
Best selling Audio effects
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Crown XTi 4002
There's no debate – when you choose Crown's XTi 2 Series, you're choosing one of the most powerful and innovative amplifiers on the market today. The all-new XTi 2 Series amps continue to set the standard for unmatched performance and value, delivering the goods night after night without breaking a sweat.

2. Img Stage Line Line Stereo Transducer
Professional stereo line transformer for reducing signal interference and ground loops that can occur when connecting PC sound cards to hi-fi systems or mixing consoles.
- Galvanically isolated inputs and outputs
- Gold-plated RCA connectors (600 Ω)
- Frequency range 20-20000 Hz
- Robust, stage-ready metal housing with excellent shielding properties
- Dimensions 125 x 55 x 75 mm
- Weight 650 g
SOUNDCHECK 07/2007 on FGA-102, FGA-202, LC-31, MC-31, and LSP-102: “Every musician or sound technician should have these little helpers in their toolkit. They stand out sonically by their positive unobtrusiveness. Solid metal housings and the functionality of these transformers ensure that many problems on stage and in the rehearsal room are solved cost-effectively.” tools4music 06/2009 on LSP-102, LC-31, FGA-102, FGA-202, DIB-102: “Recommended and roadworthy. Affordable audio helpers for the 'always on hand' tool case.”.

3. Sonstige Studios Timetosser
The Timetosser is an innovative hybrid effects device and electronic instrument that allows for real-time manipulation of audio signals. This versatile device automatically detects the tempo and offers the ability to sample and slice incoming audio sources to spontaneously create new rhythms. The Timetosser is particularly well-suited for use in DJ setups and can significantly enhance performances on any stage. With its ability to generate creative sounds and beats, it is a valuable tool for musicians and DJs looking to make their live acts more dynamic. The device is manufactured in China and combines modern technology with intuitive usability to provide a unique sound experience.

4. UNiKA Pro-USB
The UNiKA PRO-USB is a professional passive DI box designed to convert digital USB audio signals from devices such as mobile phones, tablets, laptops, computers, and other digital audio sources into low-impedance balanced analog signals required by mixers, sound cards, preamps, or active speakers. The PRO-USB is powered via USB-C, eliminating the need for batteries or other power supplies. The specially selected audio isolation transformer and the built-in 32 Bit / 192kHz Digital Audio Converter (DAC) ensure an exceptionally musical sound rich in harmonics. The PRO-USB features a high-quality headphone output for monitoring and troubleshooting, with a beat LED that blinks in sync with the music. With its robust steel housing, full-area anti-slip mat, and recessed connectors, the UNiKA PRO-USB is equally at home on stage and in the studio. The USB-C connection delivers digital audio from the USB port to the built-in Digital Audio Converter (DAC) in the UNiKA PRO-USB. The sample rate reaches up to 192kHz / 32Bit, and most common lossless and compressed digital audio formats are automatically converted. Input: USB-C (via PC, tablet, smartphone, etc.), Output: 2 x XLR ISO Transformer, 3.5mm Stereo Headphone Monitor (16–600Ohm), Powered via USB-C, 32Bit / 192kHz DAC, 2x DSD, Ground Lift, Power LED, dimensions 78 x 124 x 46mm, weight 640g.

5. Behringer HD400
Ultra-compact 2-channel hum eliminator
This handy device quickly and reliably removes mains hum and noise interference. Ground loops are interrupted without any loss of sound quality. Whether you're recording in the studio or performing live, it's always important to keep mains hum out of the mix. Regardless of the quality of the wiring in the room, the HD400 eliminates mains hum quickly and reliably.
Powerful hum finder
The HD400 features two channels, allowing it to eliminate hum on two mono channels or one stereo channel. Try connecting it between the mixer and amplifier, and you'll achieve a clean sound without any hum. The HD400 reliably interrupts ground loops while maintaining the best sound quality. It can even convert unbalanced signals to balanced signals without loss.
A hum killer at a great price
This handy little device is so small that you can easily carry it in any pocket for your performance. Buy an HD400 today and put an end to all hum once and for all.
- Super easy, fast, and reliable removal of mains hum and noise interference
- Safe and effective interruption of ground loops without any loss of sound quality
- Automatic and lossless conversion of unbalanced to balanced signals
- Two 6.3 mm stereo jack inputs and outputs for 2 mono or 1 stereo signal
- High-quality components and an extremely robust construction ensure long lifespan
- Designed by BEHRINGER Germany.

6. Behringer 676
Classic vacuum tube preamplifier and FET-style compressor with Midas transformers. This classic microphone/line tube preamplifier is based on the classic 6176 design. The FET-style compressor is modeled after the legendary 6176 compressor. Both the preamplifier and compressor can be operated independently or simultaneously.
It features premium selection 12AX7/ECC83S and 12AT7/6072 tubes, along with custom-built Midas input and output transformers. The rotary input selector switch provides a choice of input impedance for the mic and Hi-Z inputs. Input gain trim offers a ±10 dB range, and output level controls the input and output stage coloration.
The unit includes a 2-band shelving equalizer with switchable filters, as well as a switchable pad, polarity reverse, and 48 V phantom power. The compressor has an ultra-fast attack time ranging from 20 to 800 microseconds and an adjustable release time from 50 to 1100 milliseconds. A vintage-style meter displays both gain reduction and output.
It features transformer-balanced inputs and outputs on XLR connectors and comes in a rugged 2U rackmount chassis for durability in portable applications. The auto-ranging universal switch-mode power supply ensures compatibility with various power sources.

