Apogee GROOVE + Grado SR325E

Prestige Series On-Ear Headphones and Portable USB DAC, Headphone Amplifier for Mac, PC

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Grado SR325e Prestige Series On-Ear Headphones

The Grado SR325e Prestige Series on-ear headphones were engineered for outstanding sound performance. These sleek, retro aluminum headphones feature improved driver and cable designs which produce the kind of high impact sound that Grado is known for. An added benefit of the metal housing of the Grado SR325e headphones is that the added mass minimizes all unwanted transient distortions. The vented earcup design of the SR325e's provides powerful, extended low frequency response and an incredibly spacious soundstage. Internally, the aluminum air chambers, ultra-high purity copper voice coil and hybrid metal/plastic enclosures produce extremely clear, detailed highs. Further complementing Grado's world renowned midrange sound is the new 8 conductor cable designed to give greater control and stability of the upper and lower range of the frequency spectrum.

Made in the USA

Every pair of Grado SR325e headphones are built in Brooklyn, New York and feature over-sized plush ear cushions which increase airflow through the improved rear metal screens, further improving the soundstage.The genuine top-grain leather padded head-strap is Brylcreem resistant and fully adjustable for a customized, comfortable fit. The SR325e will produce a sound that is pure Grado, with warm harmonic colors, rich full bodied vocals, excellent dynamics, and an ultra-smooth top end.

The Apogee Groove Headphone Amplifier Offers an Incredible Listening Experience

Hear Every Detail In Stunning Clarity and Fidelity

Whether you're building your FLAC file collection or subscribing to a premium music streaming service, you are investing in a higher quality listening experience. Groove unlocks the full potential of that experience, revealing definition, clarity and details like you have never heard before.

The Apogee Groove Headphone Amplifier Offers an Incredible Listening Experience

Hear every detail of your music with outstanding sound quality anywhere and anytime, with the Apogee Groove portable USB DAC and headphone amp. Loaded with an ESS Sabre digital-to-analog converter and up to 24-bit/192kHz resolution, the Groove interface is the perfect solution for critical listening on your laptop. Sweetwater's Sales Engineers have recommended Apogee's portable interfaces for years as solid solutions for high-quality portable monitoring, and the ultra-compact Apogee Groove brings you stellar D/A conversion and USB convenience in the most portable design yet.

When you Need Stellar Sound, but don't Need a Full Audio Interface

The Apogee Groove Headphone Amplifier Offers an Incredible Listening Experience

Whether you're producing tracks in a hotel room on your laptop, auditioning a mix away from your studio, or any other situation that requires high-quality audio playback, you'll be well served with the Apogee Groove portable USB DAC and headphone amplifier. You get some of Apogee's best-sounding conversion with the simplicity of two buttons for volume control. And because it's powered via USB, just keep the Apogee Groove in your laptop bag and you'll always have studio-quality headphone monitoring within reach.

Apogee Groove

24-bit 192 kHz USB DAC and Headphone Amplifier for Mac and PC
Quantity: 1

General Features:

  • Portable USB DAC and Headphone Amplifier for Mac and PC
  • USB 2.0 connection to Mac and PC
  • Up to 24 bit / 192kHz audio
  • ESS Sabre DAC
  • Enhances your iTunes, Pandora, Spotify, Tidal or other music listening experience
  • Constant Current Drive provides smooth frequency response with any headphones
  • Quad Sum DAC, 4 DACs per channel for highest dynamic range and lowest distortion
  • Asynchronous clocking
  • Multi-color LEDs for status and level indication
  • Powered by USB
  • Top panel buttons for adjusting volume level
  • Built in the USA
  • Dimensions: 3.75"W x 1.8"D x 0.62"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

What's in the Box?

  • Groove
  • USB Cable (1 ft)
  • Carrying pouch
  • Product booklet (Quick Start Guide, Warranty Information)
  • Instructions for download of software and complete documentation

Grado SR325e

Prestige Series Wired On-Ear Headphones w/ Premium Aluminum Housing
Quantity: 1

General Features:

  • Wired Prestige Series On-Ear Headphones
  • Dynamic driver transducer with open air operation
  • Vented diaphragm and non-resonant air chamber for greater sound detail
  • Powder coated aluminum enclosures for enhanced audio reproduction
  • Specially designed vented diaphragms provide a natural sound and extended bass response
  • Drivers precisely matched to within 0.05dB for improved stereo imaging
  • Ultra-High Purity Long-Crystal Copper voice coil wire
  • High-quality 8-conductor cable for improved control of upper and lower frequencies
  • Adjustable headband for comfortable listening sessions
  • Primary Color: Silver
  • Accent Colors: Black
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Frequency Response: 18-24,000 Hz
  • Sensitivity: 99.8dB
  • Nominal Impedance: 32 Ohms
  • Cable:
    • Detachable: No
  • Plug Size: 3.5mm
  • 1/4" Adapter Plug included

What's in the Box?

  • Grado SR325e Headphones
  • 1/4" Adapter Plug
  • Grado Story Sheet
  • User Guide

Headphone Amplifier Specifications

Digital-to-Analog Converter (DAC)
A Digital-to-Analog converter (also known as a DAC) converts a digital audio signal into an analog signal. This is especially helpful for listen to music from digital sources, such as iPods and smart phones.
Frequency Response
The range of frequencies the amplifier will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
10 - 20,000 Hz
Input Connection
This is the manner in which the headphone amplifiers receive an input audio signal.
Output Connection
This is the manner in which the headphone amplifier will output the audio signal.
3.5mm Mini-Jack
Number of Outputs
Some headphone amplifiers have a built-in splitter so multiple pairs of headphones can be connected to it. The number specified here is the number of headphones that can be connected to the amplifier.

DAC Specifications

Sample Rate
24-bit at 192 kHz

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Apogee GROOVE + Grado SR325E

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Apogee GROOVE + Grado SR325E

Prestige Series On-Ear Headphones and Portable USB DAC, Headphone Amplifier for Mac, PC


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