# twochannel.ai

> Build and compare hi-fi systems: pairing-first component matching, compatibility
> checks, crowdsourced pricing, and AI system analysis across a catalog of 16,000+
> audio products from 2,300+ brands.

## Reference systems

Editorial, compatibility-checked stereo system builds with the signal-chain
pairing rationale written out. These pages are public and citable.

- Reference systems index: https://app.twochannel.ai/reference
- How pairing works: https://app.twochannel.ai/how-we-pair

## Product catalog

Public, crawlable component pages: name, brand, category, key specifications
(sensitivity, impedance, power, frequency range), production years, and a
community-sourced price estimate. Prices are community estimates — twochannel.ai
is not the seller and does not list offers. Full structured specifications,
purchase options, and system-membership data are available to free members.

- Products directory: https://app.twochannel.ai/products
- Example product: https://app.twochannel.ai/products/bowers_wilkins_cm_c

## Brands

Public, crawlable manufacturer pages: brand description, country, official
website, product lines, and the brand's components with community price
estimates.

- Brand directory (A–Z): https://app.twochannel.ai/brands
- Example brand: https://app.twochannel.ai/brands/bowers-and-wilkins

## Pairings

Public, citable compatibility analyses between two specific components: an
electrical compatibility verdict (impedance, sensitivity, and power matching),
estimated SPL at listening distance, the signal-chain rationale, and real
example systems that use the pairing. Each indexable product also has a hub
page listing the components it pairs well with. Verdicts are engineering
estimates from published specifications, not endorsements.

- Example pairing: https://app.twochannel.ai/pair/<product-a>/<product-b>
- Pairs-with hub: https://app.twochannel.ai/products/<product>/pairs-with

## About

- Marketing site: https://www.twochannel.ai
- Creating a free account unlocks full specifications, watchlists, comments,
  and the AI system builder.