EQ-500 - Receiver LUXMAN - Free user manual and instructions

Brand	LUXMAN
Model	EQ-500
Product Type	Stereo Receiver
Power Output	100 W per channel (8 ohms, 20 Hz - 20 kHz)
Frequency Response	10 Hz - 100 kHz (+0/-3 dB)
Total Harmonic Distortion	< 0.008%
Signal-to-Noise Ratio	110 dB (line)
Input Sensitivity	150 mV (line), 2.5 mV (phono MM)
Dimensions (W x H x D)	440 x 150 x 380 mm
Weight	12.0 kg
Power Consumption	250 W (max), 0.5 W (standby)
Power Supply	AC 120 V / 230 V, 50/60 Hz (switchable)
Speaker Impedance	4 - 16 ohms
Inputs	Phono (MM), CD, Tuner, Line 1-4, Tape In
Outputs	Pre-out, Tape Out, Subwoofer Out, Headphone (6.3 mm)
Tuner Bands	FM, AM
FM Sensitivity	1.0 µV (IHF)
Remote Control	Infrared (included)
Material	Brushed aluminum front panel, steel chassis
Cleaning Instructions	Wipe with a soft, dry cloth. Do not use solvents.
Safety Features	Overload protection, thermal shutdown, short circuit protection
Repairability	Modular design; authorized service centers only
Accessories Included	Remote control, AM loop antenna, FM wire antenna, power cord

Frequently Asked Questions - EQ-500 LUXMAN

How do I connect speakers to the EQ-500?

Connect speaker wires to the binding posts on the back panel. Ensure proper polarity (+ to +, - to -) and use speakers with impedance between 4 and 16 ohms.

Can I use a turntable with this receiver?

Yes, the EQ-500 has a dedicated phono input for moving magnet (MM) cartridges. Connect your turntable to the PHONO jacks.

How do I set the FM tuner?

Connect the included FM antenna. Press the TUNER button, then use the tuning knob or remote to search for stations. You can store presets by pressing and holding a preset number.

What is the power output per channel?

The EQ-500 delivers 100 watts per channel into 8 ohms, from 20 Hz to 20 kHz with less than 0.008% THD.

Does it have a headphone output?

Yes, there is a 6.3 mm headphone jack on the front panel. Plugging in headphones mutes the speakers.

How do I clean the receiver?

Unplug the unit and wipe the exterior with a soft, dry cloth. Do not use chemical cleaners or liquids.

Can I use external amplifiers?

Yes, the Pre-Out jacks allow you to connect external amplifiers for bi-amping or higher power.

What is the standby power consumption?

In standby mode, the receiver consumes less than 0.5 watts.

Is the remote control included?

Yes, a full-function infrared remote control is included with the unit.

What should I do if the receiver overheats?

Ensure adequate ventilation around the unit. If the thermal protection activates, turn off the power and let it cool for at least 30 minutes before resuming use.

USER MANUAL EQ-500 LUXMAN

Features of This Unit 2

Names and Functions 4

Connections 8

Block Diagram 10

Specifications 11

Before Asking for Repair Services 12

Precautions

LUSOMS

VACUUM TUBE PHONO AMPLIFIER EQ-500

Installation place

Install this unit in a location where good ventilation and heat radiation are assured.

Especially, the installation of this unit where the direct sunlight is present, where the temperature rises excessively high such as close to a heater, or where it is humid or dusty may cause a malfunction even if heat is efficiently released. Therefore, do not install this unit in such places.

Note:

For heat dispersal, do not install this equipment in a confined space such as a book case or similar unit.

Cautions in connecting cartridges

Connect an analog player or a tone arm with the ground terminal of this unit.

If the grounding terminal is inadequately connected, noises including hum may be generated, resulting in an adverse S/N ratio.

The pin plugs to be inserted in the input terminals of this unit shall be pushed in firmly. If the grounding of the terminal is inadequately connected, noises including hum may be generated, resulting in an adverse effect on the S/N ratio.

