Item #: ALE ADATHD24 LIST

Alesis ADAT HD24 Multitrack Digital Recorder

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Product Description

The Alesis ADAT HD24 is the first 24-track, 24-bit/96kHz hard disk recorder designed to work comfortably within the standard ADAT environment. The HD24 was designed from the ground up, exclusively for the purpose of recording music. This results in remarkable stability and high-quality performance that you come to expect from the name Alesis.

This remarkable hard disk recorder uses low-cost, dual removable IDE computer drives as it's recording medium. The included 40GB drive provides 180 minutes of 24-track record time at 24-bit.

The ADAT HD24 includes the features that you would expect to find on a hard disk recorder, such as cut, copy, paste and track-move editing with undo capabilities. 24 analog inputs and outputs are available along with three ADAT optical I/O's for 24 channels of digital ins and outs.

Up to 24 tracks may be recorded simultaneously - even from the analog inputs. Multiple units may be synchronized to create larger systems. The ADAT HD24 can also be easily integrated into existing ADAT systems. The HD24 comes standard with the Alesis LRC remote control.

The ADAT HD24, the first hard-disk recorder worthy of the name ADAT!

Alesis ADAT HD24
The First Hard Disk Recorder Worthy of the Name ADAT.

Presenting the new state-of-the-art in digital recording systems. With 24 tracks. Two hot-swappable bays. Built-in computer interface. Resolution up to 24-bit/96kHz. And offering incredible performance and stability, thanks to their unique method of writing to the hard drive. Designed and built exclusively for recording music- not data. Yet, with an exceptionally low media cost with standard, affordable IDE drives. HD24 is the first hard disk recorder to match ADAT's legendary performance and affordability. And fit into any existing ADAT system.

Alesis ADAT HD24 Features

  • 24-track, 24-bit, digital audio recording
  • 44.1kHz & 48kHz internal sample rates
  • MEDIA: 2 Caddys
    • 1 with installed 40GB HD
    • 1 empty which can contain IDE/EIDE/ATA Drive of 5400/7200/ 10000 RPM up to 2000GB
  • Can easily be integrated into any existing ADAT system
  • 24 analog inputs and outputs (+4dbu, 1/4 inch TRS), 24 channels of ADAT Optical I/O
  • MIDI I/O, MTC O, ethernet connection, ADAT Sync I/O
  • Internal editing capabilities including cut, copy & paste
  • Exceptionally affordable, with unique industrial design
  • All necessary hardware and connectors included
  • Comes standard with Alesis LRC remote control
Presenting the first 24-track hard disk recorder with ADAT's legendary ease of use, quality and affordability - the ADAT HD24. Not only the next evolution of ADAT, it’s the future of recording.

Built to Overcome the Obstacles That Plague Other Hard Disk Recorders
Until now, hard disk recorders meant using the same technology designed for simple data transfer - such as work processing and spreadsheets - 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 HJD24 offers greater stability with virtually no fragmentation, and almost instantaneous response and seek time.

Fits Easily Into Any ADAT System
The 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 HD24 easily adapts to virtually any mixing or recording setup. With MIDI In/Out and MIDI Time Code Out you can easily sync to sequencers or slave to an external work clock. And for a larger recording system, up to 16 units can be stacked to provide an almost limitless number of recordable tracks. The HD24 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 with your session in record time. You get 180 continuous minutes of high-resolution 24-track recording on standard, low-cost 40-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.

High-resolution audio recording - up to 24-bit/96kHz - has never been easier. Or more affordable.

Creative Control Is at Your Fingertips
Editing can be done from the front panel, by remote or with PC-based DAW by transferring audio via the HD24's Ethernet port. Exported tracks can even be emailed across town - or around the world - for further editing or recording.

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

We Have Seen the Future. And It Is the Alesis ADAT HD24.
Alesis is taking the world of hard disk recording into the next realm - and raising the bar for the entire industry - with breakthrough, cutting-edge hard drive technology and amazing affordability. Full-featured and adaptable to any recording environment - with the remarkable ease-of-use ADAT users have come to expect.

