Symetrix 531E, 532E User Manual

531E and 532E Graphic Equalizers

									20	25	31.5	40	50	63	80	100	125	160	200	250	315	400	500	630	800	1K	1.25K	1.6K	2K	2.5K	3.15K	4K	5K	6.3K	8K	10K	12.5K	16K	20K
								+12 +6																															+6 +12
								+6 +3																															+3 +6
531E		LEVEL				CUT FILTERS
	CLIP		U		22	50	18K
GRAPHIC			INPUT		LOW CUT		HIGH CUT
	10dB					5K		42K	0																														0
EQUALIZER								MODE
	0dB			8		115		±12dB
			∞					BYPASS
	-20dB	-		+15	6	260	3K 65K	±6dB
	POWER																																							-6
								-6	-3																														-3
								-12	-6																														-6	-12
									20	25	31.5	40	50	63	80	100	125	160	200	250	315	400	500	630	800	1K	1.25K	1.6K	2K	2.5K	3.15K	4K	5K	6.3K	8K	10K	12.5K	16K	20K
		CH1 LEVEL				CH1 CUT FILTERS			20	25	31.5	40	50	63	80	100	125	160	200	250	315	400	500	630	800	1K	1.25K 1.6K		2K	2.5K 3.15K		4K	5K	6.3K	8K	10K	12.5K	16K	20K

+6 +12

		INPUT		LOW CUT		HIGH CUT		CH1
	CLIP		U	22	50	18K			0	0
	10dB							MODE
			8		5K			42K
	0dB				115			±12dB
532E		∞						BYPASS		-6 -12
	-20dB
			+15	6	260	3K	65K	±6dB

GRAPHIC		20	25	31.5	40	50	63	80	100	125	160	200	250	315	400	500	630	800	1K	1.25K 1.6K	2K	2.5K 3.15K	4K	5K	6.3K	8K	10K	12.5K	16K	20K
EQUALIZER	CH2 LEVEL	CH2 CUT FILTERS

+6 +12

	INPUT		LOW CUT		HIGH CUT		CH2
CLIP		U	22	50	18K			0	0
10dB				5K			MODE
							42K
0dB		8		115			±12dB
	∞						BYPASS		-6 -12
-20dB		+15	6	260	3K	65K	±6dB

POWER

20

25

31.5

40

50

63

80

100

125

160

200

250

315

400

500

630

800

1K

1.25K 1.6K

2K

2.5K 3.15K

4K

5K

6.3K

8K

10K

12.5K

16K

20K

REGARDLESS OF THE SIZE OF YOUR SOUND SYSTEM, good equalization is vital to its performance. That is why we developed the 531E and 532E Graphic Equalizers - as high

quality alternatives to the mediocre “affordable” equalizers available today.

In fact, the 531E and 532E are a purist’s dream - audiophile sound quality, an uncluttered control surface, and rugged reliability in one package. They offer thirty-one filter bands per channel on ISO 1/3rd-octave centers. Through the use of a global range switch, each band delivers either +/- 6dB or +/- 12dB of cut or boost. The grounded center detent position on each band serves as an on/off switch that completely removes that band from the audio signal path. In addition, they sport 12dB per octave High Cut and Low Cut filters. Each has a sweepable cutoff frequency and a control range that extends well into the sub/ultrasonic.

Of course, the features and controls are secondary to the all-important question: How does it sound? Our design team believes that no one should have to settle for “good enough”, so they threw out all the conventional circuit designs and started from scratch. The result: a highly advanced filter topology that delivers extremely low distortion and noise, even at very high signal levels. Consider the following facts. Our proprietary filter technology delivers an extremely low noise floor, ultra-accurate summing, and minimal ringing and phase shift. The total harmonic distortion is less than 0.002%. Translation: the 531E and 532E are clean, clear, and musical-sounding.

To ensure the highest level of performance, we build the 531E/32E to touring standards. Double sided, glass epoxy circuit boards; metal shaft, plastic film slide potentiometers; goldplated XLR connectors, and a heavy duty allsteel chassis deliver rugged reliability. You don’t have to treat these EQs with kid gloves.

The details are worth noting, too. Highcontrast front panel graphics make your control settings easy-to-read - even in a darkened concert hall. Servo-balanced outputs remove all DC offset voltage from the output. This eliminates the need for DC blocking capacitors in the signal path while improving noise, distortion, and low-frequency performance. Of course, both units incorporate a high current, internal power supply with an IEC-type detachable power cord.

