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Alesis ADAT HD24

Dolphin id:3129 Product SKU:ADAT HD24

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24-bit, 24-track hard disk recorder with 48kHz converters

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The Alesis HD24 is going to grab the music world by its ears.

Until now, hard disk recording meant using the same technology designed for simple data transfer without addressing the needs unique to recording music. The random method of hard drive reading and writing resulted in slower search time, problems with tracking, disk fragmentation and high cost.

Not anymore.

Alesis' proprietary, patent-pending method of sequentially writing to the hard drive virtually eliminates the tracking errors and random-access delay that plagues all other manufacturers? hard disk recorders. The Alesis HD24 offers greater stability with virtually no fragmentation, and almost instantaneous response and seek time.


  • 24-track, 24-bit digital audio recording
  • 44.1 kHz and 48 kHz internal sample rates, slaves to external word clock, with 96 kHz and 88.2 kHz option
  • Dual recording bays utilizing standard low-cost, removable IDE computer drives
  • Internal editing capabilities including cut, copy, paste and track-move editing with undo
  • Multiple units can be synchronized to create larger system, and can be easily integrated into existing ADAT systems.
  • 24 analog inputs and outputs, 3x8 channels, ADAT Optical In/Out
  • MIDI In/Out, MTC Out, 10 base-T Ethernet connection, ADAT Sync In/Out, and Word Clock In.
  • All necessary hardware and connectors included
  • Comes standard with Alesis LRC remote control

Fits Easily Into Any ADAT System

The Alesis HD24 comes complete with 24 channels of ADAT Optical digital In/Out and ADAT 9-Pin sync to fit easily into any existing ADAT system. And thanks to the familiar ADAT interface, it?s easy to navigate the controls of the HD24 right out of the box. It doesn?t just work with your existing ADATs, it is an ADAT. The first ADAT to record to hard disk instead of tape.

Studio Friendly and Ready to Record

With 24 channels of analog and digital I/O connectors included, the Alesis HD24 easily adapts to virtually any mixing or recording setup. With MIDI In/Out and MIDI Time Code Out you can sync to sequencers or slave to an external word clock. And for a larger recording system up to 16 units can be ?stacked? to provide an almost limitless number of recordable tracks. The Alesis HD24 truly is an exceptional, studio friendly all-purpose hard disk recorder.

Easy to Exchange Media

Two hot-swappable media bays not only allow you to instantly reload hard disks, but also quickly back up your data without having to use an external drive-letting you get on ith your session in record time. You get 90 continuous minutes of high-resolution 24-track recording on standard, low-cost 20 gig IDE computer disks. The result is a per-track cost virtually identical to that of using traditional ADAT tape. And portability has never been easier. Just pull out the easily removable hard disk, put it in provided shock-protective case and you?re on your way.

Creative Control

Editing can be done from the frnt panel, by remote or with PC-based DAW by transferring audio via the Alesis HD24?s Ethernet port. Exported tracks can even be emailed for further editing.

The HD24 comes equipped with an LRC (Little Remote Control) which operates basic transport and locate functions. The optional MRC Control will also feature audio scrub wheel, track arming, full metering and editing functions. And of course the HD24 is fully compatible with existing BRCs and other ADAT sychronizers/controllers already in use in many ADAT studios.

Alesis ADAT HD24. The new state-of-the-art in affordable digital recording systems.

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Alesis ADAT HD24 Reviews


Alesis ADAT HD24

After my first month's use I am still astounded at both the quality and simplicity of the HD24. It is the only recorder I have ever used that can be run 'straight from the box' without needing to read the manual first! It is a true 'plug 'n' play' device which has logical screen information for basic use and simple instructions for more in-depth editing. If you can use a cassette deck, you can use a HD24! I can't heap enough praise on this machine - I love it. Alesis have managed to create something where for once, technology doesn't dominate artistry and leaves you free to be creative - well done. I thought the HD24 was outside my budget, but Dolphin's price put it in the same bracket as some digital multitrack workstations, and beleive me, there is no comparison. Thanks Dolphin.

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