Product Specifications

Alesis ADAT HD24 Specifications

    Media
  • 2 caddys:

  • 1 with installed 40GB HD
    1 empty which can contain IDE/EIDE/ATA Drive of 5400/7200/ 10000 RPM up to 2000GB
    Track Count
  • 24 tracks at 24-bit/48kHz
  • 12 tracks at 24-bit/96kHz.
    Sample Rates
  • Digital: 44.1-96kHz.
  • Analog: 44.1-48kHz (HD24).
  • Upgrade HD24 to 96kHz with the EC-2.
    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: <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 (H x W x D): 5.09 x 19 x 17 inches (127 x 483 x 432 mm), 3U rackmount
  • Weight: 20lbs (9.07kg).
    Recording Time with Optional 20-Gig Drive
  • At 48kHz
    • 2 Tracks: 18.2 Hours
    • 6 Tracks: 6 Hours
    • 8 Tracks: 4.5 Hours
    • 16 Tracks: 2.2 Hours
    • 24 Tracks: 1.5 Hours
  • At 44.1kHz
    • 2 Tracks: 19.9 Hours
    • 6 Tracks: 6.6 Hours
    • 8 Tracks: 4.9 Hours
    • 16 Tracks: 2.4 Hours
    • 24 Tracks: 1.6 Hours
  • At 88.2kHz
    • 2 Tracks: 10.3 Hours
    • 6 Tracks: 6.4 Hours
    • 8 Tracks: 2.5 Hours
    • 12 Tracks: 1.7 Hours
  • At 96kHz
    • 2 Tracks: 9.5 Hours
    • 6 Tracks: 3.1 Hours
    • 8 Tracks: 2.3 Hours
    • 12 Tracks: 1.5 Hours
    Recording Time with 40-Gig Drive
  • At 48kHz
    • 2 Tracks: 36.4 Hours
    • 6 Tracks: 12 Hours
    • 8 Tracks: 9 Hours
    • 16 Tracks: 4.4 Hours
    • 24 Tracks: 3 Hours
  • At 44.1kHz
    • 2 Tracks: 39.8 Hours
    • 6 Tracks: 13.2 Hours
    • 8 Tracks: 9.8 Hours
    • 16 Tracks: 4.8 Hours
    • 24 Tracks: 3.2 Hours
  • At 88.2kHz
    • 2 Tracks: 20.6 Hours
    • 6 Tracks: 12.8 Hours
    • 8 Tracks: 5 Hours
    • 12 Tracks: 3.4 Hours
  • At 96kHz
    • 2 Tracks: 19 Hours
    • 6 Tracks: 6.2 Hours
    • 8 Tracks: 4.6 Hours
    • 12 Tracks: 3 Hours
    Recording Time with Optional 60-Gig Drive
  • At 48kHz
    • 2 Tracks: 54.6 Hours
    • 6 Tracks: 18 Hours
    • 8 Tracks: 13.5 Hours
    • 16 Tracks: 6.6 Hours
    • 24 Tracks: 4.5 Hours
  • At 44.1kHz
    • 2 Tracks: 59.7 Hours
    • 6 Tracks: 19.8 Hours
    • 8 Tracks: 14.7 Hours
    • 16 Tracks: 7.2 Hours
    • 24 Tracks: 4.8 Hours
  • At 88.2kHz
    • 2 Tracks: 30.9 Hours
    • 6 Tracks: 19.2 Hours
    • 8 Tracks: 7.5 Hours
    • 12 Tracks: 5.1 Hours
  • At 96kHz
    • 2 Tracks: 28.5 Hours
    • 6 Tracks: 9.3 Hours
    • 8 Tracks: 6.9 Hours
    • 12 Tracks: 4.5 Hours
    Recording Time with Optional 80-Gig Drive
  • At 48kHz
    • 2 Tracks: 72.8 Hours
    • 6 Tracks: 24 Hours
    • 8 Tracks: 18 Hours
    • 16 Tracks: 8.8 Hours
    • 24 Tracks: 6 Hours
  • At 44.1kHz
    • 2 Tracks: 79.6 Hours
    • 6 Tracks: 26.4 Hours
    • 8 Tracks: 19.6 Hours
    • 16 Tracks: 9.6 Hours
    • 24 Tracks: 6.4 Hours
  • At 88.2kHz
    • 2 Tracks: 41.2 Hours
    • 6 Tracks: 25.6 Hours
    • 8 Tracks: 10 Hours
    • 12 Tracks: 6.8 Hours
  • At 96kHz
    • 2 Tracks: 38 Hours
    • 6 Tracks: 12.4 Hours
    • 8 Tracks: 9.2 Hours
    • 12 Tracks: 6 Hours
    Recording Time with Optional 100-Gig Drive
  • At 48kHz
    • 2 Tracks: 91 Hours
    • 6 Tracks: 30 Hours
    • 8 Tracks: 22.5 Hours
    • 16 Tracks: 11 Hours
    • 24 Tracks: 7.5 Hours
  • At 44.1kHz
    • 2 Tracks: 99.5 Hours
    • 6 Tracks: 33 Hours
    • 8 Tracks: 24.5 Hours
    • 16 Tracks: 12 Hours
    • 24 Tracks: 8 Hours
  • At 88.2kHz
    • 2 Tracks: 51.5 Hours
    • 6 Tracks: 32 Hours
    • 8 Tracks: 12.5 Hours
    • 12 Tracks: 8.5 Hours
  • At 96kHz
    • 2 Tracks: 47.5 Hours
    • 6 Tracks: 15.5 Hours
    • 8 Tracks: 11.5 Hours
    • 12 Tracks: 7.5 Hours



