There are normal home audio upgrades, and then there is the moment when your amplifier arrives looking like it needs its own freight elevator, climate preferences, and possibly a small zoning hearing.
The Goldmund TELOS 9800 Mono Power Amplifier lives proudly in that second category. It is not a cute little box you tuck under a media console while pretending cable management is a personality trait. This is a two-piece, 360-kilogram monoblock amplifier system from Swiss luxury audio maker Goldmund, with a dedicated power supply standing beside the amplification stage like a loyal square-bodied butler who only speaks in current delivery.
Goldmund describes the TELOS 9800 as the ultimate expression of its amplifier research, and the physical presence does a lot of the talking before a single note has been played. Each monoblock is built from two distinct but connected volumes: the amplifier unit and the dedicated power supply. Together they form a sculptural tower of micro-blasted aluminum, dark cooling surfaces, clean geometry, and gold accents that make the whole thing feel less like hi-fi equipment and more like a ceremonial object from the republic of extremely expensive listening rooms.
That separation is not just for drama, although it absolutely does bring enough drama to make an ordinary receiver hide behind the TV. Goldmund says the two-enclosure architecture lets the power supply and amplification stage operate under more optimal conditions, which is the practical engineering reason behind the product’s large, architectural shape. The company also says the TELOS 9800 builds on the TELOS 8800 with a redesigned platform, next-generation MOSFET output devices, more powerful transformers, increased energy reserves, and a newly developed SoftStart circuit.
A Mono Amplifier That Treats Scale Like A Lifestyle Choice
The big headline number is 1,560 Wrms into 8 ohms. That is the sort of figure that makes speaker terminals sit up straighter. Goldmund’s technical sheet also lists 2,520 Wrms into 4 ohms, 3,250 Wrms into 2.7 ohms, and 4,180 Wrms into 1.4 ohms, all for a single monoblock amplifier. In plain human terms, the TELOS 9800 is built for people whose speakers are not merely “hard to drive” but “have unionized and issued demands.”
It is also enormous. The listed dimensions are 1,367 x 500 x 500 mm, which makes one unit roughly 53.8 inches tall, 19.7 inches wide, and 19.7 inches deep. The listed weight is 360 kg per unit, or about 794 pounds. A stereo pair therefore becomes a 720 kg audio installation before cables, speakers, furniture, or the emotional mass of explaining it to a spouse.
Some practical TELOS 9800 details worth knowing before you clear a corner of your listening room and maybe reinforce your soul:
- It is a monoblock power amplifier, so a stereo setup requires two units.
- Each unit separates the power supply from the amplification stage in a dual-chassis layout.
- Goldmund lists analog XLR and RCA inputs, plus S/PDIF digital input and output.
- The chassis is precision-machined aluminum with micro-blasted finishing.
- The design uses natural-convection heatsinking instead of a visible fan setup.
- Goldmund lists thermal, overcurrent, and short-circuit protection.
- The gain is adjustable in 3 dB steps across a 35 dB base setting, plus or minus 9 dB.
That is the lovely absurdity here: the TELOS 9800 is intensely technical, but it does not look like a lab instrument. It looks like a very quiet architectural column that has decided to spend its retirement controlling loudspeakers with unsettling authority.
What The Goldmund TELOS 9800 Actually Does
At its simplest, this is a statement-grade mono power amplifier. Its job is to take an audio signal and deliver power to one speaker with as much control, speed, stability, and fidelity as Goldmund can squeeze into a very large, very Swiss object. The company frames the TELOS line around loudspeaker control, ultra-wide bandwidth, low distortion, and preserving the integrity of the musical signal.
The TELOS 9800 is the 2026 flagship step in that lineage. Goldmund’s own product literature places it after the TELOS 600, TELOS 5000, TELOS 5500 NextGen, and TELOS 8800, with the TELOS 9800 described as a completely redesigned platform and the culmination of that reference amplifier journey. That is a fancy way of saying this is the amplifier for the person who heard “top of the line” and responded, “Please define top. I brought a crane.”
| Spec | Goldmund TELOS 9800 detail |
|---|---|
| Product type | Mono power amplifier |
| Architecture | Separate amplification stage and dedicated power supply |
| Continuous power at 8 ohms | 1,560 Wrms |
| Continuous power at 4 ohms | 2,520 Wrms |
| Dimensions | 1,367 x 500 x 500 mm |
| Weight | 360 kg per unit |
| Connections | XLR, RCA, S/PDIF, RS232, trigger, speaker outputs |
Goldmund also lists a damping factor of 900 at 1 kHz into 8 ohms, THD+N under 0.005 percent from 20 Hz to 20 kHz at 30 Vrms output, and output floor noise under 3 microvolts from 20 Hz to 20 kHz with analog input terminated. You do not need to tattoo those numbers onto your listening chair, but they do help explain why this thing exists in the small and magnificent world where “my amplifier is taller than some appliances” is a serious buying criterion.