Whether you are a professional concert sound engineer, system designer, or musician, contact your nearest Symetrix dealer today. Discover for yourself why the 531E and 532E are the right choice for any professional sound reinforcement application. •

APPLICATIONS

Sound Reinforcement

Installed Sound Systems

FEATURES

Proprietary topology delivers extremely low noise and distortion

31 constant Q bands

High cut and low cut filters

Servo balanced output (eliminates DC offset)

Direct coupled inputs and outputs (superb low frequency response)

Internal power supply with detachable cord

531E/532E

Symetrix Inc. Mountlake Terrace, WA, USA Tel [phone] Fax [phone] www.symetrixaudio.com

531E and 532E Graphic Equalizers

GRAPHIC
531E EQUALIZER	CAUTION
	RISK OF ELECTRIC SHOCK
MANUFACTURED IN	DO NOT OPEN
LYNNWOOD, WA, USA	TO REDUCE THE RISK OF FIRE OR
	WARNING: ELECTRIC SHOCK DO NOT EXPOSE
	THIS EQUIPMENT TO RAIN OR MOISTURE	TYPICAL BALANCED CONNECTIONS					OUTPUT	INPUT
	RISQUE DE CHOC ELECTRIQUE	TIP = HIGH(+) = PIN 2
AC INPUT	AVIS: NE PAS OUVRIR	RING = LOW(-) = PIN 3	1	2	2	1	BALANCED/	BALANCED/
10 WATTS		SLEEVE = GND = PIN 1					UNBALANCED	UNBALANCED
MAXIMUM	SEE OWNERS MANUAL. VOIR CAHIER D’INSTRUCTIONS.			3		3
	No user serviceable parts inside. Refer servicing to qualified service personnel.
	Il ne se trouve a l’interieur aucune piece pourvant entre reparée l’usager.	SLEEVE
FABRIQUÉ AUX E.-U. PAR SYMETRIX INC., LYNNWOOD, WASHINGTON.	S’adresser a un reparateur compétent.	RING	OUTPUT			INPUT	BALANCED	BALANCED
		TIP
RÉFÉREZ TOUTE RÉPARATION À UN TECHNICIEN QUALIFIÉ.

CH1 OUTPUT

CH1 INPUT

GRAPHIC
532E EQUALIZER	CAUTION	BALANCED/	BALANCED/
		UNBALANCED	UNBALANCED
	RISK OF ELECTRIC SHOCK
MANUFACTURED IN	DO NOT OPEN
		BALANCED	BALANCED
LYNNWOOD, WA, USA

	TO REDUCE THE RISK OF FIRE OR
	WARNING: ELECTRIC SHOCK DO NOT EXPOSE
	THIS EQUIPMENT TO RAIN OR MOISTURE	TYPICAL BALANCED CONNECTIONS					CH2 OUTPUT	CH2 INPUT
	RISQUE DE CHOC ELECTRIQUE	TIP = HIGH(+) = PIN 2
AC INPUT	AVIS: NE PAS OUVRIR	RING = LOW(-) = PIN 3	1	2	2	1	BALANCED/	BALANCED/
20 WATTS		SLEEVE = GND = PIN 1					UNBALANCED	UNBALANCED
MAXIMUM	SEE OWNERS MANUAL. VOIR CAHIER D’INSTRUCTIONS.			3		3
	No user serviceable parts inside. Refer servicing to qualified service personnel.
	Il ne se trouve a l’interieur aucune piece pourvant entre reparée l’usager.	SLEEVE
FABRIQUÉ AUX E.-U. PAR SYMETRIX INC., LYNNWOOD, WASHINGTON.	S’adresser a un reparateur compétent.	RING	OUTPUT			INPUT	BALANCED	BALANCED
		TIP
RÉFÉREZ TOUTE RÉPARATION À UN TECHNICIEN QUALIFIÉ.

SPECIFICATIONS

Input/Output
Number of Audio Channels	531E: One, 532E: Two
Maximum Input Level	+21 dBu Balanced
Maximum Output Level	+21 dBu Balanced, +17 dBu Unbalanced
Input Impedance	10k Ohms Balanced, 5k Ohms Unbalanced
Output Impedance	400 Ohms Balanced, 200 Ohms Unbalanced
Performance Data
Frequency Response	10 Hz - 38 kHz (+0 dB, -1 dB)
Dynamic Range	>112 dB
Signal to Noise Ratio	>94 dB (unweighted, ref to +4 dBu, eq in, all bands flat)
THD+Noise (1 kHz - +4 dBu)	<0.002% (10 Hz to 30 kHz measured bw,
	eq in, all bands flat)
Graphic EQ Controls
Frequency Control Range	20 Hz - 20 kHz (31 bands, ISO 1/3rd octave centers)
Cut/Boost Range	± 12 dB (Mode switch up), ± 6 dB (Mode switch down)

	Specifications subject to change without notice.
Cut Filters
Low Cut Filter Slope	12 dB/octave
Cutoff Frequency Range	6 Hz - 260	Hz
High Cut Filter Slope	12 dB/octave
Cutoff Frequency Range	3 kHz - 65 kHz
Physical
Size (hwd)	3.47 x 19 x 8.25 inches, 8.81 x 48.26 x 20.955 centimeters
Shipping Weight	11 lbs (5kg)
Electrical
Power requirements	117V nominal, 105 to 130V AC, 50 to 60	Hz
	230V nominal, 207 to 253V AC, 50	Hz
Power Consumption	531E: 10 watts max., 532E: 20 watts max.

