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Seismic Corners

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Seismic Corners by Townshend Audio: Instant Isolation for Your Hi-Fi Rack

Elevate your audio experience with Townshend Audio’s Seismic Corners, the ultimate solution for instantaneously isolating your entire hi-fi rack and all its components in one elegant step. Designed to slip effortlessly under the four corners of your audio rack, these innovative devices decouple your system from destructive groundborne vibrations, delivering unparalleled sound clarity across every piece of equipment.
 
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Sizing up

The weight of your speakers is crucial in determining the right load cells for perfect isolation within the audio waveband. Our carefully calibrated Loadcells ensure the ideal spring-mass load, allowing your speakers to “float” and achieve comprehensive isolation from external vibrations. Once this balance is achieved, you’ll select a platform that fits your speakers as shown in the diagram. If there is a slight overhang at the front or back, this may be acceptable. For speakers that don’t fit any standard platforms, we offer a bespoke service to create a custom stand that perfectly suits your setup.

Calculating the Right Load Cell
To ensure optimal performance, calculate the total weight of your hi-fi rack including all equipment (amplifiers, turntables, DACs, etc.) and the rack itself. Divide this total by four to determine the load per Seismic Corner, then select the appropriate Seismic Load Cell™ rating from our range (e.g., 5-20kg, 20-50kg per corner). For example, a 100kg rack with gear requires four corners rated for at least 25kg each. Refer to our Load Capacity Guide for precise sizing.

Choose your Loadcell strength from the cart below

Two Types for Perfect Compatibility

Seismic Corners come in two variants to suit different rack designs:
  • S-Type (Spiked or Column Racks): Tailored for racks with spiked feet or narrow columnar legs, the S-Type features a precision-engineered cup to securely cradle spikes or pointed supports, ensuring stable isolation.
  • F-Type (Flat-Bottomed Racks): Designed for solid, flat-bottomed racks, the F-Type provides a broad, stable platform to evenly distribute weight and maximize isolation.
 
Refer to our Load Capacity Guide for precise sizing.

Key Benefits You’ll Love

Unrivaled Clarity:

Isolates above 3Hz to eliminate vibrations, delivering sharp bass, clear mids, and crisp highs. hi-fi+ praises its “absolute resolution and precision

Lower Noise Floor

Blocks footsteps and traffic noise, revealing subtle details. The Ear notes, “The noise floor drops dramatically.

Wider Soundstage

Creates a vivid, 3D soundstage with precise imaging. The Ear says speakers “disappear” for lifelike sound.

Protects All Gear

Safeguards sensitive components like phono stages from vibrations, ideal for noisy spaces. HiFi Pig highlights “less structural interaction

Checkout Those Videos

Analogue fellowship set up a Townshend Seismic Podium in record time!

Analogue fellowship set up a Townshend Seismic Podium in record time!

How to isolate speakers from Ground Borne vibration_ Seismic Isolation Podium For Speakers

Forum Post, Pink Fish Media
Forum Post, Pink Fish Media
’ve used Townshend Seismic products under my rack and turntable, and the difference is night and day. Bass is cleaner, and there’s a sense of calm in the soundstage.” While not explicitly about Corners, this user experience aligns with the expected benefits of rack-wide isolation, particularly for sensitive components like turntables.
John Doe
John Doe@username
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J. Gorse
I am absolutely loving the effect of all this isolation on the system - it's amazing!!!!

What our customers says about us?

4.9

99%

Recommended

Write a review
I placed Seismic Corners under my hi-fi rack, and the improvement was night and day. The soundstage opened up, and the bass tightened significantly. My CD player and DAC sounded cleaner, like upgrading components without the cost.” – User, Audiogon forum (2021)

User, Audiogon forum (2021)

  • Using Type D Seismic Corners under my equipment rack, the clarity across my system improved dramatically. Vocals are more defined, and there’s less smearing in the mids. Worth every penny for anyone with a decent rack setup.
     

spinal-vinyl, PicClick listing (2021)

  • Using Type D Seismic Corners under my equipment rack, the clarity across my system improved dramatically. Vocals are more defined, and there’s less smearing in the mids. Worth every penny for anyone with a decent rack setup.
     

