TUBE-TECH CL-1B

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$3,799.00 to $5,450.00 Price Tier: High-end

5.0 (14)

1 Critic Review

5 Reviews

Newer option

Softube TubeTech CL 1B mk II

4.0 (1)

Find out who is using Tube-Tech CL 1B

3 community setups

73 wishlisted

107 saved

Page last updated Jul 07, 2026

Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated July 6, 2026.

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Reviews

Price

5.0 (16)

$4,725.00

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5.0 (1)

$4,725.00

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5.0 (16)

$5,450.00 4 available New

$3,903.91 19 available Used

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4.0 (150)

$4,725.00

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5.0 (10)

$3,866.00 $3,799.00 $67.00 · All time low

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4.9 (14)

$4,725.00

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Average Price: $4,579

High-end/Boutique

$100

$501+

Price Tier

In the Effects Processors category, TUBE-TECH CL-1B is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "TUBE-TECH CL-1B". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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The Tube-Tech CL 1B Opto Compressor stands as a benchmark in the world of professional audio, revered for its ability to deliver velvety-smooth compression that enhances any recording with unparalleled warmth and transparency. This iconic piece of studio gear, often seen in top-tier studios from LA to Nashville, is celebrated for its intuitive controls and versatile application across a variety of instruments and vocal tracks. Its simplicity belies a sophisticated design that effortlessly preserves the clarity and character of your sound, even under heavy compression.

At the heart of the CL 1B lies a gain-reduction element that is immediately effective, offering engineers and producers the option of fixed or manual time control to tailor the compression to their exact needs. The compressor's all tube-based push-pull amplifier provides up to 30dB of variable gain, ensuring your tracks sit perfectly in the mix. Whether it's vocals, bass, guitars, or keys, this compressor allows you to achieve a polished sound with ease, without unwanted artifacts.

For those in the know, the CL 1B is not just equipment; it's an essential tool that integrates seamlessly into any professional setup, offering balanced connections and linkability with multiple units for expanded processing options.

Key Features:

Unique low distortion gain-reduction element
All tube-based push-pull amplifier
Linkable with another CL 1B via two busses
VU meter for monitoring input, compression, and output
Continuously variable attack and release time
Gain range: off to +30dB
Variable Threshold: off to -40dBu
Frequency response @ -3dB: 5Hz-25kHz
Low noise: < -75dBu @30dB gain
Clickless bypass switch
Balanced XLR input and output

Owner's manual

TUBE-TECH CL-1B User Manual

Product specs

Type	Tube Optical
Number of Channels	1
Controls	Gain, Ratio, Threshold, Attack, Release
Threshold	-40 dB to 0 dB
Ratio	2:1 to 10:1
Frequency Response	5Hz-25kHz (-3 dB)
Inputs	1 x XLR
Outputs	1 x XLR
Sidechain I/O	2 x 1/4"
Rack Spaces	3U
Height	5.25"
Depth	6.7"
Width	19"
Weight	9 lbs.

FAQs

What makes the Tube-Tech CL 1B compressor unique compared to other compressors?: The Tube-Tech CL 1B is a tube optical compressor known for its smooth, musical compression, making it ideal for vocals and bass. Its tube design provides warmth and character, while the optical element ensures a natural, transparent sound.
What types of music is the Tube-Tech CL 1B best suited for?: The Tube-Tech CL 1B excels in genres like pop, hip-hop, and R&B due to its ability to transparently compress vocals and bass without adding harshness, maintaining a polished and consistent sound.
Can the Tube-Tech CL 1B be used for stereo applications?: The Tube-Tech CL 1B is a mono compressor, but it can be used in stereo applications by pairing two units together, allowing for independent control and processing of each channel.
How does the Tube-Tech CL 1B handle fast transients?: The Tube-Tech CL 1B features adjustable attack and release controls, allowing it to handle fast transients effectively while maintaining a smooth compression curve, making it versatile for various dynamic sources.
What are the connectivity options for the Tube-Tech CL 1B?: The Tube-Tech CL 1B offers XLR inputs and outputs, along with sidechain I/O via 1/4" jacks, ensuring compatibility with professional studio setups.

