Coherence, timing, and drive are as good as any I’ve encountered, while transient response (‘speed’ as some audiophiles prefer) is outstanding (i.e., percussion instruments sound like the real thing).”
Seismic Platforms are available with seven different weight range capacities, varying progressively from less than 1 kg up to 200kg. The maximum load when using four ( 4) type “F” Load Cells is 200kg (440lb). For loads greater than this, simply add more Load Cells. Virtually any weight of equipment can be isolated. Each Load Cell is screw adjustable in height to allow for out of balance loads where the centre of gravity of the component is not near its geometrical centre. If the level balance cannot be achieved, then it is suggested to use additional Seismic Pods positioned under the Platform as necessary, to balance the load. For asymmetric components such as a valve (tube) amplifier with the transformers at the rear, different load capability Seismic Load Cells™ can be used to balance the load.
Especially designed to isolate individual components such as CD players, turntables, DACs, preamplifiers, power amplifiers, computers and streamers from deleterious vibration. The Seismic Isolation Platform includes a durable slim steel top plate that integrates unobtrusively under any hi-fi component. The acoustically dead constrained-layer damped plate combined with a Seismic Load Cell™ attached to each corner is the ultimate combination to absorb and isolate unwanted vibration, including structural, air-borne and that generated by the hi-fi equipment. The Seismic Isolation Platform is available in three standard sizes:
·Size 1 43x30cm (17×12″)
·Size 2 48x35cm (19×14″)
·Size 3 52x40cm (20.5×16″) Platform working height is approximately 40mm (1.5″) The Platform can be levelled by turning the adjustable Seismic Load Cell™. It is important to specify the weight of your equipment when ordering. Bespoke platforms are available for any size or weight of audio equipment.

“world-class transparency and unerring detail.”
The autoformer-based passive preamplifier is one of many audio products pouring out of Townshend Audio. The Allegri has a striking ability to get out of the way of the music.
What makes the new Townshend Allegri+ great is that it seems to clarify the signal, puts one arm on its shoulder and just says calm down, relax…now go!
At Townshend Audio, our mission is to craft audio components that reveal music in its purest form, free from distortion or coloration. We are proud to announce that the Townshend Allegri Reference Preamplifier has been awarded the prestigious StereoNET Applause Award in 2020, a recognition that celebrates its exceptional engineering and transformative sonic performance. This […]
It has no sound of its own. I heard no real or imaginary effect of the Allegri+ on the output.
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Details
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Frequency response:
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8Hz-100kHz +/- 0.1dB |
Maximum signal level:
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4V RMS 8Hz; 10V RMS 20Hz |
Maximum DC offset :
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5mV. (For undistorted 8Hz) |
Distortion:
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Less than 0.01% at 400Hz, 10V (2nd and 3rd harmonic only) |
Input impedance is dependent upon the load impedance and gain setting. So, with a power amplifier having 20kohm input impedance (typical) |
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Impedance:
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At 0dB, input impedance is 20kohm |
Inputs:
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At 0dB, input impedance is 20kohm. At -10dB (normal listening) input impedance is 200kohm, for a power amplifier load with 20kohm input impedance. |
Inputs:
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6 pairs RCA phono sockets (gold plated)
One 3.5mm stereo socket on front panel.
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Outputs:
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2 pairs RCA phono sockets (gold plated) |
Width:
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135mm (5.3in)
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Height:
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53mm (2.1in)
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Depth:
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326mm (12.8in) |
Weight:
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2kg (4.4lb)
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“The Seismic Podiums become so fundamental to the listening experience that calling them mere accessories fails to give them enough credit.”
“The way it removes the speaker’s interaction with its surroundings is mind blowing, bringing clarity to the entire frequency range that enables it to communicate more effectively with the listener. You haven’t truly heard how your speaker can perform until you’ve placed it on one of these. Enthusiastically recommended.”
“So what do Seismic Podiums do for sound quality? If I said “everything” you wouldn’t believe me, but the answer is not far off. They dramatically increase low level resolution so you can hear more detail, they clean up the bass like you wouldn’t believe and the improve dynamics and speed.”