Alesis ADAT HD24 Digital Recorder

by Alesis

Product Features

• 24-track, 24-bit digital audio recording at 48kHz (12 tracks at 96kHz) High sample rates for top-notch audio. Digital: 44.1-96kHz. Upgrade HD24 to 96kHz with the EC-2
• Fully loaded standard connections include 24 analog inputs and outputs (+4dBu, 1/4" TRS), plus 24 channels of ADAT Optical I/O
• Dual recording bays utilize standard low-cost, removable hard drives so media costs don't break the bank
• Instant random access to audio using ADAT/FST(TM) (File Streaming Technology). Hit rewind or fast-forward and you're there in a flash
• Internal editing capabilities include cut, copy, paste, and track-move with undo. Or use the built-in Ethernet port to easily send files to a computer DAW
• 24-track, 24-bit digital audio recording at 48kHz High sample rates for top-notch audio. Digital: 44.1-96kHz. Upgrade HD24 to 96kHz with the EC-2
• Internal editing capabilities include cut, copy, paste, and track-move with undo.
• Or use the built-in Ethernet port to easily send files to a computer DAW
• Instant random access to audio using ADAT/FST(TM). Hit rewind or fast-forward and you're there in a flash
• 24-track, 24-bit digital audio recording at 48kHz (12 tracks at 96kHz) High sample rates for top-notch audio.
• Dual recording bays utilize standard low-cost, removable hard drives so media costs dont break the bank
• Instant random access to audio using ADAT/FST (File Streaming Technology). Hit rewind or fast-forward and youre there in a flash

Product Details

• Product Dimensions: 19 x 17 x 5.1 inches ; 20 pounds
• Shipping Weight: 40 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0002D04GK
• Item model number: ADAT-HD24
• Average Customer Review: 4.5 out of 5 stars  See all reviews (2 customer reviews)
• Amazon Best Sellers Rank: #50,827 in Musical Instruments (See Top 100 in Musical Instruments)
  • #46 in Musical Instruments > Recording Equipment > Multitrack Recorders > Digital

Product Description

Amazon.com Product Description

The Alesis ADAT HD24 24-track hard disk recorder is designed to fit into any ADAT environment and match ADAT's performance and affordability. It packs 24 channels of digital audio I/O into a single-unit recorder that easily fits into any environment. Built exclusively for the purpose of recording music instead of data, the HD24 provides remarkable stability and performance while recording up to 24 tracks of high-resolution 24-bit recording at 44.1 and 48 kHz sample rates.

Two hot-swappable media bays provide convenient access to recording drives and allow data backup in minutes. You can edit tracks internally or easily transfer to computer via an Ethernet connection. And the HD24 features both the user-friendly ADAT Optical and ADAT Sync interfaces, enabling it to work efficiently with existing systems.

The front of the Alesis HD24 (see larger image and learn more about the display).

The back of the HD24 (see larger image).

The HD24 can be upgraded to HR24XR with the user-installable EC2 module option, which replaces the A/D and D/A converters with AKM converters used in the MasterLink. EC2 improves performance at all sample rates and also expands analog and digital-input compatibility to include 88.2 and 96 kHz sample resolutions.

Key Features

• 24-track, 24-bit digital audio recording (12 tracks at 96kHz with EC2 optional upgrade)
• 24 analog inputs (1/4-inch TRS)
• 24 analog outputs (1/4-inch TRS)
• 24-channel ADAT Optical I/O
• Dual recording bays utilize standard, low-cost, removable IDE computer drives
• Instant random access to audio using ADAT/FST (File Streaming Technology).
• Internal editing capabilities include cut, copy, paste, and track-move with undo.
• Multiple units can be synchronized to create a larger system
• Easily integrated into an existing ADAT system
• Ethernet port enables computer connection
• MIDI I/O, MTC out
• ADAT Sync in/out
• Word Clock in

Specifications

Media

• Caddy 1: 40 GB HD
• Caddy 2: empty
• Caddies can be fitted with IDE/EIDE/ATA drive at 5,400/7,200/10,000 RPM up to 2 TB

Track Count

• 24 tracks at 24-bit, 44.1 or 48
• 12 tracks at 88.2 or 96 kHz with optional EC2 upgrade

Connections

• Analog: 24 24-bit inputs, 24 24-bit outputs (1/4-inch TRS, +4dBu)
• Digital: 24-channel I/O via 3 ADAT Optical inputs and 3 ADAT Optical outputs
• Other: MIDI in/out. Alesis Sync in/out (DB-9). Word Clock input (BNC, 75). Footswitch jack for punch in/out (1/4-inch). LRC input for traditional wired remote (1/4-inch). 10 Base-T Ethernet (RJ-45)

Audio Specs

• Frequency response: 20Hz-20kHz +0/-1dB
• Dynamic range: 103dB A/D, >103dB D/A (A-weighted)
• Distortion: less than 0.003% THD+N. Input levels: nominal +4dBu, maximum +19dBu
• Pitch control: +100 cents/-200 cents, min-max 30-50kHz (30-100kHz with version 2.0)

Power & Dimensions

• Power: 90-230V AC, 60W
• Dimensions: 5.09 x 19 x 17 (HxWxD), 3U rackmount
• Weight: 20 pounds

Product Description

Introducing the world's first 24-track, 24-bit/96kHz hard disk recorders designed to fit comfortably into any standard ADAT environment - and match ADAT's legendary performance and affordability. With their patent-pending method of writing to the hard drive, HD24 and HD24XR are the first hard disk recorders built from the ground up exclusively for the purpose of recording music instead of data - resulting in remarkable stability and performance. And yet, thanks to their use of standard, low-cost IDE computer drives, the recording media costs no more than traditional ADAT tape on a per track basis. Two hot-swappable media bays provide convenient access to the recording drives, and allow the user to backup data in just minutes. You can edit tracks internally or easily transfer to computer via built-in Ethernet. They're the only HD recorders on the market with standard ADAT Optical and ADAT Sync, enabling them to work efficiently with existing systems. And they offer the same exceptional user-friendly interface ADAT users have come to expect. Alesis reinvents digital recording. Again.

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful:

4.0 out of 5 stars Solid piece of equipment with some limitations, August 5, 2009

By 

c. bautista "being_and_time" (Honolulu, HI) - See all my reviews

Amazon Verified Purchase

This review is from: Alesis ADAT HD24 Digital Recorder (Electronics)

This recorder has everything I wanted when I did research and purchased it. Moreover, it is well built and does everything I originally expected it to do very well. All I wanted was a multitrack recorder that I could interface with the existing recording/PA equipment I already had. I was using a 2-track digital recorder and soon realized the editing limitations of having only 2-tracks (although I also appreciate the simplicity of it). The Alesis seemed to fit the bill. All my editing is done on a computer, so having these functions on a recorder is superfluous -- the Alesis does not have much editing capability. This recorder only has ADAT and phone outputs, so monitoring back into my analogue mixer is a challenge (need to patch all channels). There are probably more sophisticated multitrack digital recorders out there that may do more, so check carefully if the Alesis is all you need.

5.0 out of 5 stars Great Purchase, September 1, 2007

By 

Marlen Rojas Almeida - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Alesis ADAT HD24 Digital Recorder (Electronics)

This Is A Great Purchase !!! The Front Panel Of This HD24 Is Logically Designed To Manipulate Very Easy And It Have A Lot Of Functions...I Like It Very Much.