Specifications & Characteristics

GENERAL SPECIFICATIONS RX-7-164, RX-7-248 AND RX-7-328

Frequency Response (Measurement of source impedance 150 ohms)

+0dB, -0.5dB; 50Hz to 20kHz +0dB, -2.0dB; 20Hz to 30 kHz

Total Harmonic Distortion

Less than 0.5% at +4dB* output at 1kHz

Hum and Noise (20Hz to 20kHz, input termination of 150 ohms, Input Level Switches at -60dB, Input Trim at 0)

-128dB* Equivalent Input Noise

-130dB* Equivalent Input Noise, IHF A weighted

-64dB* (68dB S/N) Group Out, Group and one Input Fader

at nominal level

-64dB* (68dB S/N) Program Out, PGM Master and Group controls at max. level, all Group Faders and one Input Fader at nominal level

-64dB* (68dB S/N) FB Out or Echo Send, FB Master or Echo Send control and one FB or Echo mix control at nominal level

Maximum Voltage Gain

84dB CH IN to Group Out

84dB CH IN to Program Out

84dB CH IN to FB Out 94dB CH IN to Echo send 20dB AUX IN to Group Out 20dB ECHO IN to Group Out 10dB SUB IN to Group Out

Equalization (CH IN, AUX IN, ECHO IN)

LOW	100Hz	Shelving (±15dB maximum)
MID	200Hz to 5kHz, variable Peaking (±15dB maximum)
HIGH	10kHz	Shelving (±15dB maximum)

High Pass Filter

12dB/octave roll off switchable for 3dB down at 60Hz or

120Hz

Oscillator/Generator

Switchable sine wave at 400Hz, 1kHz and 10kHz (1.0%

Total Harmonic Distortion at +4dB* output) or pink noise.

Inputs and Outputs

See accompanying tables of Input Characteristics and

Output Characteristics.

Crosstalk

-60dB at 1kHz, input to output

VU Meters (0VU = +4dB* output)

RX-7-164

4 large, illuminated meters; switchable for Group or Program

3 smaller, illuminated meters; switchable for 2 Foldback or 2 Echo and CUE or TB

RX-7-248

4 large, illuminated meters for Group

4 large, illuminated meters, switchable for Program 1—5,

2—6, 3—7, and 4—8

3 smaller, illuminated meters; switchable for 2 Foldback or 2 Echo and CUE or TB

RX-7-328

4 large, illuminated meters for Group

4 large, illuminated meters, switchable for Program 1—5,

2—6, 3—7, and 4—8

6 smaller, illuminated meters for 2 Foldback, 2 Echo, CUE and TB

Peak Indicators

LED built into each input turns on when the pre-Fader level reaches 10dB above nominal.

LED built into each Group, FB, Echo and Program Out turns on when the output level reaches 10dB above nominal.

Phantom Power

48V DC is applied to balanced input transformers for powering condenser microphones.

Finish

Black panel, rosewood trim, padded armrest

Dimensions (W×D×H)

RX-7-164

40-3/8" × 32-3/8" × 13-7/8" (1026 × 822 × 353 mm) RX-7-248

55-5/8" × 33-1/4" × 15" (1412 × 843 × 382 mm)

RX-7-328

66-5/8" × 32-3/4" × 15" (1691 × 833 × 382 mm)

Weight

RX-7-164; 78kg (171 pounds)

RX-7-248; 109kg (240 pounds)

RX-7-328; 138kg (303 pounds)

Power Consumption

RX-7-164; 120VA maximum

RX-7-248; 145VA maximum

RX-7-328; 170VA maximum

Accessory

Talkback Microphone

*0dB is referenced to 0.775V RMS

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