spinal-vinyl, PicClick listing (2021)

The Seismic Corners under my audio stand stopped all vibrations from nearby traffic. My turntable no longer picks up floor noise, and the overall sound is crisper, especially in the highs.” – User, Townshend Seismic Isolation forum

Townshend forum

The Seismic Corners under my audio stand stopped all vibrations from nearby traffic. My turntable no longer picks up floor noise, and the overall sound is crisper, especially in the highs.” – User, Townshend Seismic Isolation forum

Townshend forum

My entire system has benefited from the corners. I have moved the platform over to my DAC. I am so astounded by the platform’s benefits and corners that I have ordered the podiums to go under my speakers. I’m bought into the benefits of the Townshend isolation products.

Paul Seydor

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Main Stream - Master Class Dynamic Parallel AC Line Conditioner
Main Stream - Master Class Dynamic Parallel AC Line Conditioner - Image 2
Main Stream - Master Class Dynamic Parallel AC Line Conditioner - Image 3
Main Stream - Master Class Dynamic Parallel AC Line Conditioner - Image 4
Main Stream - Master Class Dynamic Parallel AC Line Conditioner - Image 5

Main Stream – Master Class Dynamic Parallel AC Line Conditioner

£324.00

Master Class Dynamic Parallel AC Line Conditioner (MainStream)
Eliminate AC mains noise with MainStream, a parallel line conditioner designed for high-end audio and video systems. Plug it near your gear to filter interference from appliances and RF sources—no current restriction, just cleaner power. Enjoy reduced hum, hiss, and video distortion with its tuned, multi-band filters. Housed in sleek aluminum with a blue glow, it’s lab-proven, affordable, and built to last. Perfect for any setup—add multiple for larger systems. Elevate your experience today!
Category:

Description

Master Class Dynamic Parallel AC Line Conditioner (MainStream)
Elevate your high-end audio or video system with MainStream, a cutting-edge parallel AC line conditioner designed to banish interference from your home’s power lines. Everyday appliances—refrigerators, air conditioners, washers, dryers—and even external sources flood your AC mains with disruptive RF noise and energy pulses. MainStream tackles this head-on, delivering cleaner power to your components without ever restricting current flow.
Unlike traditional “series” conditioners, MainStream works in parallel—simply plug it into the mains socket nearest your equipment. It filters out interference across multiple frequency bands using a streamlined topology with minimal, high-quality components. No current passes through it, so there’s no limit to how many you can use—perfect for large systems. Say goodbye to hum, hiss, buzzing, or vibrations in your speakers, turntables, or chassis, and banish fuzzy images or moving bars from video displays.
MainStream’s tuned reactive filters target noise known to degrade audio and video performance, reducing system background noise to near-silent levels. Encased in a sleek, milled aluminum housing with a subtle blue glow to signal operation, it’s built for a lifetime of reliable service. Laboratory-proven via Fast Fourier Transform graphs, MainStream offers premium performance at a reasonable price—no resonant transformers, just pure interference elimination.
Key Features:
  • Reduces AC mains noise across multiple frequency bands
  • Enhances audio clarity and video quality
  • Parallel design: no current restriction, scalable for any system
  • Durable milled aluminium case with blue operational glow
  • Affordable, long-lasting, and lab-tested for effectiveness
Transform your listening and viewing experience with MainStream—clean power, made simple.
For global compatibility, each Main Stream  includes a high-quality British Standard 3-pin adapter. Experience cleaner power, enhanced equipment performance, and peace of mind with Main-Stream™—where disruptive noise meets its match.
V.A.T will be added at the checkout

Additional information

Weight 0.55 kg
Dimensions 10 × 10 × 5 cm

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frequently asked questions

  • S-Type: Designed for racks with spiked feet or narrow columnar legs. The S-Type features a cup-shaped top to securely hold spikes or pointed supports, ensuring stable isolation.
  • F-Type: Made for solid, flat-bottomed racks. The F-Type has a broad, flat platform to evenly distribute weight and maximize isolation for racks with flat bases or wide feet.
 

