports standby wake-up function

The audio authority,
pointing the way to great sound

2-way active crossovers

In professional audio products, an active crossover is used to split the frequencies in a sound signal, with higher frequencies going towards the tweeter amplifier and then the tweeter; and the lower frequencies going towards the woofer amplifier and then the woofer. This ensures less interference between the signals being sent towards different drivers. The FIIO SP3 series adopts an active crossover with a crossover of 3.4kHz specifically chosen to maximize the performance of the tweeter and woofer. 

The SP3 series utilizes a 2-way, second-order active filter circuit to more accurately control the crossover frequency, to better make sure that the signals being sent to each driver are more effectively isolated – resulting in less intermodulation distortion, avoiding driver overload, and greatly improving the use efficiency of power being supplied. The SP3 series power supply can deliver up to an astonishing 100W, allowing you to truly experience truly thunderous sound unparalleled in its class.

One of the most important parts of an active desktop speaker is the amplification. The SP3 series is equipped with two Texas Instruments (TI) 3118 Class D amplifiers, which are highly efficient, feature a low noise floor and help to ensure the purity of the audio signal. 

Make it Louder! Turn it up!

The highly experienced R&D team at FIIO created a 4-channel active crossover system for the SP3 series, so that each driver has its own independent circuit for less interference and higher efficiency in converting signals into sound.

Only a robust power supply is enough to fully maximize the potential of the SP3 series’ high-end components. The R&D team spared no expenses, equipping the SP3 series with two large Nichicon capacitors each with a capacity of 4700uf. These capacitors help to ensure power is more stable and purer by helping to minimize the amplifier power supply ripple. 

① Primary speaker*1, ② Secondary speaker*1, ③ Power adapter*1, ④ AC power cable *1
⑤ RCA to 3.5mm audio input cable *1, ⑥ Primary and secondary speaker connection cable *1
⑦ Instruction manual *1, ⑧ Rubber base*2 pairs (0° and 7°)

Parts list

Get updated on speaker
status, with just a single glance

RGB status lights

In order to make it easier to tell what the speakers are doing, the development team set up an RGB lighting system to clearly display their current status. Additionally, there are also various RGB lighting effects you can adjust at will to further enhance the atmosphere when listening.

FIIO has always adhered to a “user-oriented” principle. From interactions with users, we found that some well-known speaker brands do not include standard speaker connection cables or input cables, so users need to purchase an additional cable. This resulted in a terrible user experience.

As a well-known “accessory supplier” in the HiFi industry, FIIO provides thoughtful product experiences to a vast number of HiFi users with solid materials and rich accessories. Based on market feedback, the SP3 series comes standard with a 3.5mm to RCA input cable and an 8-pin primary and secondary speaker connection cable, both made of monocrystalline coppers and equipped with a shielding layer. These cables are plug-and-play, allowing users to enjoy the professional HiFi sound of the SP3 series with peace of mind.

Consistent FIIO Quality

Standard 8-pin primary and secondary speaker connection cable, Standard 3.5mm to RCA input cable

The SP3 has been certified with Hi-Res Audio by the Japan Audio Association (JAS) and the Consumer Electronics Association (CEA), and the SP3 BT even certified both Hi-Res and Hi-Res Wireless Audio. You can rest assured that the speakers will reproduce your music faithfully and with high fidelity. 

Certified Audio Certification

What's the core

The FIIO SP3 BT features new Type-C/COAX/OPTICAL inputs, allowing you to easily get a “simple one line of communication” between your source and the speakers. Play your music easily and instantly, no matter if you use the modern USB Type-C connector or the proven COAX and OPTICAL inputs.

It's in the right mood now,
playing some music!

New Type-C/COAX/OPTICAL digital inputs

To further enhance your SP3 BT listening experience,  the speakers have been designed to fully work with the FIIO Control APP/FIIO Music mobile apps.   When you successfully connect via Bluetooth, the mobile apps allow you to fine-tune your sound, such as customizing the device name and specifying which Bluetooth codecs you want to use.  But the biggest highlight of the app is the 10-band parametric EQ, allowing you for each band to adjust the Q value, gain, and other parameters.

Your speakers, your sound

Supports 10-band parametric EQ

Tiny 2.35L volume


In order to free up space on your desktop, the SP3 series was designed to fit all of its necessary components in as small of a package as possible – resulting in a total volume of merely 2.35L. The SP3 series gives you the flexibility to create a comfortable desktop setup with ample space.

Get sound and size
Have your cake and eat it too

Pressure die-cast liquid metal cabinet


The SP3 series features a cabinet made of high-strength die-cast aluminum. The inner cabinet walls are carefully made to be uniform, in order to vastly reduce resonance and thus improve sound quality.    The horizontal stripes on the front of the speaker serve to reinforce the speaker cabinet and help eliminate undesirable strong vibrations from loud playing volumes.

Exclusive stand with 7 degrees elevation


For the best listening experience, the tweeter axis should be within 15 degrees of the ear. Included with the SP3 series are 7° elevated bases to get the speakers into that perfect position.    Additionally, the SP3 series bases are made of rubber, which avoids a hard surface connection between the speaker and desktop and acts as a shock absorber.

For outstanding sound quality, the FIIO SP3 series was tuned and designed specifically to ensure that the sound waves optimally reach the listener.  The tweeter is precisely angled so that there is essentially lossless transmission of sound waves for listeners at an off-axis range between 0 to ±15°, so users do not have to be listening at a certain position and thus makes positioning the speakers more convenient.

In addition, the horizontal striped pattern in front of the tweeter has been designed to allow the soundwaves emanating from the tweeter to diffuse more effectively throughout the room, greatly enhancing the perceived soundstage and better providing the illusion of actually being in a grand concert hall.

Create your exclusive HiFi theater

Directional acoustic waveguides

The FIIO SP3 BT supports multiple high-resolution Bluetooth codecs* such as LDAC/aptX Adaptive/AAC, giving you freedom and flexibility to choose how you listen. When using LDAC, you can experience high bitrate audio up to 990kbs, fully letting you hear every last detail in your music.

*For all codecs supported by the SP3 BT, please refer to the product parameters.

Wireless freedom, but with
wired-level sound quality

Supports hi-res Bluetooth codecs
including LDAC/aptX Adaptive

The SP3 BT utilizes the Qualcomm QCC5124 Bluetooth chip, which thanks to its dual DSP and dual-core design is able to capably handle high bitrate audio stably and consistently.

*Bluetooth 5.0 version

Wireless transmission, always online

Qualcomm QCC5124 Bluetooth chip