El Palmisté
Overview
The two-way pair of loudspeakers are designed to function as film and music mixing monitors. The design includes an 8″ woofer and a 1″ tweeter mounted against a waveguide to improve its potential. The speakers are vented with a port on each inner side, and have a passive crossover.
Design Goals
- Produce 103 spl to meet film mixing standards (83dB SPL with 20 db of headroom).
- Flat frequency response and maintain detailed sound.
- Good low frequency extension.
- Cost around $500.
- Be somewhat easy to move.
Key Features
- 2-way system
- passive crossover
- vented system
- dome tweeter mounted to waveguide
- f3 of 40hz
- bandwidth of +/- 2.5 dB from 40hz-19khz
Drivers
Scan-Speak Discovery 22W 8″ Woofer
SEAS Prestige 27TDFC 1″ Textile Dome Tweeter
Cabinet
Each wall consists of:
3/4″ ply, 1/8″ loaded vinyl, 3/4″ MDF
Documents
Tests
Frequency Response With Woofer/Tweeter Summation
Horizontal Off Axis Response (15,30,45,60)
Vertical Off Axis (15,30,45,60)
Frequency Response with Inverted Phase
Impedance as compared to an 8 ohm resister with port and total response
Harmonic Distortion
Frequency Response Difference Between Speakers
Waterfall Plot in an Anechoic Chamber
Woofer
Woofer Response
Woofer Horizontal Off Axis (15,30,45,60)
Woofer Vertical Off Axis (15,30,45,60)
Woofer Step Response
Woofer Harmonic Distortion
Woofer Phase
Woofer Response Difference Between Both Speakers
Tweeter Frequency Response
Tweeter Horizontal Off Axis (15,30,45,60)
Tweeter Vertical Off Axis (15,30,45,60)
Tweeter Difference Between Speakers
El Palmisté by Alex Palma is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.