Errand Resonance 5 In Ear Monitor

The ERAND Resonance 5 is a flagship hybrid driver in-ear monitor, available in Red and Blue, built on a 5-driver, 5-tube, 5-way crossover architecture. Each earpiece combines two dynamic drivers, two balanced armatures and a micro planar driver (2DD + 2BA + 1MP), tuned for springy, deep bass, natural and warm vocals and smoothly extended treble. It redefines what an entry-level IEM can be, bringing flagship-style engineering to everyday listening.

5-Driver, 5-Tube, 5-Way Crossover Architecture

• Liquid silicone dynamic driver: delivers deeper sub-bass density and extension than a standard dynamic driver
• Dynamic driver: integrates seamlessly with the liquid silicone driver for a textured, rich bass response
• Improved midrange balanced armature: achieves better vocal texture
• High-frequency balanced armature: handles the 4kHz–9kHz range for clear high-frequency definition
• Micro planar driver: covers the 9kHz–20kHz ultra-high frequencies with excellent resolution and exceptional treble extension

5-Tube Phase Interference Suppression

Every acoustic tube inside the Resonance 5 is precisely calculated and produced with high-precision 3D printing. The acoustic characteristics of the five drivers are deeply matched and integrated to eliminate phase coherence issues between them, raising overall acoustic performance and sound quality. Dedicated tubes serve the sub-bass, low frequencies, midrange, high frequencies and ultra-high frequencies.

High-Order Crossover Technology

In ordinary RC crossovers, mutual interference between drivers still exists, holding back acoustic performance. The Resonance 5 adds an inductor (L) to build a high-order RLC crossover, significantly reducing interference between the drivers.

• Reduced interference: suppresses inter-driver interference for cleaner sound
• Clearer sound quality: reduces distortion for high-fidelity audio
• High resolution: reproduces every detail with greater accuracy
• Superior performance: a wider frequency range and more stable performance

Sound Signature

Bass: Springy and Deep

A high-quality dynamic driver and a liquid silicone dynamic driver work together, paired with an extra-long low-frequency acoustic tube to better unleash sub-bass. A high-damping pressure relief vent relieves ear canal pressure while adding more texture to the bass.

Vocals: Natural and Warm

Vocals are natural and warm, keeping a sense of atmosphere while revealing fine vocal details.

Treble: Smooth and Extended

The micro planar driver gives the Resonance 5 excellent high-frequency extension, while smooth treble ensures authentic reproduction of instruments and their overtones.

Very Easy to Drive

High sensitivity and low impedance let the Resonance 5 draw effortless power from any device. ERAND also recommends pairing it with Bluetooth earhooks for a stable connection and more freedom in daily use, or with a Bluetooth DAC to unlock higher sound quality and more detail, for richer sound and a wider soundstage than most Bluetooth headphones.

Custom Upgrade Cable

The included cable is built from premium materials to enhance treble, midrange, bass and vocal extension and increase sound density.

• 200-core double-strand high-purity silver-plated copper wire: lower resistance, better conductivity and lossless transmission
• Braided blue jacket: tangle-free, durable and flexible for long-term reliability
• Aviation aluminium hardware: lightweight, sturdy and premium in every detail
• Swappable thick gold-plated 3.5mm and 4.4mm plugs: easily switch plugs to match your devices and preferences
• 0.78mm 2-pin connectors

Specifications

What's in the Box

• 1x pair Resonance 5 earphones
• 1x headphone cable (with 3.5mm and 4.4mm plugs)
• 9x pairs of eartips
• 1x user manual
• 1x quality certificate
• 1x storage case

Warranty information for this product is not currently available on our website. Please contact us for details.