531E and 532E ARCHITECTS AND ENGINEERS SPECIFICATIONS

531E Graphic Equalizer: The Graphic Equalizer (EQ) shall be a single channel unit that shall provide 31 filter bands, on ISO 1/3rd - octave centers. The lowest band shall be centered on 20Hz, the highest on 20kHz. There shall be a front panel mode switch which selects the cut/ boost range of the EQ band faders, and acts as a bypass. The EQ band controls shall be 60mm metal shaft faders. There shall also be separate, sweepablefrequency high-pass and low-pass filters. The unit shall occupy two rack spaces (2U).

The high-pass filter shall have a 12dB/ octave slope with a user-adjustable cutoff frequency range of 6Hz to 260 Hz. The low-pass filter shall also have a 12dB/oct slope with a user-adjustable cutoff frequency range of 3kHz to 65 kHz. A front panel input level control shall provide -∞ (infinity)dB to +15dB of gain adjustment.

When the unit is rendered inoperative by

531E/532E

loss of power, the inputs and outputs will be wired together by a fail-safe bypass relay. The frequency response with all filter bands flat, EQ in, and high-pass and low-pass set to the outside extremes of their ranges, shall be 10Hz to 38kHz (+0dB, -1dB). The total harmonic distortion plus noise shall be less than 0.002% (10Hz - 30kHz, EQ in, all bands flat). The dynamic range shall be greater than 112 dB. The EQ shall accept a maximum input signal of +21 dBu and have a maximum output level of +21 dBu. There shall be a four-segment, LED level meter.

The inputs shall be direct-coupled, active balanced designs terminated with 3-pin XLR (AES/IEC standard wiring) and ¼" TRS. The input circuitry shall incorporate RFI filters. There shall be a servobalanced, direct-coupled output that shall terminate in 3-pin XLR (AES/IEC standard wiring) and ¼" TRS.

The EQ shall be capable of operating by means of its built-in power supply connected to 117V nominal AC, 105-130V, 50-60 Hz (230V nominal AC, 207-253V, 50 Hz where applicable). Power consumption shall be 10 watts maximum. There shall be a rear panel receptacle for an IEC-type detachable power cord. The EQ shall be UL and CE approved. The unit shall be a Symetrix Incorporated model 531E Graphic Equalizer.

532E Graphic Equalizer: The Graphic Equalizer (EQ) shall be a dual channel unit that provides 31 filter bands per channel, on ISO 1/3rd octave centers. The lowest band shall be centered on 20Hz, the highest on 20kHz. There shall be a front panel mode switch which selects the cut/ boost range of the eq band faders, and acts as a bypass. The eq band controls shall be 20mm metal shaft faders. There shall also be separate, sweepablefrequency high-pass and low-pass filters on each channel. The unit shall occupy two rack spaces (2U).

The high-pass filter shall have a 12dB/ octave slope with a user-adjustable cutoff frequency range of 6Hz to 260 Hz, The low-pass filter shall also have a 12dB/oct slope with a user-adjustable cutoff frequency range from 3kHz to 65 kHz. A front panel input level control shall provide -∞ (infinity)dB to +15dB of gain adjustment. When the unit is rendered inoperative by loss of power, the inputs and outputs will be wired together by a fail-safe bypass relay.

The frequency response with all filter bands flat, EQ in, high-pass and low-pass set to the outside extremes of their ranges, shall be 10Hz to 38kHz (+0dB, -1dB). The total harmonic distortion plus noise shall be less than 0.002% (10Hz - 30kHz, EQ in, all bands flat). The dynamic range shall be greater than 112 dB. The EQ shall accept a

maximum input signal of +21 dBu and have a maximum output level of +21 dBu. There shall be a four-segment LED level meter.

The inputs shall be direct-coupled, active balanced designs terminated with 3-pin XLR (AES/IEC standard wiring), and ¼" TRS. The input circuitry shall incorporate RFI filters. There shall be a servobalanced, direct-coupled output that shall terminate in 3-pin XLR (AES/IEC standard wiring) and ¼" TRS.

The EQ shall be capable of operating by means of its built-in power supply connected to 117V nominal AC, 105-130V, 50-60 Hz (230V nominal AC, 207-253V, 50 Hz where applicable). Power consumption shall be 20 watts maximum. There shall be a rear panel receptacle for an IEC-type detachable power cord. The EQ shall be UL and CE approved.

The unit shall be a Symetrix Incorporated model 532E Graphic Equalizer.

Publication ©1997 Symetrix, Inc.

Symetrix Inc. Mountlake Terrace, WA, USA Tel [phone] Fax [phone] www.symetrixaudio.com