{{ 'fb_in_app_browser_popup.desc' | translate }} {{ 'fb_in_app_browser_popup.copy_link' | translate }}

{{ 'in_app_browser_popup.desc' | translate }}

感謝各位一直以來對 OTG 的支持! 我們於10月1號正式更名為 FUTEX,品牌名稱雖然更新,但我們的服務承諾依然不變。

Free shipping for members with purchases over $100 🚚

💰New registered members will get 50 shopping credits💰

感謝各位一直以來對 OTG 的支持! 我們於10月1號正式更名為 FUTEX,品牌名稱雖然更新,但我們的服務承諾依然不變。

Free shipping for members with purchases over $100 🚚

💰New registered members will get 50 shopping credits💰

感謝各位一直以來對 OTG 的支持! 我們於10月1號正式更名為 FUTEX,品牌名稱雖然更新,但我們的服務承諾依然不變。

Your Shopping Cart is empty.
{{ (item.variation.media ? item.variation.media.alt_translations : item.product.cover_media.alt_translations) | translateModel }} {{ (item.variation.media
                    ? item.variation.media.alt_translations
                    : item.product.cover_media.alt_translations) | translateModel
                }}
{{ 'product.bundled_products.label' | translate }}
{{ 'product.bundle_group_products.label' | translate }}
{{ 'product.buyandget.label' | translate }}
{{ 'product.gift.label' | translate }}
{{ 'product.addon_products.label' | translate }}
{{item.product.title_translations|translateModel}}
{{ field.name_translations | translateModel }}
  • {{ childProduct.title_translations | translateModel }}

    {{ getChildVariationShorthand(childProduct.child_variation) }}

{{ 'product.set.open_variation' | translate }}
  • {{ getSelectedItemDetail(selectedChildProduct, item).childProductName }} x {{ selectedChildProduct.quantity || 1 }}

    {{ getSelectedItemDetail(selectedChildProduct, item).childVariationName }}

{{item.variation.name}}
{{item.quantity}}x HK$0 {{ item.unit_point }} Point
{{addonItem.product.cover_media.alt_translations | translateModel}}
{{ 'product.addon_products.label' | translate }}
{{addonItem.product.title_translations|translateModel}}
{{addonItem.quantity}}x {{ mainConfig.merchantData.base_currency.alternate_symbol + "0" }}
【Mix n Match】Benchmark HPA4 + Grado HP100SE/S950

【Mix n Match】Benchmark HPA4 + Grado HP100SE/S950

{{ productService.variationPriceMemberTag(variationSelected) }}
{{shoplineProductReview.avg_score}} {{'product.product_review.stars' | translate}} | {{shoplineProductReview.total}} {{'product.product_review.reviews' | translate}}
{{amazonProductReview.avg_rating}} {{'product.product_review.stars' | translate}} | {{amazonProductReview.total_comment_count}} {{'product.product_review.reviews' | translate}}
{{ title.name_translations | translateModel }} : {{variationName[$index] | translateModel}}
Quantity
Add to Wishlist
The maximum quantity per submit is 99999
This quantity is invalid, please enter a valid quantity.
Sold Out

Not enough stock.
Your item was not added to your cart.

Not enough stock.
Please adjust your quantity.

{{'products.quick_cart.out_of_number_hint'| translate}}

{{'product.preorder_limit.hint'| translate}}

Limit {{ product.max_order_quantity }} per order.

Only {{ quantityOfStock }} item(s) left.

Please message the shop owner for order details.
Add to Wishlist
Description
Additional details
Shipping & Payment
Customer Reviews

Overview


Featuring the flagship THX-888 amplifier design, the revolutionary HPA4 headphone amplifier incorporates the same THX AAA technology that Benchmark uses in the AHB2 power amplifier. The HPA4 delivers sonic perfection. Hear the music without any contamination from electronic noise or distortion. The HPA4 delivers power, audio fidelity, speed and accuracy over an utterly silent background.