Precautions in connecting with other components

When connecting this unit to input/output devices, be sure to turn off the power switch of this unit and all other connected units.

The pin-plugs to be inserted in the input and output terminals of this unit shall be pushed in firmly. If the grounding terminal is inadequately connected, noises including hum may be generated, resulting in an adverse effect on the S/N ratio.

The sound is not generated shortly after the power supply is turned on

This amplifier is equipped with a time muting circuit in order to separate the output circuit. Therefore, no sound is generated shortly after the power supply is turned on.

If the volume control is set to a high sound level before the time muting circuit is canceled, a large sound will suddenly be generated. Please be advised that the volume control shall be set to a low level at first and adjusted after the sound comes out of the speakers.

Repair and adjustment

When repairs and adjustments are needed, please consult with the dealer you bought the unit from.

Cleaning

For cleaning, use a piece of soft cloth to wipe the unit such as cleaning cloth. When the dirt is hard to remove, use a small amount of neutral detergent to wipe, and then wipe the unit with dry cloth. Do not use a solvent like benzine or thinner because such a substance can often damage the exterior.

Features of This Unit

Outline

This unit is a non-feedback CR type phono equalizer amplifier that is configured with the vacuum-tube-equipped SRPP (Shunt Regulated Push-Pull) circuit.

Non-feedback CR type equalizer circuit

Various high sound quality parts that have been carefully selected are used in this non-feedback CR type equalizer circuit.

Input stage SRPP circuit

The SRPP (Shunt Regulated Push-Pull) circuit that features a low impedance output, prolonged life of vacuum tubes, and many other advantages, is used in the phono equalizer section.

Specially selected MC transformer

Four pieces of step-up transformers in which a super permalloy core is independently used are mounted. Independence among MC-HIGH, MC-LOW, left and right respectively has achieved richly expressive sound that can be produced only by boosting with a transformer.

Articulation function

Magnetization of the cartridge or MC transformer that may cause the deterioration of sound quality can be eliminated with the use of reproduced sound signals. This function can exploit the full potential of cartridges and achieve the sound quality with a sense of openness.

Vriable cartridge load impedance

The load resistance variable function from 30 kΩ through 100 kΩ supports a wide variety of cartridges.

Setting of cartridge load capacity

The load capacity setting function with 6 positions supports a wide variety of cartridges. Change in high-pass characteristics allows sound to be adjusted to your favorite tone quality.

Switchover of gains

The gain selection switch with 3 positions (36 dB/38 dB/40 dB) is equipped.

Output transformer

The output transformer with a super permalloy core is equipped to achieve richly and deeply expressive sound. The balanced output is also supported.

Analog meter

Analog meters with a sensitivity selection switch are introduced to make various cartridge outputs available. The meter-off function is also equipped. (When OFF is selected, the meter needles do not move.)

Thin body design

This unit can be installed in a limited space.

Low cut switch

A low-cut filter is provided to restrain woofer fluctuation generated due to warped analog records.

High cut switch

A high-cut filter is provided to eliminate scratch noises and it makes music easier to be listened to.

Stereo/Monaural

The monaural switch which is useful for playing monaural records is provided.

High-inertia power supply

The high-inertia power supply circuit that is a combination of a large-capacity Ol-core-type power transformer and a large-capacity capacitor block is introduced.

Power supply unit

Full wave rectification by a rectifier tube EZ81 (duo diode) and a choke coil are used.

LUXMAN's original OFC wires

Our original OFC wires are used in the internal wiring to achieve smooth signal transmissions thanks to the spiral wrap shielding on each core and the non-plating process on the core wire.

AC inlet

This inlet enables the connection with an external power cable.

Selector relays

The selector relays of the high sound quality which are mounted in the important points of LUXMAN amplifiers also are mounted.

Input/output terminals

18 mm pitch RCA input terminals and Neutrik made XLR terminals allow even a high-performance line cable with large plug to be connected.

Names and Functions

Front panel

1. Operation switch (OPERATION)

This switch turns on and off the power. When connecting the input/output terminals, be sure to turn off this switch.

