SKU: 84039513623

Union Tube & Transistor Lab Compressor *Beancounter Edition*

Sale price$105.75 Regular price$117.50
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Description

Union Tube & Transistor Lab Compressor *Beancounter Edition*Maker: Union Tube & Transistor Model: Lab Compressor Condition: New Description: The LAB is an optical compressor. It uses custom optocouplers to achieve up to 30dB of musical sounding compression. We loved how in the recording studio even with tons of compression the old optical compressors such as the LA 2A, the LA 3, the LA 4 sounded smooth and natural. The essence of the LAB's sound comes from the fast attack and slow release times of the custom

Maker: Union Tube & Transistor

Model: Lab Compressor

Condition: New 

 

Description:  

The LAB is an optical compressor. It uses custom optocouplers to achieve up to 30dB of musical-sounding compression.

We loved how in the recording studio even with tons of compression the old optical compressors such as the LA-2A, the LA-3, the LA-4 sounded smooth and natural.

The essence of the LAB's sound comes from the fast attack and slow release times of the custom optocoupler. The optocoupler's behaviour is quite complex, and program-dependent. It can't be modelled with simple resistor-capacitor networks. We wanted the pure response of the optocoupler to define the LAB's dynamics, and not supplement that with RC filtering.

To that end, we tried out just about every off-the-shelf optocoupler on the market, but ended up designing and manufacturing our own custom units. There's an interplay between dynamics, noise floor, distortion, and available compression on the one hand, and the opto's electrical parameters on the other. Since nothing commercially available fit the bill, we built our own.

With just two controls – compression and gain make-up – the LAB is fast and simple to use. It sounds great on bass and electric guitar, and the noise floor is impressive – quiet enough for studio use. It really shines on acoustic guitar, vocals and drums.

 

LAB Optical Compressor Specifications

Power Requirements +9VDC @40mA

Input Impedance 1MΩ

Output Impedance 100Ω

Frequency Response 20Hz–20KHz ±0.1dB

Maximum Input Level +7.5dBu

Maximum Output Level +10.0dBu

Compression/Gain-makeup 30dB

Noise Figure (Rs=10K) 3dB

For studio use you will need to attenuate going in and boost coming out of the LAB.

 

The Bean Counter version of the LAB has a non-colour changing LED and no special packaging.





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Exchange/Return Notes
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SKU: 84039513623

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4.5 ★★★★★
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Kendra
West Palm Beach, US
★★★★★ 2
Flimsy rope
Size: Large
This was definitely not sturdy enough for a large dog "up to 80 lbs" as stated. My 7 month old Shepherd puppy shredded the rope part in about 5 minutes. The chew stick is a hit but very small. Flimsy for the cost!
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Reviewed in the United States on September 17, 2025
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DJ
Waukegan, US
★★★★★ 3
Fast Chew
Size: Medium
Didn’t last as long as I expected. My Frenchie chewed through it in record time. I will purchase another one to see if it’s the same as the one I received.
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Reviewed in the United States on September 28, 2025
K
Verified Purchase
Kidzmomma
Cuba, US
★★★★★ 5
Great for chewers
Size: Large
I have bought these for the dogs (GSD/Husky/Golden) 4 mon-7yrs. All 4 dogs enjoy them and keeps the 2 puppies from chewing things they should not. Definitely worth the money for how long they have lasted as well. Have already ordered more.
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Reviewed in the United States on October 4, 2025
G
Verified Purchase
ginger
Louisville, US
★★★★★ 1
Not as safe as it seems
Size: Xtra Large
I did like the look and sound of the all natural wood and coconut rope. However after 15 minutes of giving it to my dog there were rope fibers everywhere. Even though my research said coconut rope was ok for dogs in small amounts; my dog started throwing up. My cat also managed to get ahold of some of the strings and ended up choking. Even when I took the rope off and gave just the coffee wood stick; after just a few minutes of play my dog began coughing. This is just the experience that I had. All dogs are different. Just please don’t let your best friend play with it unsupervised
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Reviewed in the United States on February 3, 2025
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Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Do research
Size: Small
My pups love to shred things. This was a good toy for them to satisfy their need to shred things. My dogs are on the smaller side and I went with a small. I do encourage people to do their research and not leave this toy unsupervised. If your dog eats toys they shred this might not be a good toy for you. Coconut fiber can become impacted if too much is consumed. Unlike other reviewers I didn’t notice to much of a mess outside any other toy a dog might shred.
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Reviewed in the United States on February 28, 2024

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