Features


  • THX-888 (AAA™) Headphone Amplifier
  • Benchmark Low-Noise Line Amplifier
  • 256-Step Fully-Balanced Relay Gain Control, 0.5 dB Steps
  • Precision Timed Relay Closures
  • Precision Metal Film Resistors
  • Gold-Contact Relays
  • Balanced and Unbalanced I/O
  • 6 Watts into 16 Ohm Headphones
  • 11.5 Vrms into 300 Ohm Headphones
  • 0.01 Hz to 500 kHz
  • SNR > 135 dB
  • THD < 125 dB (0.00006%) under full load
  • Short-Circuit Protection
  • DC Protection
  • Over-Voltage Protection
  • Over-Current Protection
  • Thermal Protection
  • Touch Screen Control
  • IR Remote Control (optional)
  • 2 Balanced Stereo Line Inputs
  • 2 Unbalanced Stereo Line Inputs
  • 1 Balanced Stereo Line Output
  • 1 Unbalanced Stereo Line Output
  • 1 Balanced Mono Sum Output
  • 2 Bidirectional 12V Trigger Ports

Specifications


(using balanced inputs at +24 dBu)

THX-888™ Headphone Output:
  • THD < -125 dB (0.00006%)
  • SNR > 131 dB, unweighted, 20-20 kHz
  • SNR > 135 dB, A-weighted
  • Frequency Response - 0.003 dB at 10 Hz, -0.001 dB at 20 kHz
  • - 3 dB Bandwidth exceeds 0.1 Hz to 500 kHz
  • Output Impedance, near 0 Ohms
  • Output Noise < 2.45 uV at Unity Gain, 20-20 kHz
  • Maximum Output Power, 6 Watts into 16 Ohms
  • Maximum Output Current, 1.5 A
  • Maximum Output Voltage, 11.5 Vrms into 300 Ohms
  • Crosstalk < -133 dB @ 1 kHz, -115 dB @ 10 kHz (XLR4)
Balanced Line Outputs:
  • THD < -125 dB (0.00006%)
  • SNR > 135 dB, unweighted, 20-20 kHz
  • SNR > 137 dB, A-weighted
  • Frequency Response - 0.003 dB at 10 Hz, -0.001 dB at 20 kHz
  • - 3 dB Bandwidth exceeds 0.1 Hz to 500 kHz
  • Output Impedance 60 Ohms
  • Output Noise < 1.9 uV at Unity Gain, 20-20 kHz
  • Maximum Input and Output Voltage, 20 Vrms (+28 dBu)
  • Crosstalk < -133 dB @ 1 kHz, -116 dB @ 10 kHz

Dimensions:
21.9cm W x 9 .8cm H x 21.1cm D (Including Feet)

21.9cm W x 8.8cm H x 21.1cm D (Excluding Feet)

Weight:
3.6kg

Power:
  • 18W Typical Input Power
  • 35W Maximum Input power
  • 0.33 W Standby Power (when off)
  • Internal Universal Power Supply


Grado’s New Signature

Grado’s new Signature HP100 SE headphones are a contemporary homage to the trailblazing high-end HP1 model heralding a new design direction!

World-renowned designer and manufacturer of award-winning headphones, Grado Labs presents its newest and flagship model, the Signature HP100 SE. Grado Labs founder Joseph Grado created what many consider to be the high-end headphone market with the release of the Signature HP1 headphone in the early 1990s. In recognition of Joseph Grado’s 100th birthday and this industry milestone, Grado Labs is producing these Special Edition headphones. “Although Uncle Joe left us 10 years ago, he will always be a presence at Grado Labs”, says Joseph’s nephew and Grado’s CEO, John Grado.

  • NEW 52mm Dynamic Driver
  • Hand machined Aluminum Housing
  • White Stitched Leather Headband
  • Drivers matched to .04dB
  • NEW Detachable 12 Conductor Cable
  • G cushions and F style cushions
  • Hand Assembled in Brooklyn, NY, USA

While the HP100 SE pays homage to Grado’s illustrious past, these headphones are a contemporary version of a true classic, with a new design from the ground up. With newly engineered drivers, the HP100 SE also boasts detachable cables, as well as a fresh headband assembly. This also ushers in a new direction for future Grado headphone releases. As always, the HP100 SE is hand-assembled in its Brooklyn-based headquarters.