Helpful Info about the Manufacturer
Phone:  401-658-5760 Warranty:  1 Year
Jimmy B. from Pittsfield, Ma. 01201, studio4recording@hotmail.com Submitted: 9/8/2009
Product Rating

Subject
THE HD 24 BY ALESIS, BIG BANG FOR THE BUCK!!!
Product Rating
BEING OUT ON THE ROAD WITH THESE I WOULD SAY THEY ARE BUILT LIKE LITTLE TANKS.. NEVER HAD A PROBLEM IN SEVERAL YEARS.
LOTS OF GOOD STUFF HERE. ETHERNET PORT MAKES IT POSSIBLE TO RECORD A SESSION, OR ADD AND DUBB FROM THOUSANDS OF MILES AWAY. ALL ON TIME AND IN SYNC. VERY EASY TO TAKE DOWN TRACKS.EASY AND QUICK TO BOUNCE FROM ADAT TO COMPUTER. WORKS WELL WITH SONAR AND PRO TOOLS.. THE FIREPORT EXCESORY, 1394 ALSO WORKS WELL!!
SIMPLE TO USE..TAKE A SECOND AND BROWSE THE MANUAL, THERE ARE A FEW SHORT-CUTS THAT MAY SAVE YOU SOME TIME!
OF COURSE, DEPENDING ON WHATEVER PRE'S YOUR USING, THE UNIT IS QUITE CLEAN AND QUIET, AND VERY FLAT. WHAT YOU PUT IN IS EXACTLY WHAT COMES OUT.
I HAVE HAD SEVERAL OF THESE MACHINES AND HAVE NEVER HAD A PROBLEM WITH THEM. THEY EVEN SYNC. UP TO THE OLD XT AND LX 8-TRK MACHINES.
Your general opinion of this product.
THE HD 24 IS A BIG BANG FOR THE BUCK! MAKES RECORDING AND EDITING A FAIRLY SIMPLE PROCESS. JUST PLUG IT IN AND GO!
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P. Engisch from Williston, VT USA Submitted: 1/19/2009
Product Rating

Subject
My solution for remotes
So far, so good, solid....had M20's for years....still love them, built like a tank...but the hd24 is the perfect solution to have a dedicated hard drive recorder - I do not want to rely on a laptop. I dump it into SONAR via firewire and I'm off and running for mixing and editing....
24 tracks of 24/48 in one box is the seller...and the converters are quite good in these units...big bang for the buck. A regular 'exit' button would have been nice and not having to reset the rec track buttons after stopping in song mode would have made sense....but small gripes really...
You can get up and running on this unit in no time....manual is OK...but read it, there are good tips to be aware of for smooth sailing.
Sonically its great....just make sure your source is top notch to begin with because garbage in, garbage out !
verdict is still out, but I expect it will be reliable....the M20's were....
Your general opinion of this product.
The right box for me....I have great mixers/pres/cables/mics etc...so I didn't need all the bells and whistles of another unit. I'm happy with the purchase. IDE drives are sooo cheap now. Stock up on them!
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Larz Hanson from Cleveland, TN, detourdj@gmail.com Submitted: 2/5/2008
Product Rating

Subject
One of the best pieces of gear I own!
Your general opinion of this product.


QUALITY:
I've read other reviews here saying things about troubles other owners are having. That concerns me since I've not had one single problem with my HD24. I've owned mine for over two years now, using it in loud, live shows and quiet mobile sessions alike, without a bit of trouble. Personally, I'm tickled that the HD24 uses standard IDE drives...I've bought an 80GB Maxtor to go along with the stock 40GB and installation/use have been easy.

FEATURES:
It has lots of features, but I wish Alesis could have included a keyboard port for quicker & easier text entry. This is a minor complaint though. One thing that easily swayed my decision to buy was the inclusion of 24 channels of analog I/O, since my main objective was to interface this with my Mackie SR24-4 board at live shows. Another nice item is the operating level: +4dB equals mid-scale on the meters...perfect for matching up with the Mackie (older ADATs used the consumer-grade -10dB as a refere
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larry s from moulton al Submitted: 2/5/2008
Product Rating

Subject
Essential for my studio
Your general opinion of this product.