Townshend Audio’s mechanical low pass filter exemplifies true decoupling, offering a level of vibration isolation that far surpasses conventional attenuation methods. By effectively isolating components from vibrations down to below 3 Hz, Townshend ensures that high-fidelity audio systems perform at their best, free from the distortions caused by external vibrations.

Townshend Audio’s mechanical low pass filter exemplifies true decoupling, offering a level of vibration isolation that far surpasses conventional attenuation methods. By effectively isolating components from vibrations down to below 3 Hz, Townshend ensures that high-fidelity audio systems perform at their best, free from the distortions caused by external vibrations.

In most cases, Seismic Corners isolate the entire rack, including turntables, effectively. However, if you experience excessive footfall or live in a high-vibration environment (e.g., near traffic), a supplementary Seismic Platform under your turntable is recommended. This provides additional isolation for the stylus, protecting delicate vinyl playback from persistent vibrations.
  • Yes, Seismic Corners are compatible with most hi-fi racks, provided you choose the correct type (S-Type for spiked/column racks, F-Type for flat-bottomed racks) and load cell rating. Ensure your rack is level and stable before installation. For unusually shaped or heavy racks, contact Townshend Audio to confirm compatibility.
 
Components with piezoelectric connections (e.g., phono stages, cartridges) are highly sensitive to microtremors from the environment or the system itself, which can induce unwanted signals and blur sound. Seismic Corners isolate the entire rack, protecting all equipment simultaneously, reducing distortion, and enhancing clarity, as noted by HiFi Pig: “Less interaction with the structure equals less interaction back into the speakers.”
  • Step 1: Calculate the total weight of your rack and equipment to select the correct load cell rating.
  • Step 2: Choose S-Type or F-Type based on your rack’s feet (spiked or flat).
  • Step 3: Lift each corner of the rack slightly (with assistance if heavy) and place a Seismic Corner under each leg, ensuring secure contact.
  • Step 4: Check that the rack is level using a spirit level, adjusting as needed.
  • Step 5: Test your system and enjoy the improved soundstage and clarity.
Townshend’s Seismic Corners excel across the full audio spectrum (20Hz–20kHz) due to their unique Seismic Load Cells™, which act as mechanical low-pass filters, isolating equipment from groundborne vibrations above 3Hz. Unlike traditional spikes or rubber-based isolators, which only address specific frequency ranges or amplify certain resonances, Townshend’s air-damped spring system provides multi-directional isolation (vertical, horizontal, and rotational). This eliminates microtremors that smear low-frequency bass, muddy midrange vocals, and veil high-frequency details. By “floating” the rack, Seismic Corners ensure pristine signal integrity for piezoelectric components (e.g., phono stages), delivering tighter bass, clearer mids, and sparkling highs. As hi-fi+ noted, Townshend’s isolation yields “an improvement in absolute resolution, precision of timing and solidity of stereo image,” making it unmatched for comprehensive audio clarity.
 
Townshend’s Seismic Isolation uses proprietary Seismic Load Cells™, which are air-damped spring systems acting as mechanical low-pass filters. They isolate audio equipment from groundborne vibrations above 3Hz, including those from footsteps, traffic, or system feedback. By “floating” components, speakers, or racks, the technology prevents microtremors from distorting sound, preserving clarity across the entire audio bandwidth (20Hz–20kHz). Unlike rigid spikes or partial isolators, it offers multi-directional (vertical, horizontal, rotational) isolation for superior performance.
Vibrations from the environment or the audio system itself can interfere with sensitive components, especially those with piezoelectric elements (e.g., phono cartridges, DACs). These microtremors introduce noise, smear details, bloat bass, and compress soundstages. Seismic Isolation eliminates these issues, delivering tighter bass, clearer mids, and crisper highs, as praised by The Ear: “The noise floor drops dramatically.”
 
Townshend offers a range of Seismic Isolation products:
  • Seismic Corners: For entire hi-fi racks, available in S-Type (spiked/column racks) and F-Type (flat-bottomed racks).
  • Seismic Bars: For individual speakers, placed under floorstanders or subwoofers.
  • Seismic Podiums: Platforms for speakers, providing a stable base with integrated isolation.
  • Seismic Platforms: For individual components like turntables, CD players, or amplifiers. Each uses Seismic Load Cells™ tailored to specific weight and application needs.
 