NEW Driver Design

At the heart of the HP100 SE is a completely new speaker design. In considering the attributes of a new 52mm driver, Grado’s goal was to deliver a speaker that produced excellent high frequency resolution, midrange smoothness and bass energy with low distortion, resulting in a voicing that is musically and harmonically correct.

A new paper composite cone was chosen, alongside a powerful high flux magnetic circuit using rare earth alloys, and a new voice coil made from lightweight copper-plated aluminum. This new magnetic circuit coupled with the voice coil produces excellent dynamics and transient response, along with a highly refined sense of space, soundstage and image.


Modern Housing Design and Detachable Cables

Honoring the recognizable heritage of the original Signature HP1/2/3 headphone designs but with a modern feel, the housings are individually machined from specially treated aluminum with the product name neatly engraved on the face. The HP100 SE arrives in a stylish space grey finish.

The HP100 SE is the first Grado model to feature detachable cables. A departure from the cable currently employed on the Statement Series, it has been engineered to a softer but durable braided finish, with cable insulation that improves flexibility and decreases the overall weight of the cable.

Terminated with a 6.3mm plug, it connects to each housing via a 4pin mini XLR plug. Additional detachable cable options such as 4pin XLR termination, 4.4mm balanced termination, and various cable lengths, available in the future. This allows for the cable to be changed based on customer needs for source side termination and cable range.


Headband Assembly Re-design

The HP100 SE’s headband assembly has changed from the classic Grado models. Designed for comfort during long listening session, the new headband features 50% more padding than previous Grado designs, with a stainless steel band and height rods that can be adjusted for the perfect fit to minimize listening fatigue.

Grado Labs engraved gimbals are made from an aluminum alloy, and the stainless steel height rod enhances the stability of the point where they meet. The height rod is also designed to not slide out of the junction block if the zinc alloy end caps become dislodged. This mechanism limits housing rotation to 105-degrees to reduce wear and tear.


Hand Assembled in Brooklyn

Founded on a kitchen table in 1953, and working with wood for over a quarter century, Grado Labs has been perfecting the art of sonic reproduction every day since. This HP100 SE has traveled from workbench to workbench until ready for your ears. Every experience since that kitchen table has led to the creation of the HP100 SE.



Specification:

  • Transducer Type: Dynamic
  • Operating Principle: Open Air
  • Frequency Response: 3.5 Hz – 51.5 kHz
  • THD: <0.1% @100dB           
  • SPL 1mW: 117dB
  • Nominal Impedance: 38ohms
  • Driver Size: 52mm
  • Driver Matched dB: .04 dB
  • Cable Type: 12 Conductor detachable
  • Headphone Connection: 4pin Mini XLR
  • Source Connection: 6.3mm
  • G cushions and F style cushions included

Original Hong Kong Authorized Product with 1-Year Warranty.



Grado’s New Signature

Grado’s new Signature HP100 SE headphones are a contemporary homage to the trailblazing high-end HP1 model heralding a new design direction!

World-renowned designer and manufacturer of award-winning headphones, Grado Labs presents its newest and flagship model, the Signature HP100 SE. Grado Labs founder Joseph Grado created what many consider to be the high-end headphone market with the release of the Signature HP1 headphone in the early 1990s. In recognition of Joseph Grado’s 100th birthday and this industry milestone, Grado Labs is producing these Special Edition headphones. “Although Uncle Joe left us 10 years ago, he will always be a presence at Grado Labs”, says Joseph’s nephew and Grado’s CEO, John Grado.

