Corrections first, arguments second.

• Corrections and questions
  hello@usheraudio.com — quote the page and the sentence.
• Supporter enquiries
  supporters@usheraudio.com — a wordmark, a link and one line. Nothing else is for sale.
• What I cannot help with
  “Which should I buy?” — there are no product recommendations here, by design.

Before you write

Three things save us both a round trip. Say which room you are working in and roughly its shape, because almost every bass question is a room question. Say what you have already tried, especially where the speakers and the chair currently sit. And if you are reporting an error, quote the sentence — it is much faster than describing it.

This site has no comments section. Not out of contempt for readers, but because a comment thread on an evergreen page ages badly, and moderating one properly is a second job.

What happens next

1. A factual correctionChecked against a source, fixed in place, and a correction note added at the foot of the piece.
2. A disputed claimRe-read against the three registers on the about page. If the register was wrong, the sentence is rewritten.
3. A question the site does not answerSometimes it becomes a guide. Those are the best letters to get.
4. A request for a product recommendationAnswered with the category explanation instead, which is genuinely more useful and also the only thing on offer.