7. Behringer Ultragraph Fbq-Pro Fbq6200
High-resolution 31-band stereo graphic equalizer with FBQ feedback detection system. Professional audio engineers have known for decades that a good EQ makes a crucial difference in the perception of a performance. Although graphic multiband equalizers have been around for a long time, they have hardly changed – until now! The ULTRAGRAPH PRO FBQ6200HD brings the graphic equalizer into the realm of high-definition audio, offering robust features along with our proprietary FBQ Feedback Detection System – at a price that makes it a must-have for anyone recording or operating a live sound system.
- Audiophile 31-band stereo graphic equalizer for live and studio applications
- The revolutionary FBQ feedback detection system instantly displays critical frequencies and can also be used as an audio analyzer
- Extremely low-noise 4580 operational amplifiers for maximum signal integrity
- Dedicated limiters with gain reduction meters for each channel protect your sound system from overload and distortion
- Pink noise generator provides test signals to adapt your sound system to any room acoustics
- Mono subwoofer output with dedicated level control and adjustable crossover frequency
- Additional tunable high-pass and low-pass filters for each channel eliminate unwanted frequencies, such as rumble, hiss, etc.
- High-precision 8-segment LED input/output display and input gain control for easy level adjustment
- Relay-controlled hard bypass with auto-bypass function in case of power failure
- Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
- "Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response, and low power consumption for energy savings.

8. Behringer FBQ1502HD
High-definition 15-band stereo graphic equalizer with FBQ feedback detection system. Professional audio engineers have known for decades that a good EQ makes all the difference in how a performance is perceived. Although multi-band graphic equalizers have been around for a long time, they have changed very little… until now! The ULTRAGRAPH PRO FBQ1502HD takes the graphic equalizer into the realm of high-definition audio, providing robust features and our proprietary FBQ feedback detection system – at a price that makes it a must-have for anyone who records or operates a live sound system.
- Professional 15-band stereo graphic equalizer for live and studio applications
- Revolutionary FBQ feedback detection system instantly reveals critical frequencies and can also be used as an audio analyzer
- Ultra-low noise 4580 operational amplifiers for highest signal integrity
- Dedicated mono subwoofer output with adjustable crossover frequency
- Additional low-cut filter removes unwanted frequencies, e.g., floor rumble
- Highly accurate 4-segment LED output metering and input gain controls for easy level setting
- Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
- "Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving.

9. Behringer Ultragraph Fbq-Pro Fbq1502
The Behringer ULTRAGRAPH FBQ-PRO FBQ1502 is a powerful 15-band stereo graphic equalizer designed for use at music events. With its Feedback Detection System, it allows for precise sound quality adjustments and helps to avoid unwanted feedback. The integrated subwoofer output enhances bass reproduction, while the high-pass filter optimizes frequency control. The XLR and TRS input/output connections provide versatile connectivity options, enabling easy integration into existing audio setups. With a robust design and user-friendly interface, the FBQ1502 is suitable for both professional and semi-professional applications.
- 15-band stereo graphic equalizer for precise sound processing
- Feedback Detection System to prevent feedback
- Integrated subwoofer output for enhanced bass reproduction
- High-pass filter for frequency control and adjustment.

10. Dbx 286s
Why amplify vocals and instruments with a loud, blurry mixer? The sonic unadulterated dbx 286s mic preamp has all the features you need, including extensive input gain control, switchable +48V phantom power, and an 80Hz high pass filter to eliminate low frequency hum, rumble, or wind. Use the patented dbx OverEasy compressor to transparently equalize uneven acoustic tracks or deliver the classic vocal performance "in your face" that only a dbx compressor can provide. Eliminate tuning fizzling and high-frequency distortion from instruments like cymbals with the frequency-tunable de-esser. Fine-tune the Enhancer HF Detail slider to give your tracks shine and freshness, and adjust the LF Detail slider to give vocals and bass instruments richness and depth while cleaning the muddy low mid frequencies. The separate Threshold and Ratio controls on the expander/gate allow you to subtly reduce headphone leakage or radically noisy guitar amps with the gate. The dbx 286s offers a complete range of measurement and status LEDs that visually guide you to the right sound. The floating balanced XLR microphone input accepts balanced or unbalanced inputs for easy connection to professional and home studio microphones. The additional 1/4" TRS line input can record balanced or uneven signals to process live electronic instruments or tracks already recorded during mixdown. Use the insert jack as the interface between the mic preamp and the signal processing sections to "loop through" to external processors (e.g., EQ or delay unit) or to mix the mic preamp's signal to an external destination. The cost and effort of putting multiple processors together for use on one track can be frustrating. The dbx 286s gives you all the features you need for microphone processing in one box, with the shortest and cleanest signal path to make your music sound great!.
