New Crossword

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Across
  1. 3. Company behind the Newton personal assistant (5)
  2. 6. A Lancashire town - or the first voice heard on Radio 1 (9)
  3. 8. Pixies album (9)
  4. 10. Tannoy Kensington GRs are what? (12)
  5. 12. Home of the annual National Audio Show (11)
  6. 13. Developed the CD system alongside Sony (7)
  7. 15. Not digital (8)
  8. 16. Hi-Fi World editor (11)
  9. 18. Bohemian...... (8)
  10. 20. Bassist with The Clash (7)
  11. 21. Famous for its electrostatic loudspeakers (4)
Down
  1. 1. Where the Beatles recorded (9)
  2. 2. Expensive tweeter material (9)
  3. 4. The firm founded by Spencer and Dorothy Hughes (7)
  4. 5. Single box music system from Cyrus (5)
  5. 6. aptX is a codec for what wireless system? (9)
  6. 7. Invented the phonograph in 1877 (12)
  7. 9. Quasi-ribbon speaker developer (11)
  8. 11. Salisbury-based hi-fi company (4)
  9. 12. A dog - or a 'speaker driver (6)
  10. 14. This company supplied amplification for Woodstock (8)
  11. 17. French amplifier maker (8)
  12. 19. Classic studio tape machine (6)