ART Pro Audio

TubeOpto 8 Eight-Channel Studio A/D Input/Output Expander

SKU: # 317567   |   Model: # TUBEOPTO8   |    Product Reviews4 Reviews  Write a Review

TubeOpto 8 Eight-Channel Studio A/D Input/Output Expander

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TubeOpto 8 Eight-Channel Studio A/D Input/Output Expander
TubeOpto 8 Eight-Channel Studio A/D Input/Output Expander
TubeOpto 8 Eight-Channel Studio A/D Input/Output Expander

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The ART TubeOpto 8 is the ideal Eight Channel input / output expander for any ADAT lightpipe equipped audio interface, direct-to-disc recorder or DAW. Eight high quality second generation discrete Class-A vacuum tube microphone preamps are packaged in a single rack space unit with eight channel 24-bit digital I/O.

Every input on the TubeOpto8 offers full control of the signal path with pad, phase and low frequency roll-off switches. Input gain and variable output level control of each channel allows up to 70dB of clean gain with incredible sonic transparency or for the tube stage to be dialed in for warming effects and soft clipping. Each channel has wide range LED meters monitor the preamp output levels while clip indicators monitor mic-preamp peak levels.

ADAT lightpipe I/O handles eight channels of 24-bit audio input and output at either 44.1 or 48 kHz sample rates. Wordclock in and thru-puts allow multiple Tubeopto8's to be synced in complex system configurations.

Features:

  • Eight fully featured Class-A tube mic preamps

  • Eight channels of ADAT lightpipe digital 24 bit audio I/O at 44.1 or 48kHz

  • Input gain and output level controls on every channel

  • Input Pad, Phase flip and Low frequency roll off switches on every channel

  • Two additional front mounted high impedance instrument line inputs

  • Eight 1/4-inch TRS balanced outputs

Specifications:

Input Impedance
• Mic: 6.4K Ohm
• Line: 0.20K Ohm
• Instrument: 2.5M Ohm

Output Impedance
• Balanced outputs: 200 Ohm balanced

Frequency Response
• Analog in to Digital out: 12Hz - 20KHz +0, -1dB @ 44.1 KHz samplerate

THD
• 1KHz: < .015% @ -30dB ref clipping
• 20-20KHz: < .033%

• HPF: 80Hz, 1-pole

Equivalent Input Noise
• Mic/Line: -130dBu, Input shorted, Max gain, A wtd.
• Instrument: -105dBu, Input shorted, Max gain, A wtd.

Maximum Input Level
• Mic/line: +18dBu balanced w/Pad
• Instrument: +15dBu
• Meter clip light: -2dB ref. A/D clip (0dB FS)

Maximum Gain
• Mic: 64dB
• Instrument: 36dB

• Maximum Output level
• Balanced: +20dBu
• Unbalanced: +14dBu
• Output level switch: Lowers Max.Output by 10dB @ -10dBV setting

• Wordclock Range: 40KHz - 52KHz

Sample Rate Settings: 44.1K Hz, 48KHz, ADAT, Wordclock
*A/D Dynamic Range: 105dB (A wtd.)
*D/A Dynamic Range: 105dB (A wtd.)
• A/D Latency: 0.667ms(48KHz), 0.725ms(44.1KHz), 32 samples
• D/A Latency: 0.458ms(48KHz), 0.500ms(44.1KHz), 22 samples

Dimensions: 1.75H x 19.0W x 14.4D (44.5mm x 482.6mm x 365.8mm)
Weight: 13.2 lbs. (6kg)

Power Requirements: USA 105-125VAC, AC 60Hz, 29Watts typical

Minimum System Requirements: ADAT interface port

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There are currently no questions for this product.

Reviews


52.55.214.236
claudebot
Top Tier 0 of 0 customers found this review helpful
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Product Experience   I own it
Closest Store   Toronto (Danforth), Ontario
Bought this as I needed an additional 8io for my setup, and this has been terrific. The preamps when not pushed and the converters sound better than those in my scarlet 18i20 2nd gen.
The tubes don't take getting overdriven particularly well, but ART made it incredibly easy to swap out the tubes and put any other 12ax7 in there. Unlike many other cheap tube preamps, the tubes aren't just a gimmick here, and once replaced these pres can hold their own against ones that cost 10x what this does, and you get 8 of them!
Posted by Rob on Jan 8, 2023
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Great unit! 3 of 3 customers found this review helpful
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Product Experience   I own it
Closest Store   Ottawa, Ontario
Got this for tracking drums too. Some of my mics were running really hot, so the pads and the output level are really good features. Sounds clean and doesn't add a load of color. Happy I got it. Would recommend to anyone looking for an affordable preamp with good build quality.
Posted by anonymous on Dec 4, 2015
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Great Budget Preamp 2 of 2 customers found this review helpful
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Product Experience   I own it
Closest Store   Summerside, Prince Edward Island
Got this for tracking drums and limited rack space... absolutely great piece of gear. Loads of options. Very clean sounding. No real colour, but for the price, can't complain. Well worth the money!
Posted by Brent on Dec 16, 2014
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Looks Good, Sounds Good, Priced Good 2 of 2 customers found this review helpful
Features  
Quality  
Value  
Overall  
Product Experience   I own it
Closest Store   Mississauga, Ontario
Great unit, very well built, the only "cheap" part of it are knobs. They feel horrible and not smooth at all, however there's a fix for it. Ordering new knobs f.e. SSL style will fix it. Other than that everything else is great.
Posted by Dot on Sep 3, 2012
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Rental rates


This product is normally available for rental. Please contact your preferred location for further information.

1 Day from $12.00

1 Week $23.00

1 Month $45.00

Performance Warranty Banner

Protect your investment with the Long & McQuade Performance Warranty

A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.

Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.

How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
  • Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
  • Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
  • No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
  • Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
  • Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
  • Loaners Available: A loaner product may be given while the product is being repaired.
  • Power Surge Protection: Your product is covered even if damaged from a power surge.
  • Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
  • Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.
 

Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.

Purchasing additional years of coverage

Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.

If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:

  • NEW products: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.
  • USED products: 4% of the current new selling price to increase the warranty from 3 months to 1 year. 4% for each additional year.
  • GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
  • BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.