audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

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Kiwi Ears Quartet: 2DD+2BA Hybrid In-Ear Monitor

Kiwi Ears Quartet

Kiwi Ears Quartet

 

Summary

A: What can you tell me about Kiwi Ears Quartet?

B: It's an in-ear monitor that was designed around a new isobaric double dynamic driver subwoofer.

A: What's unique about the driver design?

B: It utilizes double 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits.

A: What's the result of this design?

B: The subwoofer design emits extremely well extended sub-bass kicks that are tighter, faster, and deeper than any other previous woofer designs.

A: What other features does the Kiwi Ears Quartet have?

B: It has a natural tonal balance, custom balanced armature drivers for crisp and clean tone, and a detachable high-quality oxygen-free silver-plated copper cable that is lightweight and allows noise-free audio transmission.

A: What are the recommended usages for the Kiwi Ears Quartet?

B: It's perfect for performance drummers and bass guitarists who require powerful and impactful lows, as well as music enthusiasts who want quality bass but a natural tonality.

 

The Kiwi Ears Quartet is an in-ear monitor with double 10mm titanium diaphragms drivers and custom balanced armature drivers for a natural tonal balance. It has a detachable high-quality oxygen-free silver-plated copper cable and is made of medical-grade resin. The Quartet is designed for powerful and impactful lows, making it perfect for performance drummers and bass guitarists, as well as music enthusiasts who want quality bass with a natural tonality. It comes with a carrying case and a variety of silicone ear tips.

 

Product Features

  • Innovative double 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits, for extremely well extended sub-bass kicks.
  • Harmonious Balance with a natural tonal balance, providing rich and thick bass without muddying the mids or treble.
  • Custom Balanced Armature Drivers tuned to fit the Quartet's dynamic drivers for crisp and clean tone, detailed highs without shrillness or fatigue.
  • Detachable High-quality oxygen-free silver-plated copper cable that is lightweight and allows noise-free audio transmission.

 

Technical Details

  • MODEL: Kiwi Ears Quartet
  • DRIVERS: 10mm Dynamic Drivers (x2), Custom Balanced Armatures (x2)
  • SENSITIVITY: 110db APL/mW
  • IMPEDANCE: 32ohm
  • EARPHONE MATERIAL: Medical-grade resin
  • CABLE MATERIAL: High-quality oxygen-free silver-plated copper cable
  • CONNECTOR: 0.78mm 2-pin
  • CABLE LENGTH: 1.2m±5%
  • PRICE: $109.00 USD

 

 

The Kiwi Ears Quartet was designed around our new isobaric double dynamic driver subwoofer.

The innovative driver design utilizes double 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits. The pair of drivers were passively aligned to be phase synced and prevent soundwave cancellation. This new subwoofer design emits extremely well extended sub-bass kicks that are tighter, faster, and deeper than any other previous woofer designs.

 

 

The Quartet is Kiwi Ear’s answer for all those who want a fun in-ear monitor that will provide all the quality bass one could need.

 

Kiwi Ears Quartet
Kiwi Ears Quartet
Kiwi Ears Quartet

 

 

Resounding Bass

The Kiwi Ears Quartet was designed around our new isobaric double dynamic driver subwoofer. The innovative driver design utilizes two 10mm titanium diaphragms drivers, each independently driven by dual magnetic circuits. The pair of drivers were passively aligned to be phase synced and prevent soundwave cancellation. This new subwoofer design emits extremely well extended sub-bass kicks that are tighter, faster, and deeper than any other previous woofer designs. The Quartet is Kiwi Ear’s answer for all those who want a fun in-ear monitor that will provide all the quality bass one could need.

 

 

Harmonious Balance

Although the Quartet is a bass-centric IEM, we still aimed to provide a natural tonal balance. This goal was centered around the need to provide a textured and powerful bass, but without any muddying or dulling in the mids or treble. The dynamic drivers were crossed over using a passive low-pass network at 350Hz to allow plenty of rich and thick bass, while the mids from 350-1kHz were tuned to be completely flat.

 

This allows an accurate tonality in the mids like that of neutral studio monitors, while giving a hint of warmth in the lower mids. This means the Quartet will sound thunderous in the bass, but still clean and flat in the mids, preventing unwanted bloating found in most earphones. 

 

 

Custom Balanced Armature Drivers

The Quartet features a custom mid-high frequency balanced armature and a custom ultra-high tweeter balanced armature drivers. These drivers were modified to fit the balance of the new dynamic drivers by a tuned venting system to provide more airflow. Following Kiwi Ears’ tradition, the balanced armatures are passively tuned to fit our in-house target curvature for the mids and trebles. This means the mid-treble provides crisp and clean tone to vocals and instruments, without sounding either dull or nasally. The highs are detailed with plenty of sparkle for professional performance usage, but are natural and free of shrillness or fatigue. 

 

 

The Quartet can be thought of as neutral studio monitors, but with sub-bass and bass emphasis beginning at 350Hz. This provides a little bit more of body, texture, and richness in the lower mids, but neutral mids and upper mids. The Quartet is perfect for performance drummers and bass guitarists who require powerful and impactful lows. Music enthusiasts who want quality bass but a natural tonality will also benefit from the Quartet’s tuning balance. 

 

 

About Kiwi Ears

Driven by the pursuit of extraordinary audio reproduction, at Kiwi Ears, we create the perfect amalgam of technological innovations with refined tuning strategies. With musicians and studio engineers particularly in mind, we are on an uncompromising quest to produce the finest professional In-Ear Monitors that will reveal every nuance in your music and performance. Never settling for mediocre, our small team of dedicated engineers handcrafts each unit so that you can worry less about what’s in your ears and focus more on the sounds you are making. We are Kiwi Ears, and we’re bringing you music heard like never before. 

 

Hand-Crafted

 

Each Quartet unit is hand crafted using medical-grade resin, which is cured and polished to perfection. This results in a beautiful finish that is both durable and safe for the skin.

 

Premium Cable

 

The Quartet features a removable 2-pin connector system that allows connections with any other 2-pin cable. The Quartet comes standard with a high-quality oxygen-free silver-plated copper cable that is lightweight and allows noise-free audio transmission. 

 

 

Inside the Box

 

  • Quartet In-Ear Monitors
  • High-quality oxygen-free silver-plated copper cable
  • Variety of Silicone Ear Tips
  • Carrying Case

 

Kiwi Ears Quartet

Kiwi Ears Quartet

Kiwi Ears Quartet