From left to right: ERM-1: 9.5" deep x 7.75" wide x 13.5" high ERM-6.2: 11 "deep x 9.25" wide x 16" high ERM-6.3: 9.5" deep x 8.5" wide x 26" high ERT-8.3: 13.25" deep x 10" wide x 43.75" high, including feet (42.5" high without feet)

ERT-8.3:

• Two 8" Woofers, Two 5.25" woofers, one 25mm tweeter

• Sensitivity: 89db (2.83volts @ 1 Meter)

• Recommended amplifier power: 50-500 Watts RMS

• Frequency response: 45hz-20Khz +/-2db

• Selectable switches:

1. Tweeter control - Set to ' -2' to cut tweeter level 2db, set to '+2' to boost tweeter level 2db. Leave at '0' for reference level.

2. Midrange control - Set to ' -2' to cut tweeter level 2db, set to '+2' to boost tweeter level 2db. Leave at '0' for reference level.

3. Boundary compensation - In 'On' position, the bass EQ slope changes to compensate for 'booming' sound that may come from being close to a wall or piece of furniture. In 'Off' position, the bass EQ remains unaffected.

(There is no 'right' or 'wrong' settings for these switches. They are simply there to allow you to fine tune the sound of the speakers to your room or your personal taste.)

• 13.25" deep x 10" wide x 43.75" high, including feet (42.5" high without feet)

• 80 lbs (boxed)

ALL ERM/ERT SPEAKERS:

Drivers

• Proprietary tri-fiber composite cone is light weight and rigid with low resonance

• NBR surround for enhanced cone edge termination

• Proprietary high performance motor structure

• Integrated copper and aluminum shorting rings to reduce distortion and 2nd and 3rd order harmonics

• Flat progressive rate spider with venting under spider

• Cast aluminum frame

• Wide surround silk dome diaphragm

• High power motor structure
integrated heat-sink mounted on motor structure

• Ferro-fluid cooled voice coil

• Internally damped, low resonance rear chamber

• 4 ohms

Precision Crossover

• Asymmetrical 4th order Linkwitz Riley crossover

• Switchable tweeter level adjustment (+2, 0, -2db)

• Switchable boundary effect Compensation

• Precision metal film capacitors

• Low DCR air core inductors

Additional Features

• Dual speaker terminals for biamped operation

• Critically braced and highly damped MDF cabinet

• Milled terminal recess with integrated milled aluminum 6mm jack plate

• 6mm milled aluminum low diffraction front baffle plate

• Magnetically mounted, acoustically transparent grill

• Non-reflective black satin lacquer finish

ERT/ERM/ERD Manual
(This is a large PDF file, and may take a few moments to download)

ERT-8.3. $799