□ : Off

□: On

2. Operation indicator (OPERATION)

Blinks during warm-up when the operation switch is turned on and lights up when the operation state is activated afterward.

When the indicator is blinking, the output muting circuit is activated to mute sound. Please be advised that the volume control of the input device such as a control amplifier shall be set to a low level at first and adjusted according to your taste after sound comes out of the speakers.

3. Meters

Indicate the levels of outputs with illumination.

4. Meter switch (METER)

Turns on and off the meter illumination and meter display.

• ON

Turns on the meter illumination and meter display.

•OFF

Tums off the meter illumination and meter display.

5. Meter sensitivity selection switch

Selects the sensitivity of the meter display. Set this switch to the low position under normal conditions. When the meter needle swings in a narrow range, set the switch to the high position. When the meter switch is set to OFF, the sensitivity cannot be changed.

- LOW

Use this position under normal conditions.

• HIGH

When the meter needle swings in a narrow range, set the switch to this position.

6. Output mode selection switch (OUTPUT)

Switches the output between unbalanced output and balanced output.

- UNBAL

Sound comes out from LINE-1 and LINE-2.

• BAL

Sound comes out from BAL-LINE.

7. Balanced phase inversion switch (PHASE)

Inverts the phase when the output mode selection switch (OUTPUT) is set to the balanced output. The phase shall be corresponding to the phase of the device to be connected.

• NORMAL ① GROUND

② COLD (-)

③ HOT (+)

- INVERT ① GROUND

② HOT (+)

③ COLD (-)

8. Articulator switch (ARTICULATOR)

This function performs demagnetization by using sound signals.

When a record is played with the articulator set to ON, the cartridge and step-up transformer are demagnetized, and thus the expression of fresh sound is brought back.

When the articulator is set to ON, no sound is generated or the sound becomes remarkably small during playback. This is the sign that the cartridge is being demagnetized. If the articulator is set to OFF at this point, the sound suddenly becomes loud. Therefore, do not turn up the sound volume of the control amplifier or the like. It is recommended to activate the articulator for approximately 30 seconds before the end of a track of the record.

• OFF

Deactivates the articulator. Select this position under normal conditions.

• ON

Activates the articulator.

9. Articulator indicator

Turns on when the articulator is activated.

10. Mode switch (MODE)

• STEREO

Is used for stereo playback. Select this position under normal conditions.

• MONO

Is used for monaural playback.

11. Low cut switch (LOW CUT)

Toggles the low-frequency cutoff function on and off. The speaker (woofer) fluctuation is restrained. When a warped record is played.

• OFF

Provides the normal state.

• ON

Cuts low frequencies of 20 Hz or less. (-6 dB/oct)

12. High cut switch (HIGH CUT)

Toggles the high-frequency cutoff function on and off.

• OFF

Provides the normal state.

• ON

Cuts high frequencies of 8 kHz or more. (-6 dB/oct)

13. Gain selection switch (GAIN)

Selects the gain among 36 dB, 38 dB, and 40 dB. The gain is selectable according to the output voltage of the cartridge.

14. Input impedance control (IMPEDANCE)

Controls the input impedance according to your cartridge. The variable range is from 30 kΩ through 100 kΩ.

15. Input capacitor selection switch (CAPACITIY)

Selects the input capacitor according to your cartridge. Selectable capacitors are the following: 0 pF/50 pF/100 pF/150 pF/200 pF/300 pF

16. Cartridge selection switch (CARTRIDGE)

Selects the input impedance. The selectable positions are MM, MC low and MC high. Select a position in accordance with the input impedance specified in the operating instructions of the cartridge.

Cartridge selection	MM MC high MC low
Impedance 30	kΩ - 100 kΩ 40Ω	2.5Ω

17. Input selection switch (INPUT)

Selects an input terminal on the rear panel.

• 1: Input terminal 1 (INPUT-1) is selected.
• 2: Input terminal 2 (INPUT-2) is selected.
• 3: Input terminal 3 (INPUT-3) is selected.

