Pryed developed for students in order to get a hi-fi quality in a car .,

2. Install a sound system in a
Opel Astra

3. Who have taken part in this
project?
• Students
• Teachers
• Partner Enterprises

4. Group of students (2º
Electromechanics, course 2013-14)

5. Teachers

6. Partner Enterprises

8. And all this with a common goal
With a standard car… …Do something that
sounds very well.

9. “Even the longest trip begins with a step”.
(chinese proverb)

12. Methodology

13. Methodology

18. Activities

21. The evaluation

22. the evaluation

25. Self-assessment. Targets

26. Coevaluation. Rubrics

27. Heteroevaluation. Technical
part

28. Group capabilities

29. Social skills (of the group)

30. The technical part

31. Miniprojects
1. Interior Dismantling
2. Sound Proofing
3. Making of structures
4. Dashboard Preparation
5. Inner Door Shells
6. Wiring routing and connection of the
different parts
7. Final Fittings

32. 1. Interior Dismantling
• Dashboard
• Inner Door Shells
• Roof
• Trunk
• Wheel Arch
• Car Floor

33. Before After
Dashboard

34. Inner Door Shells
Before After

35. Roof
Before After

36. Trunk
Before After

37. Wheel Arch
Before After

38. Floor
Before After

39. 2. Sound Proofing

40. Sound Floor Proofing
Material: Waterproof
Membrane Application: Blowtorch
and Roller

41. Soun Proofing of vertical
Surfaces
Material: Texa Application: Blowtorch
and Roller

42. Sound Proofing of Doors
Material: Vibraflex Application: Heatgun and
Roller

43. Sound Proofing of Roof
Material: Groundzero Application: Heatgun and
Roller

44. Soundproof Roof

45. Car´s interior sound Proofing
• Material: Interior Foam

46. 3. Making of structures
• Crates for subwoofers
• Trunk

47. Crates for Subwoofers
Material: Medium Density
Wood Making

48. Crates for Subwoofers
Assembled in the trunk
The Wood is cut to place
the Speakers and Reflex

49. Crates for Subwoofers
They are covered with
synthetic leather And with pile carpet

50. Crates for Subwoofers
• Finished

51. Making of the Trunk
Material: Medium density
wood
Making: It is cut in
accordance with the
measures

52. Making of the trunk
The Wood is affixed into
the trunk
It is covered with
synthetic leather and pile
carpet

53. Making of the trunk
Synthetic leather covered
wood
Trunk done

54. 4. Dashboard´s preparation

55. Dashboard´s Preparation
It is cut The mould is built in wood

56. Dashboard´s Preparation
Wool clothing is placed
Poyester resin is applied

57. Dashboard´s Preparation
The internal part is cut
Polyester filler is applied

58. Dashboard´s Preparation
Once it dries, it is
sanded down
After sanding it down, the
polyester filler is removed
and the mould is done

59. Dashboard´s Preparation
Mould finished
It is covered with
synthetic leather

60. Dashboard´s Preparation
Mould covered Mould done

61. Speakers placed in the
dashboard

62. 5. Inner door Cells

63. Inner door Shells
The inner door Shell is cut And we make a mould in
wood

64. Inner door Shells
The holes for the
speakers are done
And the Wood hoops
placed

65. Inner Door shells
It is covered using wool
clothing Polyester resin is applied

66. Inner Door Shells
The mould is placed on
the Shell we cut before
Filler is placed to get rid
of imperfections

67. Inner Door Shells
The mould is removed
once it has been sanded
down
And it is covered with
synthetic leather

68. Inner Door Shells
The excess of synthetic
leather is removed using a
raspfile
When the mould is done it
is stapled to the shell

69. Inner Door Shell
Moud attached to the shell Speakers are attached

70. Inner Door Shell
Shell mounted on the door

71. • Supplies and Remote
• Speaker wiring
• RCA
6. Wiring routing and connection
of the different parts

72. Supplies and Remote
Output battery with
maxifusible
Routing the wire

73. Supplies and Remote
Go through the left side of
the floor
Connecting the three
batteries

74. Supplies and Remote
It also feeds the
condensor
The distributor of positive

75. Supplies and Remote
Equalizer Amplifier of doors

76. Supplies and Remote
Amplifier of dashboard Amplifier of Subwoofers

77. Speakers wiring
• Have passed them by the middle of the
floor

78. Speakers wiring
Doors Subwoofers

79. Speakers wiring
Filters sound dashboard Filters sound doors

80. RCA wires
Passed through Right
side of the floor RCA wires

81. Wiring diagrams
• Supplies and Remote
• Speakers
• RCA

85. Salidas Output
CH1 a Puertas AL -
CH2 a Puertas AR +
CH3 a Puertas BL -
CH4 a Puertas BR +
CH5 a Salpicadero Right +
CH6 a Salpicadero Left -
CH7 a Subwoofer L -
CH8 a Subwoofer R +
Entradas Input
CH1 Del Radio CD a Ec. L -
CH2 Del Radio CD a Ec. R +
Filtros
Del Amplificador Salpicadero Speakers Left + a Filtro Derecho Amplifier +
Del Amplificador Salpicadero Speakers Left - a Filtro Derecho Amplifier -
De midwoofer + a altavoz medio derecho salpicadero +
De midwoofer - a altavoz medio derecho salpicadero -
De Tweeter + a altavoz agudo derecho salpicadero +
De Tweeter - a altavoz agudo derecho salpicadero -
Del Amplificador Salpicadero Speakers Right + a Filtro Izquierdo Amplifier +
Del Amplificador Salpicadero Speakers Right - a Filtro Izquierdo Amplifier -
De midwoofer + a altavoz medio izquierdo salpicadero +
De midwoofer - a altavoz medio izquierdo salpicadero -
De Tweeter + a altavoz agudo izquierdo salpicadero +
De Tweeter - a altavoz agudo izquierdo salpicadero -
Speakers L + a Filtro Derecho Amplifier +
Speakers L - a Filtro Derecho Amplifier -
Speakers R + a Filtro Izquierdo Amplifier +
Speakers R - a Filtro Izquierdo Amplifier -
Amplificador
Salpicadero
Filtro derecho
Filtro izquierdo
Ecualizador

86. 7. Final Fittings

87. Spectrum meter
• Leaving the horizontal lights

91. More information:
•www.cifpn1.es. →Innovación y calidad
→Transporte y mantenimiento de
vehículos→ Proyecto de sonido

92. Thank you for your attention