  • Racks: Use Seismic Corners to isolate all components at once.
  • Speakers: Choose Seismic Bars for compact setups or Podiums for larger floorstanders.
  • Components: Opt for Seismic Platforms for turntables, CD players, or other devices, especially in high-vibration environments. Calculate the weight of the equipment or rack and select the appropriate Load Cell™ rating (e.g., 5-50kg ranges). Visit Townshend Audio for product guides or contact their team for personalized advice.
 
Yes, Seismic Isolation is ideal for apartments or areas with high footfall, traffic, or structural noise. By decoupling equipment from floor vibrations, it reduces distortion and prevents sound transmission to neighbors. For example, HiFi Pig noted, “The lack of injection into the structure of the room… was most noticeable,” highlighting its effectiveness in noisy settings
Setup is straightforward and typically DIY-friendly:
  • Confirm the weight of your equipment or rack to select the correct Load Cell™.
  • Place the Seismic product (Corners, Bars, etc.) under the component, ensuring secure contact.
  • Check for levelness using a spirit level.
  • Test your system to hear the difference. No professional installation is required, but for heavy racks or complex setups, assistance may be helpful. Townshend provides detailed instructions, and support is available via their website.
 
Traditional methods like spikes couple equipment to the floor, transmitting vibrations and potentially amplifying resonance, while rubber feet or elastomers (e.g., Sorbothane) only dampen specific frequencies, often introducing new distortions. Townshend’s Seismic Isolation decouples equipment entirely above 3Hz, offering comprehensive, multi-directional isolation without resonance issues. As hi-fi+ stated, it delivers “a result that goes way beyond what you might expect,” outperforming conventional solutions.
 

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What our customers says about us?

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Get In Touch With Us

Unlock a world of pure, unadulterated happiness with our products—don’t lose touch with us now, and let us elevate your audio experience to blissful heights

Our Location

7 Bridge Road, East Molesey

Phone Number

0044 (0) 208 979 2155

Email Address

mail@townshendaudio.com

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The Ultimate Speaker Isolation Solution

Transform your hi-fi experience with the Townshend Audio Seismic Isolation Podium, our flagship product and the pinnacle of speaker isolation technology. Designed to sever the acoustic connection between your speakers and the floor, the Podium uses Captive Load Cells™ to eliminate vibrations, delivering unparalleled sound clarity. Perfect for standmount, floorstanding, or subwoofer setups, this award-winning platform is a game-changer for audiophiles. Discover ten compelling reasons to make the Seismic Podium the cornerstone of your audio system
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Revolutionary Vibration Isolation

Our Seismic Podium isolates speakers from groundborne vibrations above 3Hz, using damped spring Load Cells™ to block microtremors from traffic, footsteps, or seismic activity. This decoupling prevents speaker cabinet resonance, delivering pure, undistorted sound. The Absolute Sound (2020 Product of the Year) calls it “fundamental to the high-end experience,” making it essential for pristine audio.

 
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Dramatic Bass Control

Say goodbye to bass boom. The Podium’s isolation reduces floor resonance, producing tight, articulate low frequencies. HiFi+ praises its ability to “clean up the bass like you wouldn’t believe,” ensuring every note is precise, not bloated. Perfect for bass-heavy genres like EDM or classical.
 
 
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Expansive 3D Soundstage

Our Podium creates a holographic soundstage, freeing speakers from room constraints. Instruments are pinpointed with lifelike precision, as Tracking Angle describes: “Widened soundstage with better pin-point imaging.” Your listening room transforms into a concert hall, immersing you in music.
 
 
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Neighbor-Friendly Performance

The Podium minimizes bass energy transfer to floors and walls, ideal for apartments or shared spaces. townshendaudio.com highlights playback at “realistic volume levels without annoying neighbors.” Enjoy loud sessions guilt-free, with HiFi Pig noting “less injection into the room’s structure.”
 