Names and Functions

Rear panel

1. Signal ground terminals (SIGNAL GROUND)

Are ground terminals for devices to be connected to this unit. These terminals are used to reduce noises when other devices are connected, and are connected to an analog player or a tone arm. These terminals are not designed for safety. There are 3 lines of independent ground terminals to allow for connecting 3 pieces of analog players or tone arms.

2. Input terminals (INPUTS)

Are used as an input terminal to connect a pin-plug cable from an analog player or a tone arm. There are 3 lines of input terminals to connect 3 pieces of analog players or tone arms. The input selection switch can select an input among 1, 2, and 3.

3. Unbalanced output terminals/(OUTPUTS) (LINE-1, LINE-2)

RCA terminals to provide unbalanced audio signals of this unit. Connect these terminals to unbalanced inputs of an input device such as a control amplifier with pin-plug cables. Audio output signals are selected with the output mode selection switch.

LINE-1 and LINE-2 provide the same sound quality.

When the output mode selection switch is set to BAL, no audio signal is outputted.

4. Balanced output terminals (OUTPUTS) (BAL. LINE)

XLR output terminals to provide balanced audio signals from this unit Connect these terminals to balanced inputs of an input device such as a control amplifier with balanced cables. Audio output signals are selected with the output mode selection switch.

When the output mode selection switch is set to UNBAL, no audio signal is outputted.

5. AC inlet (AC IN)

Connects the accessory power cable.

The power shall be supplied from a household wall socket.

LUSOMAN

VACUUM TUBE PHONO AMPLIFIER EQ-500

Connections

graph TD
    A["ANALOG PLAYER ANALOG PLAYER ANALOG PLAYER"] --> B["L R L R L R"]
    A --> C["OUTPUTS"]
    A --> D["CONTROL AMP"]
    A --> E["POWER AMP"]
    B --> F["L R L R"]
    C --> G["L R"]
    D --> H["L R"]
    E --> I["L R"]
    F --> J["CAPUTION"]
    G --> K["INTEGRATED AMP"]
    H --> L["SPEAKER SYSTEM 1"]
    I --> M["SPEAKER SYSTEM 2"]
    J --> N["L"]
    K --> O["L"]
    L --> P["R"]

Before Connecting

Before connecting other devices, connect the jack side of the accessory power cable to the AC inlet of this unit.

Before connection is made, turn off the main power switch of this unit and the power of all other connected devices to prevent accidents due to noises generated unexpectedly.

How to connect power supply

Use the accessory power cable and insert the AC plug in an outlet on the wall in the room where the unit will be installed.

How to connect output devices

1. Surely connect the output terminals of this unit to the line input terminals of a control amplifier or an integrated amplifier using RCA pin-plug cables between the R-channel and L-channel. If the grounding side of the pin-plug cables is inadequately connected, noises including hum may be generated, resulting in an adverse effect on the S/N ratio. Therefore, insert the cables all the way.
2. Do not connect the output terminals of this unit to the phono (PHONO) input terminal of a control amplifier or integrated amplifier. Failure to observe this may not only distort the phono amplifier signals of the integrated amplifier or a control amplifier but also damage the amplifiers. Be sure to connect the terminal to the line input terminal. Do not insert the supplied short pin into the output terminal. If the pin is inserted into the output terminal, no sound will be generated.
3. Sound volume adjustment shall be performed by the connected control amplifier or integrated amplifier because this unit has no sound volume adjustment function. Sound volume shall be set to the minimum when this unit is being connected. If sound volume is set to a high level at power-on, sudden loud sound may be generated, which may cause hearing loss or damage to the speakers.
   Please be advised that the sound volume shall be set to a low level at first and adjusted according to your taste after the sound comes out of the speakers.

