HD669 - Headphones Superlux - Free user manual and instructions

Product Type	Wired Over-Ear Headphones
Brand	Superlux
Model	HD669
Driver Type	Semi-open dynamic
Frequency Response	10 Hz - 20 kHz
Impedance	32 ohms
Sensitivity	95 dB
Cable Length	3 m (straight cable)
Connector Type	1/8" (3.5 mm) gold-plated with 1/4" (6.3 mm) adapter
Weight	270 g (without cable)
Dimensions (HxWxD)	200 x 180 x 100 mm
Color	Black / Gray
Design	Semi-open circumaural
Usage	Studio monitoring, home listening
Controls	None (passive)
Noise Reduction	Passive isolation (semi-open)
Foldable	Yes (swiveling ear cups)
Carrying Case	Not included
Care Instructions	Clean with dry soft cloth; avoid solvents
Safety Warnings	Use at moderate volume to prevent hearing damage
Spare Parts Availability	Earpads, cables, headband cushion available from retailer
Country of Origin	China

Frequently Asked Questions - HD669 Superlux

How do I connect the Superlux HD669 to my device?

The HD669 comes with a 3.5mm plug; use the included 6.3mm adapter for larger jacks. Insert firmly into your headphone jack.

What is the impedance of the HD669 and does it need an amplifier?

Impedance is 32 ohms. It can be driven by most smartphones and laptops without an external amp, but a dedicated headphone amplifier may improve sound quality.

What is the frequency response of the Superlux HD669?

The frequency response is 10 Hz to 20 kHz, covering the full audible spectrum.

Are the HD669 comfortable for long listening sessions?

Yes, the over-ear design with plush pads and a self-adjusting headband provides comfort for extended use.

How durable are the Superlux HD669 headphones?

They are built with a sturdy plastic and metal frame; the cable is replaceable, enhancing longevity.

Can I replace the earpads on the HD669?

Yes, earpads are replaceable. They are attached via a ring; gently pry off and snap on new pads. Compatible aftermarket pads are available.

What is the warranty period for Superlux HD669?

Superlux typically offers a 2-year warranty against manufacturing defects. Check with your retailer for exact terms.

Are these headphones compatible with mixers and audio interfaces?

Yes, the 6.3mm adapter allows use with professional gear; the 32-ohm impedance is suitable for most headphone outputs.

How is the sound quality of the HD669?

The HD669 delivers a balanced sound with slight emphasis on bass, suitable for monitoring and casual listening. Semi-open design provides airy soundstage.

Do the HD669 isolate noise well?

Being semi-open, they offer only moderate passive isolation; some ambient sound can be heard. They are not suitable for noisy environments.

USER MANUAL HD669 Superlux

- Slide the headpads to an local position.

- Put on the headphones and rest the headpads on your head

- Replacing the car pads by simply remove the old one. Restore the new set of pads slowly along the edge of the enclosures.

- To change the cables, simply unplug the cable at the connectors as the same as headphone jacks. Restore with another compatible cable

- Put on cable clip to secure detachable cable from pulling out by incident.

Superlux®

HD669

Instruction Manual 01

HD669 Studio Standard Headphones Branded frequency response for electronic audio sound application Use as monitoring headphones in a body environment Previous and TV applications film and stereo applications Reporting applications

Instruction Manual Features

The HD669 is a closed back dynamic headphones. Sound quality meets the demanding professional recording studio. Patronod sturdy structure provides long-lasting dorsollity oven in challenge condition. Light weight and optimized mechanical pressure provides long-term wearing comfort. Equipped with 2 straight cables, short one is 1 meter long for part size sound source on-the-inove applications. Long one is 3 meter long, for professional monitoring applications. Inter-connect both cables, for even more distant requires. Included cable can secure detachable cable from pulling out by incident.

• Professional monitoring headphones
- High resolution drivers
- Precision tuned acoustic chamber
- Extended bass response
- Patented durable structure
- Comfort auto fit head pads
- Comfortable, long-lasting car oads
- Detachable, single side cable
- Optimized headband pressure
Lightweight
- Cable clip included

Technical data

Frequency response 10 - 30.000 Hz

Acoustic principle Dynamic, closed-back

Nominal impedance 56 Ω

Sound pressure level at 1K Hz 98dB SPL (1mW)

Long-term max. Input power 200 mW

≤0.3%

I部部长 caiper pressure Approx. 5N

Weight (without cable) 225g / 7.9oz

Plug 3.5 mm scroo gold coated plug

Adapter 3.5mm to 6.3 stereo gold coated plug

Connecting cable Detachable 1M and 3M, straight, Φ3.5

Attention

Hearing Damage

Avoid Using headphones with the volume turned up for an extended period of time. Following are guide line by Occupationa Safety and Health Administration and CDC, NOSH

c13 SPL	Occupational noise exposure 1991	NIOSH and CI2C 2002
85		8 hours
86	8 hours (90dB SPL)	4 hours
91	6 hours (92dB SPL)	2 hours
94	4 hours (95dB SPL)	1 hour
97	3 hours	30 min
100	2 hours	15 min
103	1.5 hours (132dB SPL)	7.5 min
106	1 hour (105dB SPL)	< 4 min
109	30 min (110dB SPL)	< 2 min
112		~ 1 min
115	15 min	~ 30 sec

■ 1. Adjustable
- 2. Patent Structure
- 3. Detachable
■ 4. Far Pads, 1 pair
- 5. I am D sk, 1 pair
- 6 Cable Clip

Ear Pac Kit EPK602 incl.: 4 & 5 Order your EPK602 through Superlux authorized dealers.

Replacing the car pads

The ear pads have to be replaced from time to time for hygienic reasons.

EPK602 includes 1 pair of car pads and 1 pair of foam disk.

Cleaning the headphones

To clean the headphones, use a soft damp cloth. If necessary, the headphones can be cleaned with soapy water (use a mild cleanser such as washing-up cloud).

Note: Do Not use solvent-containing cleansers!

Included

Recommended Product

• HABD Headphone amplifier

■ 3M Coil Cable FD3W83

Superlux®

HD669

Contact

Marketing and sales

Superlux Taiwan

[phone]

[e-mail]

Manufacturing & logistics

Superlux Enterprise

Development(Shanghai)Co., Ltd.

Instruction Manual 01

Adapter 3.5mm to 6.3 stereo gold coated plug