Install a sound system in a Opel Astra

Who have taken part in this project?

• Students

• Teachers

• Partner Enterprises

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

Teachers

Partner Enterprises

And all this with a common goal

With a standard car… …Do something that sounds very well.

“Even the longest trip begins with a step”.

(chinese proverb)

Methodology

Methodology

Activities

The evaluation

the evaluation

Self-assessment. Targets

Coevaluation. Rubrics

Heteroevaluation. Technical part

Group capabilities

Social skills (of the group)

The technical part

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

1. Interior Dismantling

• Dashboard

• Inner Door Shells

• Roof

• Trunk

• Wheel Arch

• Car Floor

Before After

Dashboard

Inner Door Shells

Before After

Roof

Before After

Trunk

Before After

Wheel Arch

Before After

Floor

Before After

2. Sound Proofing

Sound Floor ProofingMaterial: Waterproof Membrane Application: Blowtorch

and Roller

Soun Proofing of vertical Surfaces

Material: Texa Application: Blowtorch and Roller

Sound Proofing of Doors

Material: Vibraflex Application: Heatgun and Roller

Sound Proofing of Roof

Material: Groundzero Application: Heatgun and Roller

Soundproof Roof

Car´s interior sound Proofing

• Material: Interior Foam

3. Making of structures

• Crates for subwoofers

• Trunk

Crates for Subwoofers

Material: Medium Density Wood Making

Crates for Subwoofers

Assembled in the trunkThe Wood is cut to place the Speakers and Reflex

Crates for Subwoofers

They are covered with synthetic leather And with pile carpet

Crates for Subwoofers

• Finished

Making of the Trunk

Material: Medium density wood

Making: It is cut in accordance with the measures

Making of the trunk

The Wood is affixed into the trunk

It is covered with synthetic leather and pile carpet

Making of the trunk

Synthetic leather covered wood

Trunk done

4. Dashboard´s preparation

Dashboard´s Preparation

It is cut The mould is built in wood

Dashboard´s Preparation

Wool clothing is placedPoyester resin is applied

Dashboard´s Preparation

The internal part is cutPolyester filler is applied

Dashboard´s Preparation Once it dries, it is sanded down

After sanding it down, the polyester filler is removed and the mould is done

Dashboard´s Preparation

Mould finishedIt is covered with synthetic leather

Dashboard´s Preparation

Mould covered Mould done

Speakers placed in the dashboard

5. Inner door Cells

Inner door Shells

The inner door Shell is cut And we make a mould in wood

Inner door Shells

The holes for the speakers are done

And the Wood hoops placed

Inner Door shells

It is covered using wool clothing Polyester resin is applied

Inner Door Shells

The mould is placed on the Shell we cut before

Filler is placed to get rid of imperfections

Inner Door ShellsThe mould is removed once it has been sanded down

And it is covered with synthetic leather

Inner Door Shells

The excess of synthetic leather is removed using a raspfile

When the mould is done it is stapled to the shell

Inner Door Shell

Moud attached to the shell Speakers are attached

Inner Door Shell

Shell mounted on the door

• Supplies and Remote

• Speaker wiring

• RCA

6. Wiring routing and connection of the different parts

Supplies and Remote

Output battery with maxifusible

Routing the wire

Supplies and Remote

Go through the left side of the floor

Connecting the three batteries

Supplies and Remote

It also feeds the condensor

The distributor of positive

Supplies and Remote

Equalizer Amplifier of doors

Supplies and Remote

Amplifier of dashboard Amplifier of Subwoofers

Speakers wiring• Have passed them by the middle of the

floor

Speakers wiring

Doors Subwoofers

Speakers wiring

Filters sound dashboard Filters sound doors

RCA wires

Passed through Right side of the floor RCA wires

Wiring diagrams

• Supplies and Remote

• Speakers

• RCA

Salidas OutputCH1 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 InputCH1 Del Radio CD a Ec. L -CH2 Del Radio CD a Ec. R +

FiltrosDel 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

7. Final Fittings

Spectrum meter

• Leaving the horizontal lights

More information:

•www.cifpn1.es. →Innovación y calidad →Transporte y mantenimiento de vehículos→ Proyecto de sonido

Thank you for your attention