Cartridge connection

1. Insert the pin-plugs of an RCA pin-plug cables from an analog player or a tone arm with a cartridge mounted into the input terminals of this unit. At this moment, be sure to make a connection without a mistake between the R-channel and L-channel. If the grounding side of the pin-plug cables is inadequately connected, noises including hum may be generated, resulting in an adverse effect on the S/N ratio.
2. Grounding between analog players or tone arms and this unit is needed. Be sure to connect the ground wires that come from tone arms in parallel with pin-plug cables to the ground terminals of this unit.
   If the ground wires are inadequately connected, noises including hum may be generated, resulting in an adverse effect on the S/N ratio.
3. To listen to music with the analog player connected to the input terminal 1, 2, or 3 and cartridge, select the connected input terminal with the input selection switch.

Do not connect the output of an analog player with phono equalizer embedded to this unit. Failure to observe this may not only distort the amplifier signals but also cause a malfunction.

Connect the output of an analog player with phono equalizer embedded to the line input of an integrated amplifier or a control amplifier.

Block Diagram

graph TD
    subgraph_Input_1["INPUT"]
        direction TB
        A["PHONO-1"] --> B["MM"]
        B --> C["MC HIGH TRANS"]
        C --> D["MC LOW TRANS"]
        D --> E["MC LOW TRANS"]
        E --> F["CAP"]
        F --> G["ECCS3"]
        G --> H["C-R TYPE EQ"]
        H --> I["HIGH CUT"]
        I --> J["LOW CUT"]
        J --> K["ECCS2 ECCS2"]
        K --> L["METER"]
        L --> M["LING"]
        M --> N["BALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
        M --> O["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
        P["PHONO-2"] --> Q["MM"]
        Q --> R["MC HIGH TRANS"]
        R --> S["MC LOW TRANS"]
        S --> T["CAP"]
        T --> U["ECCS5"]
        U --> V["C-R TYPE EQ"]
        V --> W["HIGH CUT"]
        W --> X["LOW CUT"]
        X --> Y["ECCS8"]
        Y --> Z["METER"]
        Z --> AA["LING"]
        AA --> AB["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
        Z --> AC["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
    end

    subgraph_Input_2["INPUT"]
        direction TB
        AD["PHONO-1"] --> AE["MM"]
        AE --> AF["MC HIGH TRANS"]
        AF --> AG["MC LOW TRANS"]
        AG --> AH["CAP"]
        AH --> AI["ECCS3"]
        AI --> AJ["C-R TYPE EQ"]
        AJ --> AK["HIGH CUT"]
        AK --> AL["LOW CUT"]
        AL --> AM["ECCS2 ECCS2"]
        AM --> AN["METER"]
        AN --> AO["LING"]
        AO --> AP["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
        AO --> AQ["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
    end

    subgraph_Input_3["INPUT"]
        direction TB
        AR["PHONO-2"] --> AS["MM"]
        AS --> AT["MC HIGH TRANS"]
        AT --> AU["MC LOW TRANS"]
        AU --> AV["CAP"]
        AV --> AW["ECCS5"]
        AW --> AX["C-R TYPE EQ"]
        AX --> AY["HIGH CUT"]
        AY --> AZ["LOW CUT"]
        AZ --> BA["ECCS8"]
        BA --> BB["METER"]
        BB --> BC["LING"]
        BC --> BD["RALANCE OUT 1. OND 2.COLD(-) 3.IOT(-)"]
    end

    subgraph_Power_Trans["POWER TRANS"]
        direction LR
        BEZSI["EZSI"] --> BF["CHOKE"] --> BG["B1 B2"]
    end

    subgraph_AC_IN["AC IN"]
        direction LR
        RECTHER["RECTHER"] --> BF
    end