The Design Is Half Engineering, Half Audio Monolith
The visual design was developed in collaboration with designer Cecile Barani, according to Goldmund. The result is a piece that avoids the usual black-box electronics language. It has sharp planar surfaces, a pale aluminum body, a vertical gold accent, dark heatsink textures, and almost no visual clutter. Even the control and display approach is intentionally minimal, with Goldmund emphasizing intuitive operation while preserving the object’s clean design language.
This matters because a product like this is not disappearing into a cabinet. It is furniture-scale equipment. If you are buying a monoblock amplifier that weighs more than a motorcycle, it is going to be seen. It might become the room. Guests may ask whether they are allowed to breathe near it. Children may instinctively address it as “sir.”
Goldmund says every product is conceived, engineered, and assembled in Switzerland, and the TELOS 9800 leans hard into that precision-object identity. The chassis construction is listed as precision-machined aluminum, with Goldmund Mechanical Grounding included in the mechanical characteristics. The terminals and screws are gold-plated copper, which the company says helps transmission and reduces potential signal loss.
There is a real ownership implication hiding under all that polished metal. This is not a product for someone who wants a fast Saturday afternoon upgrade. It is an installation. The product literature includes sections for positioning, ventilation and cooling, mechanical grounding, electrical requirements, connections, first listening session, daily operation, care, maintenance, and unboxing and handling. That is a polite way of saying you should not drag this out of a box while holding a sandwich.
Who This Is Actually For
The TELOS 9800 is for ultra-high-end audio rooms, dealers, collectors, and listeners who are building a no-compromise reference system around serious loudspeakers. It is also for people who believe the phrase “dedicated listening room” should legally include dedicated structural planning. For most of us, it is a glorious object to admire from a financially responsible distance, like a supercar, a private cinema, or a refrigerator that dispenses emotional stability.
But that is exactly why it works as an OddityMall product. It takes a familiar object, the humble audio amplifier, and expands it until it becomes architecture. The useful part is real: it is made to power demanding speakers with enormous output and control. The funny part is also real: a stereo pair weighs 720 kilograms, which means your hi-fi upgrade now has a relationship with gravity that should be discussed openly.
If you are the target buyer, you are probably not deciding between this and a soundbar. You are deciding whether your current reference system has reached the final form, or whether it still has room for two enormous Swiss monoliths with enough power on tap to make your speakers feel professionally supervised.
Key Details Before You Start Measuring Doorways
- Product: Goldmund TELOS 9800 Mono Power Amplifier.
- Maker: Goldmund, based in Switzerland.
- Core function: statement-grade monoblock amplification for high-performance loudspeaker systems.
- Output: 1,560 Wrms into 8 ohms per monoblock, with higher listed output into lower impedances.
- Build: dual-chassis architecture with separate power supply and amplification stage.
- Materials: precision-machined aluminum chassis with gold-plated copper terminals and screws.
- Size and weight: 1,367 x 500 x 500 mm and 360 kg per unit.
- Availability: listed by Goldmund through its official product page and dealer network.
The Goldmund TELOS 9800 is listed at $500,000 per monoblock, which puts a stereo pair at about $1 million before you begin contemplating speakers, room treatment, delivery logistics, or the sort of chair one sits in after spending house money on amplification. It is available through Goldmund and its dealer network.
| Pros | Cons |
|---|---|
| Massive 1,560 Wrms output into 8 ohms | A stereo pair costs about $1 million |
| Separate power supply and amplification stage | Each monoblock weighs 360 kg |
| Beautiful sculptural aluminum design | Requires serious installation planning |
| Analog and digital connectivity listed | Wildly beyond normal home-audio budgets |
| Designed for demanding reference speakers | Not something you casually move later |
| Swiss engineering and assembly | Dealer-network purchase path, not an impulse cart add-on |
Where to find This Mono Power Amplifier Is a Million-Dollar Pair of Swiss Audio Monoliths
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