Grado Headphones
Signature HP100 SE
The flagship. A centenary tribute.
The Signature HP100 SE is Grado's flagship headphone — a Special Edition created to honour founder Joseph Grado's 100th birthday. At its heart is a new 52mm driver with a paper composite cone, rare-earth magnetic circuit, and lightweight copper-plated aluminium voice coil, delivering a frequency response from 3.5 Hz to 51.5 kHz with 117 dB sensitivity and less than 0.1% THD at 100 dB. Individually machined aluminium housings are engraved with the model name, and a redesigned headband with 50% more padding and stainless steel height rods ensures hours of fatigue-free listening. For the first time, Grado includes detachable cables via 4-pin mini XLR — with G-cushion and F-cushion ear pads in the box.
At a Glance
●52mm Signature driver
●3.5 Hz – 51.5 kHz response
●117 dB / 38 Ω
●< 0.1% THD @ 100 dB
●Machined aluminium housing
●Detachable 4-pin mini XLR
●Drivers matched to 0.4 dB
●Handmade in Brooklyn, NY
Key Features
New 52mm Signature Driver
Paper composite cone with rare-earth magnetic circuit and copper-plated aluminium voice coil — 3.5 Hz to 51.5 kHz, 117 dB sensitivity, < 0.1% THD at 100 dB.
Machined Aluminium Housing
Individually machined from specially treated aluminium with engraved model name — a modern tribute to the original HP1/2/3 Signature designs.
Detachable Cable System
4-pin mini XLR connection with 12-conductor braided cable and 6.3 mm termination — balanced XLR and 4.4 mm Pentaconn cables available separately.
Redesigned Headband & Pads
50% more padding, stainless steel band with aluminium gimbals, 105° rotation limit — both G-cushion and F-cushion ear pads included.
Technologies Inside
4th-Generation X Drivers
More power. Less mass. More music.
Grado's 4th-generation X Drivers feature a more powerful magnetic circuit using rare-earth alloys, a voice coil with decreased effective mass using copper-plated aluminium, and a reconfigured 'de-stressed' diaphragm. Available in 44 mm (Prestige/Reference) and 50/52 mm (Statement/Signature) sizes, each driver is tuned for its specific housing material and matched to 0.05 dB per pair — improving efficiency, reducing distortion, and preserving the harmonic integrity of your music at every volume level.
Gallery
A closer look at the Signature HP100 SE.
Experience the Signature HP100 SE
Visit our showroom for a personal demonstration. Hear the difference for yourself.
For complete specifications and technical details, visit the official Grado website.