Videos

Add video

TUBE-TECH, LYDKRAFT

TUBE-TECH CL1B Demo: Sound and Controls. Simple Voice demo

TUBE-TECH, LYDKRAFT

Tube-Tech CL 1B | Compressor | Vintage King

Vintage King

Slate Custom Opto vs Tubetech CL1B Hardware Comparison

Christian Svedin

Tube-Tech CL1B Tube Compressor

Retrosonic Pro Audio

Reviews

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PROS

Superior warmth and smooth compression ideal for vocals
Unmatched transparency, hard to make it sound bad
Provides rich, creamy audio enhancement like no plugin can
Excellent on a range of sources: vocals, bass, keyboard
Simple controls, even for beginners
High-quality components and design justify the price
Versatile use in studio and live settings
Can effortlessly achieve professional recording/mixing results
Benefits from tube upgrades for custom sound preferences
Regarded as the industry standard and best vocal compressor

CONS

High price point may be prohibitive for some
Knobs could offer more resistance to prevent accidental adjustments

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about TUBE-TECH CL-1B.

Comparisons

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Kiive emulation is noted for its versatility and is perceived by some users as sounding closer to the original CL-1B than the UAD version.
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Compared to the LA-2A, the CL-1B is noted to be faster, which is beneficial for capturing quick transients in genres like rap.
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The Softube CL1B plugin is noted to closely emulate the hardware version, particularly when compared to other plugins like the UAD, which uses the same Softube code.
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Softube's CL1B v1, while close to the original hardware, is noted to lack the hardware's "lift" and saturation characteristics, requiring users to adjust their processing approach.
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Software and compatibility

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Issues with UA Connect include forced auto-updates that may disrupt plugin functionality if they conflict with the operating system, requiring internet for operation.
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UA's DSP-based CL-1B is essentially a Softube emulation, highlighting the distinction between UAD's platform and native plugin availability.
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Users suggest that the Softube CL1B MKII is an excellent native plugin choice, with some indicating that UAD's delay in adopting MKII demonstrates its quality.
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Use cases and applications

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The UAD CL-1B is appreciated for its smooth compression, particularly effective on vocal tracks, though some users prefer it for adding a "smear" effect on acoustic buses.
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The CL-1B is favored for its transparency and is frequently used on vocals and bass, though some users also apply it successfully to acoustic guitars and percussion.
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The compressor is popular in Nashville studios for country vocals, although some users find it less forgiving with dynamic singers, requiring careful management of the threshold.
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The CL-1B's tube design subtly smoothens the low and top end, making it especially appealing for vocal work where a natural, transparent sound is desired.
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The CL1B is praised for its ability to soften transients without losing clarity, making it suitable for preserving the "air" in vocal recordings.
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For achieving CL1B-like results, combining a plugin with high-frequency saturation or a de-esser is recommended to mimic the hardware's analog warmth.
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Features and functionality

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The CL-1B offers more control with its additional parameters compared to the LA-2A, making it a versatile choice for those who want less character from their compressor.
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User experience

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Owners report a learning curve with the attack knob, cautioning that small adjustments can significantly impact the sound, but achieving the right settings yields exceptional results.
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Owners highlight the variability in sound among different CL1B hardware units, especially with tube gear, suggesting careful listening over reliance on reviews.
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Critic Reviews

The Amazing TUBE-TECH CL 1B from 1991

vintagedigital.com.au

The Tube-Tech CL 1B Opto Compressor is lauded for its smooth and musical compression, maintaining clarity even at extreme settings. Its intuitive operation and versatility make it a favorite for vocals, guitars, and more across genres. While the review doesn't delve into drawbacks, the absence of criticism and its widespread acclaim in top studios suggest it’s a stellar choice for professionals.

positive

Full Review