QUALITY:
had it for over a year, and it's never missed a lick

EASE OF USE:
similar to using a VCR

VALUE:
not a bad deal but maybe a little pricy

SOUND:
superior sound
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AMS Customer from USA Submitted: 2/5/2008
Product Rating

Subject
Nice unit.
Your general opinion of this product.
I like the fact that you can use any consumer hard drive for the media. Not locked into mackie media or tascams. So cost to operate is much lower also you can swap hard drives on the fly. very nice for production work. The 10kb/s is a real drawback though when transfering tracks to a computer.
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AMS Customer from USA Submitted: 2/5/2008
Product Rating

Subject
Bulletproof HD24
Your general opinion of this product.


QUALITY:
First of all, this unit is unbeatable, excepting a few minor problems. IDE drives pack it in when you least expect it (read : the minute a live venue recording is about to take place). Controls are a bit flimsy, and they need to get the MRC remote on the shelves ASAP. I took it on a 3 week international tour to Europe, and it only faultered twice due to the hard drives, vibration & venue blackouts! Build of the unit is very sturdy however, and didn't fall apart in transit like my Fostex D160

FEATURES:
Has a 10mpbs LAN port which is good, but get the external firewire Fireport if you want super fast transfer to your PC. An inbuilt Firewire port with the ability to cut and paste from your PC without removing the hard drives would be a god-send.

EASE OF USE:
Difficult only due to the small buttons on the front panel. Once again, the MRC would solve this.

VALUE:
24 tracks at half the cost of one original 8-Trac
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AMS Customer from USA Submitted: 2/5/2008
Product Rating

Subject
Sounds good, hate the menus/buttons
Your general opinion of this product.
Don't put it too far away from you. Arming buttons are TINY. FTP server feature is swell! Unit sounds great. Will withhold final judgement on reliability for a while. Last ADATs purchased had major problems under 100 hours! Cheaper to upgrade than repair. No problems yet. Adore no more rewind time. Transport controls work as fast as I can. Dislike having to navigate the menus. Song naming is a giant step backward in time. No confirmation message after copying drive one to drive two. Manual says song capacity 64 per drive, locate points are 24 per song! I will never put 64 songs on a drive, simply because of the risk and lack of specific purpose per drive. The math indicates for me this is a non-issue. Have not been able to get D8b to arm/disarm tracks yet. Did set everybody's ID to 0. Will figure out... Also, Cool Edit has a switch to save non-audio information. That prevents putting files back via FTP after editing. Overall, replacing three crap ADATs with one u
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AMS Customer from USA Submitted: 2/5/2008
Product Rating

Subject
Easy to use, great value.
Your general opinion of this product.


QUALITY:
I have no complaints with the quality. Everything was there and in perfect shape.

FEATURES:
I love the swappable hard drives. You can get a 40 gig for $40.00 and have over 2 hours of record time. I had 2 of them stores on top of my refrigerator over Christmas, and my (short) wife didnt see them. She pushed them off onto the floor. It trashed one and the other still worked. I replaced it for $40. I like the 1/4" jacks, but balanced would have been better. The firewire interface to the computer is great. I tried the ethernet first, but a 20 minute project took hours to transfer. Only a few minutes over firewire and no FTP software needed.

EASE OF USE:
It is simple to use. I don't like the copy procedure, though. It is limited on how much can transfer at once. I don't use the fancy stuff - just record (several sessions if needed for more instruments, voices) and either mix down on-the-fly through a mixer, or dum
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AMS Customer from USA Submitted: 2/5/2008
Product Rating

Subject
I would buy it again...and again
Your general opinion of this product.
If you need a computer/editor built in, because you don't have a PC/Mac, then buy the Tascam unit or Mackie HDR24/96. If on the other hand you own a PC such as myself and can do your editing on it, and your in need of a no bull, bulletproof proven(adat) RECORDER, then this is your baby. Let me re-emphasize for any one that might be new to all this. This is a recorder only. I have a seperate mixer and mastering deck. Editing is done on a need to only basis as stated previously. You would get this unit off me by prying it from my cold dead hands!
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Lloyd from Toronto, Ontario,Canada Submitted: 2/5/2008
Product Rating

Subject
Excellent product!
Your general opinion of this product.


FEATURES:
Everything you need. Wish it came in 32 track format though.

EASE OF USE:
Very easy to use. Just read the manual and record and edit, even with no prior experience.

VALUE:
Excellent value.

SOUND:
Amazing sound. You can't beat 24 bit sound. This unit far exceeds the sound of a standard c.d.! It's too bad c.d. redbook format is still only 16 bit, 44.1 KHz. sample rate after all these years. Someone's been asleep at the switch!
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