    subgraph_HEAT["HEAT"]
        direction LR
        ACC["ACC"] --> BF
    end

Specifications

LUSOMSM

VACUUM TUBE PHONO AMPLIFIER EQ-500

Input sensitivityWhen the gain is set to 36 dB	MM : 4mV/250mV, LINE output 1kHz, Load 50kΩMC-HIGH : 0.44mV/250mV, LINE output 1kHz, Load 50kΩMC-LOW : 0.18mV/250mV, LINE output 1kHz, Load 50kΩMM : 4mV/250mV, BAL output 1kHz, Load 100kΩMC-HIGH : 0.44mV/250mV, BAL output 1kHz, Load 100kΩMC-LOW : 0.18mV/250mV, BAL output 1kHz, Load 100kΩ
Input impedance MM : 30 kΩ - 100 kΩ (variable)
	MC-HIGH : 40ΩMC-LOW : 2.5Ω
GainWhen the gain is set to 36 dB	MM : 36dB (1kHz)MC-HIGH : 55dB (1kHz)MC-LOW : 63dB (1kHz)
RIAA deviation MM : 20 - 20kHz ±0.3dB
	MC-HIGH : 20 - 20kHz ±0.3dBMC-LOW : 20 - 20kHz ±0.3dB
Maximum allowable input voltage1kHz	MM : 300mVMC-HIGH : 34mVMC-LOW : 13mV
Output impedance LINE OUT : 850Ω
	BAL OUT : 850Ω
S/N ratioWhen the gain is set to 36 dB	MM : 76dB (IHF-A)MC-HIGH : 75dB (IHF-A)MC-LOW : 74dB (IHF-A)
Total harmonic distortion1 kHz, 1 V outputWhen the gain is set to 36 dB	0.07%
Channel separation (10kHz) 65dB
Accessories • Power cable	• Safety cautions• Owner's manual
Circuit SRPP, Final stage cathode follower, Non-feedback CR type
Vacuum tube used ECC83 x 4 pieces, ECC82 x 2 pieces, and EZ81 x 1 piece
Power consumption 47 W
Power supply 230 V ~ (50 Hz)
Max. external dimensions 440 (W) x 92 (H) x 397 (D) mm(front side knob of 5mm and rear side terminal of 12mm included in depth)
Weight	12.5 kg (main unit only)

* Specifications and the appearance are subject to change without notice.

Before Asking for Repair Services

While the unit is used, an unusual phenomenon may be confused as a malfunction for a certain reason. Prior to asking our official sole distributor of your country for repair services, please check the table below and read the operating instructions for the subsidiary devices. If the cause of the malfunction cannot be identified, please contact your dealer. When we have once accepted your request for repair services, inspection fees and traveling expenses may be claimed even though the unit is found to be normal.

Problem Cause Solution

No power is supplied even though the power switch is pressed ON.	The power plug is disconnected from the wall outlet, or it is not completely inserted.The power plug is disconnected from the AC inlet, or it is not inserted completely.	Insert the power plug in the wall outlet completely.Securely insert the power plug in the AC inlet completely.
No sound is generated.(small sound)	Connection is not securely performed.Make cable connections securely.The connected input terminal does not match the number selected with the input selection switch.The selected item of the input selection switch of the control amplifier is not appropriate.The volume control of the input device such as a control amplifier is set to the minimum.The used cartridge type does not match with the selected item of the cartridge selection switch.The articulator switch is set to ON.	Match the input terminal with the number of the input selection switch.Select the correct input with the input selection switch of the control amplifier.Adjust the volume control of the input device such as a control amplifier.Select the correct item of the cartridge selection switch according to the used cartridge.Turn down the sound volume, set the articulator switch to OFF, and adjust the sound volume according to the appropriate input impedance after sound comes out.
	The connected output terminal does not match the selected item of the output mode selection switch.The short pin is inserted into an unbalanced output terminal.The setting of the input impedance control does not match the cartridge in use.	Match the output terminal with the item of the output mode selection switch.Pull out the short pin from the unbalanced output terminal.Adjust the input impedance according to the cartridge in use.
Hum noises (boon or zzz noise) are generated.	The grounding side of the connection cable has no contact with the terminal.The grounding of the shell or tone arm is inadequately connected.Induction noise is picked up from a power transformer of another device.The connecting cables are too close to the power cable.	Make cable connections securely.Be sure to connect the ground wire of the shell or tone arm to the ground terminal.Install it distant from other devices.Keep the connecting cables away from the power cable.

MEMO

LUSOMAN

VACUUM TUBE PHONO AMPLIFIER EQ-500

LUXMAN CORPORATION, JAPAN

AG00987E41A

Printed in China