Onkyo System-1
A Home THX speaker package sold alongside the receiver that reviewers of the day were calling the best A/V unit they'd ever tested.
Overview
The Onkyo System-1 is not a receiver, not a tuner, and not an amplifier. It is a complete Home THX certified speaker system, announced by Onkyo Corporation out of Ramsey, New Jersey in June 1994 as the companion to the TX-SV919THX. Onkyo billed that receiver as the world's first Home Theater THX receiver, and it got the headline. System-1 was the full speaker package built to the same THX certification, so buyers could put together a total Home THX setup in one move. Onkyo's announcement said the pairing delivered a complete THX package "at a cost well within reach of most enthusiasts." That is marketing, not a verified price claim, because the announcement text never says what the cost was.
The period coverage is clear about the receiver. Stereo Review technical editor David Ranada, writing in the August 1994 issue, called the TX-SV919THX "the best A/V receiver I have ever tested." Onkyo reprinted the line in its own advertising through late 1994 and into early 1995, in the pages of Audio and HiFi-Stereo among others. The quote is genuine period reception, but it is a verdict on the receiver, not on the System-1 speakers, and Onkyo used it as ad copy. The System-1 rode on the THX certification and its partner component. No independent speaker review survives in the available record.
In 1994, Home THX was becoming the reference standard for multichannel playback, in cinemas and increasingly in living rooms. Onkyo moved early to stake a claim there. The System-1 is the speaker side of that bet, a package made to complement a specific receiver and to satisfy THX's certification requirements as a matched set. Onkyo described the system as including both powered and passive elements, though the surviving announcement material does not say which channels or cabinets were which.
The System-1 is tied to a very specific moment, the first wave of THX-certified home hardware, and it can't be separated from the TX-SV919THX it was sold to accompany. That makes it interesting as a matched-system artifact and much less so as a standalone speaker purchase. The documentation that survives is essentially Onkyo's own launch material plus the receiver's press. Anyone chasing a System-1 today should expect to find it as part of a package with the receiver, and should treat any seller's claims about individual driver specs, power handling, or cabinet construction with caution. The primary sources don't carry that detail.
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