  • NEW 52mm Dynamic Driver
  • Hand machined Aluminum Housing
  • White Stitched Leather Headband
  • Drivers matched to .04dB
  • NEW Detachable 12 Conductor Cable
  • G cushions and F style cushions
  • Hand Assembled in Brooklyn, NY, USA

While the HP100 SE pays homage to Grado’s illustrious past, these headphones are a contemporary version of a true classic, with a new design from the ground up. With newly engineered drivers, the HP100 SE also boasts detachable cables, as well as a fresh headband assembly. This also ushers in a new direction for future Grado headphone releases. As always, the HP100 SE is hand-assembled in its Brooklyn-based headquarters.


NEW Driver Design

At the heart of the HP100 SE is a completely new speaker design. In considering the attributes of a new 52mm driver, Grado’s goal was to deliver a speaker that produced excellent high frequency resolution, midrange smoothness and bass energy with low distortion, resulting in a voicing that is musically and harmonically correct.

A new paper composite cone was chosen, alongside a powerful high flux magnetic circuit using rare earth alloys, and a new voice coil made from lightweight copper-plated aluminum. This new magnetic circuit coupled with the voice coil produces excellent dynamics and transient response, along with a highly refined sense of space, soundstage and image.


Modern Housing Design and Detachable Cables

Honoring the recognizable heritage of the original Signature HP1/2/3 headphone designs but with a modern feel, the housings are individually machined from specially treated aluminum with the product name neatly engraved on the face. The HP100 SE arrives in a stylish space grey finish.

The HP100 SE is the first Grado model to feature detachable cables. A departure from the cable currently employed on the Statement Series, it has been engineered to a softer but durable braided finish, with cable insulation that improves flexibility and decreases the overall weight of the cable.

Terminated with a 6.3mm plug, it connects to each housing via a 4pin mini XLR plug. Additional detachable cable options such as 4pin XLR termination, 4.4mm balanced termination, and various cable lengths, available in the future. This allows for the cable to be changed based on customer needs for source side termination and cable range.


Headband Assembly Re-design

The HP100 SE’s headband assembly has changed from the classic Grado models. Designed for comfort during long listening session, the new headband features 50% more padding than previous Grado designs, with a stainless steel band and height rods that can be adjusted for the perfect fit to minimize listening fatigue.

Grado Labs engraved gimbals are made from an aluminum alloy, and the stainless steel height rod enhances the stability of the point where they meet. The height rod is also designed to not slide out of the junction block if the zinc alloy end caps become dislodged. This mechanism limits housing rotation to 105-degrees to reduce wear and tear.


Hand Assembled in Brooklyn

Founded on a kitchen table in 1953, and working with wood for over a quarter century, Grado Labs has been perfecting the art of sonic reproduction every day since. This HP100 SE has traveled from workbench to workbench until ready for your ears. Every experience since that kitchen table has led to the creation of the HP100 SE.



Specification:

  • Transducer Type: Dynamic
  • Operating Principle: Open Air
  • Frequency Response: 3.5 Hz – 51.5 kHz
  • THD: <0.1% @100dB           
  • SPL 1mW: 117dB
  • Nominal Impedance: 38ohms
  • Driver Size: 52mm
  • Driver Matched dB: .04 dB
  • Cable Type: 12 Conductor detachable
  • Headphone Connection: 4pin Mini XLR
  • Source Connection: 6.3mm
  • G cushions and F style cushions included

Original Hong Kong Authorized Product with 1-Year Warranty.

There is no additional details for this product.

Delivery Options

  • S.F. Express - Office / Home Delivery
  • S.F. Express - EF Locker Pickup
  • S.F. - Business Station
  • S.F. Express - Store Pickup
  • Macau (S.F. Express/Driver delivery)
  • Self Pick-up (Lai Chi Kok)

Payment Options

  • AlipayHK
  • FPS
  • Octopus Card / Octopus Wallet
  • WeChat Pay HK
  • Visa / MasterCard Credit Card
  • UnionPay
  • Apple Pay
  • Payme
  • Bank Transfer/ATM
  • Google Pay
{{'product.product_review.no_review' | translate}}

Related Products