When the goal is to replicate the sound quality of reference-class, multi-drivers high-end speakers in your ear, the NuForce Primo 8 earphone stands well apart from the crowd. To achieve this elusive goal of breathtaking realism, explosive dynamic, and natural sound, the Primo 8 embraces patent-pending technology to capture the best of both worlds: the coherence and seamlessness of a one driver earphone, with the detail and transient speed of a balanced armature speaker array.
"If you love a pure, 'all-the-truth-and-nothing-but-the-truth' approach to music reproduction, by all means give the Primo 8 a listen. I think you'll find it is pretty special," reports Chris Martens in an April 16, 2014 review for HiFi+ magazine.
"The Primo 8 is a musical powerhouse with seductive mids, tight bass and airy highs. A universal IEM for the disenfranchised," notes Michael Mercer in an audio360.org post.
"Dynamic and Truly Amazing"
"Primo 8 is a very transparent sounding IEM, without disturbing colorations or veil over the details. Vocalists and instruments are 'lifelike' and natural sounding," says HeadphoneAddict in a post to Head-fi.org.
" Patrick-Pierre Garcia in Quboz.com (French) writes that Primo 8 has "quite impressive overall balance and most important, dynamic and truly amazing stereo."
Balanced Armature Drivers
Four balanced-armature drivers in each earphone deliver a smooth, extended response, explosive dynamic realism and fatigue-free sound.
According to NuForce, their balanced armature drivers deliver the highest efficiency of any in-ear speaker design available. The three-way design features two units that operate as one for bass frequencies and one speaker each for midrange and treble bands. With two bass speakers working in tandem, you will experience the purest, most natural bass possible.
NuForce designed Primo 8 to be far more refined and coherent than any other balanced armature earphones. Its remarkable midrange resolution, clarity, and neutrality are among its most distinctive features.
NuForce Linear-Phase Crossover Network
Primo 8's four-driver speaker array employs a crossover network design that seamlessly distributes the music's frequency bands. The three-way phase-coherent crossover design achieves near perfect linear phase performance, resulting in a natural, fully dimensional soundstage, lightning-fast transients, and crystalline transparency.
The crossover utilizes a proprietary first-order Butterworth filter crossover network to make the earphone's four speakers truly sing as one.
Proprietary Cable Design
Primo 8's cable design utilizes a proprietary two layers of star-pattern wires (Kevlar Silk, silver, and OFC copper wires) with ground-breaking technologies to achieve incredibly accurate sound reproduction. Isolated left and right ground wiring reduces inter-channel crosstalk while maximizing channel separation. The detachable cable is 51.2" long and includes an inline microphone. An optional non-mic cable accessory is available for purchase from NuForce.
For an easy, comfortable fit, Primo 8 comes with two pairs of Comply Isolation foam ear tips (M, L) and eight pairs of silicone ear tips (S, M, L, XL). Also included are a 3.5mm-to-6.5mm adapter and one airline adapter, a leather pouch, a cleaning tool, and a microfiber cleaning cloth.
"If you love a pure, 'all-the-truth-and-nothing-but-the-truth' approach to music reproduction, by all means give the Primo 8 a listen. I think you'll find it is pretty special..."
- Chris Martens, Hi-Fi+, April 16, 2014
"Primo 8 is a very transparent sounding IEM, without disturbing colorations or veil over the details. Vocalists and instruments are "lifelike" and natural sounding..."
- HeadphoneAddict, Head-fi.org
"Imagine to my surprise the moment the first sound that filled the Primo 8, gave a smile to my face. I've heard quite a number of IEMs, but was not prepared for the natural sound that came out of these..."
- kenz, Head-fi.org
"The Primo 8 is a musical powerhouse with seductive mids, tight bass and airy highs. A universal IEM for the disenfranchised."
- Michael Mercer, audio360.org
"The in-ear progress designs for the general public and expert professionals are dazzling...these small earring jewelry provides the accuracy...quite impressive overall balance and most important, dynamic and truly amazing stereo..."
- Patrick-Pierre Garcia, Quboz.com (French)