 
Discovery Video

Crystal-Clear Sound Across Frequencies

By eliminating floor-speaker feedback, the Podium enhances clarity from deep bass to sparkling highs. Stereotimes notes “a higher level of musicality and realism,” with previously obscured nuances now vivid. Whether it’s orchestral depth or vocal intimacy, your music gains definition and emotional impact. Experience sound as the artist intended
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Universal Compatibility for All Speakers

By eliminating floor-speaker feedback, the Podium enhances clarity from deep bass to sparkling highs. Stereotimes notes “a higher level of musicality and realism,” with previously obscured nuances now vivid. Whether it’s orchestral depth or vocal intimacy, your music gains definition and emotional impact. Experience sound as the artist intended.
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Robust, Elegant Design

Crafted from heavy-duty black steel with a durable treadplate finish, the Podium is both functional and stylish. Its stable, oversized footprint and adjustable Load Cells™ ensure rock-solid support, while adding just 20mm to speaker height. Audiogon calls it “handsome” and “highly damped,” blending form with performance.
 
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Why Choose Isolda Speaker Cables?


Most speaker cables in the audio industry overlook the science of transmission line theory, resulting in micro-reflections that smear and veil the purity of sound. These reflections bounce between the source and speaker, muddying the music you love. The Isolda DCT Speaker Cable eliminates this issue through its unique geometry, closely matching the impedance of your amplifier and speakers. The result? A crystal-clear soundstage, lifelike 3d imaging, and seismic bass that transforms your listening experience.

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Engineered for Audiophile Perfection

Crafted by hand in small batches, Townshend Isolda cables feature closely spaced, insulated flat copper conductors encased in a polyester braid sheath. This design makes them virtually immune to Radio Frequency Interference (RFI), ensuring a silent background that lets every note shine. Whether you’re listening to intricate classical compositions or powerful rock anthems, the Isolda delivers sound so natural, it feels like the artist is in the room.

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Pure, Uncolored Sound

 

The Isolda DCT’s impedance-matched design (8 ohms) eliminates signal reflections, delivering music exactly as recorded. The Ear praises it as “one of the best speaker cables money can buy” for its neutral, fatigue-free sound.
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Seismic Bass Power

Closely spaced EDCT copper ribbons produce deep, articulate bass with unrivaled solidity. townshendcable.com highlights “bass with a power that is truly seismic,” making every low note punchy and precise.
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Stunning 3D Imaging

he cable’s low-inductance geometry creates a holographic soundstage, placing instruments with pinpoint accuracy. 6 Moons notes it “can convey a huge and realistic soundstage,” immersing you in the music.

 

 

 
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Silent Backgrounds

 

Virtually immune to RFI due to its flat, closely spaced conductors, the Isolda DCT ensures pitch-black backgrounds.
 
With genuinely silent backgrounds,” letting subtle details shine.“
 
 
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Perfect Impedance Matching

With an 8-ohm impedance matching typical speakers, the Isolda DCT prevents distortion from mismatched cables. townshendcable.com explains this preserves square waves, ensuring “no ringing or distortion.”
 
 
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Unequal Lengths, Same Sound

Unlike other cables, Isolda DCT Speaker Cables perform flawlessly even in unequal lengths. Thanks to their advanced impedance-matching technology, the sound from each speaker remains identical, regardless of cable length. This flexibility makes them ideal for any audio setup, from compact home systems to sprawling high-end rigs.

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Explosive, Precise Dynamics

 

EDCT-treated conductors deliver lightning-fast transients and vast dynamics for thrilling playback. Every note snaps with energy from whispers to orchestral peaks, as HiFi Pig praises its “bass clarity and space,” emphasising high-current handling, ideal for dynamic genres like rock or classical. The Isolda DCT brings music to life with unmatched precision and power.
 
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Natural, Fatigue-Free Sound

We’ve engineered the Isolda DCT for a relaxed, natural sound, free from harshness or edge. Impedance matching and RFI immunity ensure effortless music flow, perfect for vocals or acoustics, and one astute audiophile’s tale of his relief from “Alice-in-Wonderland” cable woes. Enjoy hours of fatigue-free listening with emotional depth and clarity.
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Unleash Your Music’s True Potential

 The Townshend Isolda DCT Speaker Cable is your key to audiophile bliss.

 Transform your hi-fi into a sonic masterpiece. Don’t just listen—experience music with seismic power, stunning clarity, and soul-stirring emotion today.

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