Koss ESP950

Koss ESP-950 Electrostatic Stereophone User Manual

Indledning

The Koss ESP-950 Electrostatic Stereophone system provides high-fidelity audio reproduction through electrostatic transducer technology. This manual provides instructions for the proper setup, operation, maintenance, and troubleshooting of your ESP-950 system to ensure optimal performance and longevity.

The system includes the ESP-950 headphones and the E/90 Electrostatic Energizer, designed to work together to deliver a detailed listening experience. The headphones feature a detachable headband and pivoting ear cups for user comfort.

Hvad er der i æsken

Your Koss ESP-950 system package contains the following components:

  • Koss ESP-950 Electrostatic Stereophones (Headphones)
  • Koss E/90 Electrostatic Energizer Amplivligere
  • Detachable Headband
  • 120 VAC strømadapter
  • Battery Pack (for portable use)
  • Audio Connecting Cables (various types for different sources)
  • Lædertaske
Koss ESP-950 Electrostatic Stereophone headphones and E/90 energizer amplivligere.
Image: Koss ESP-950 Electrostatic Stereophone headphones and E/90 energizer amplivligere.
Black leather carrying case for Koss ESP-950 headphones and accessories.
Image: Black leather carrying case for Koss ESP-950 headphones and accessories.

Opsætningsinstruktioner

Follow these steps to set up your Koss ESP-950 Electrostatic Stereophone system:

  1. Assemble the Headphones: Attach the detachable headband to the electrostatic transducers (earcups). Press, slide, and lock each side of the headband into the corresponding slot on the earcups. Ensure a secure connection.
  2. Hands attaching the detachable headband to the Koss ESP-950 earcups.
    Image: Hands assembling the detachable headband to the ESP-950 earcups.
  3. Connect Headphones to Energizer: Locate the 5-pin connector on the headphone cable. Plug this connector firmly into the "PHONES" input on the front panel of the E/90 Electrostatic Energizer.
  4. Tilslut lydkilde: Connect your audio source (e.g., CD player, amplifier, computer) to the E/90 Energizer. The energizer has both RCA line audio inputs on the rear and a 3.5mm input jack on the front. Use the appropriate audio connecting cable provided.
  5. Front panel of the Koss E/90 Electrostatic Energizer with power switch, acoustic level knob, and audio input/phones jacks.
    Image: Front panel of the Koss E/90 Electrostatic Energizer.
    Rear panel of the Koss E/90 Electrostatic Energizer with DC power input and line audio inputs.
    Image: Rear panel of the Koss E/90 Electrostatic Energizer.
  6. Power the Energizer: Connect the 120 VAC power adapter to the DC power input on the rear of the E/90 Energizer and plug it into a wall outlet. Alternatively, for portable use, connect the battery pack to the DC power input.
  7. Tænd: Flip the "POWER ON" switch on the front panel of the E/90 Energizer to the 'on' position. The "DC POWER" indicator light should illuminate.
Video: A visual guide to unboxing and setting up the Koss ESP-950 Electrostatic Stereophone system, including connecting cables, assembling the headphones, and powering the energizer.

Betjeningsvejledning

Når systemet er konfigureret, skal du følge disse retningslinjer for drift:

  1. Adjust Acoustic Level: The E/90 Energizer features an "ACOUSTIC LEVEL" knob. This knob has independent left and right channel controls. Rotate the outer ring for one channel and the inner knob for the other to adjust the volume for each earcup. Adjust to a comfortable listening level.
  2. Brug af hovedtelefoner: Place the headphones over your ears, ensuring the earcups fully enclose your ears for optimal sound isolation and comfort. The pivoting ear cups and adjustable headband allow for a personalized fit.
  3. Lytter: Begin playback from your audio source. Adjust the acoustic level on the E/90 Energizer as needed.
Koss ESP-950 headphones illustrating sound wave projection from the electrostatic transducers.
Image: Koss ESP-950 headphones with an illustration of sound waves.

Opretholdelse

Proper care will extend the life and performance of your ESP-950 system:

  • Rensning: Use a soft, dry cloth to clean the exterior surfaces of the headphones and energizer. Avoid using liquid cleaners or solvents, as these can damage the finish or internal components.
  • Earpad Care: The earpads are made of a synthetic leather material. Wipe them gently with a damp klud om nødvendigt, og lad dem lufttørre helt inden brug.
  • Opbevaring: When not in use, store the headphones and energizer in the provided leather carrying case to protect them from dust, moisture, and physical damage.
  • Miljøforhold: Avoid exposing the system to extreme temperatures, high humidity, or direct sunlight. Electrostatic headphones are sensitive to moisture and static electricity.
  • Kabelstyring: Handle cables carefully. Avoid sharp bends or excessive pulling that could damage the connectors or internal wiring.

Fejlfinding

If you encounter issues with your ESP-950 system, refer to the following common problems and solutions:

ProblemMulig årsagLøsning
Ingen lyd eller intermitterende lydLoose cable connections, energizer not powered, audio source issue, faulty headphone connection.Ensure all cables (power, audio input, headphone) are securely connected. Verify the energizer is powered on (DC POWER light illuminated). Check the audio source for proper operation. Re-seat the 5-pin headphone connector.
Summende eller statisk støjGrounding issue, interference from nearby electronics, static electricity.Ensure the energizer is not placed too close to other electronic devices that emit 60Hz signals. Try using different audio input cables, ensuring they are well-insulated. Avoid using the headphones in overly damp or static-prone environments.
Uneven volume between channelsIndependent L+R acoustic level controls are unbalanced.Carefully adjust both the inner and outer rings of the "ACOUSTIC LEVEL" knob to balance the volume for each channel.
Squealing sound from ear cupInternal issue with the electrostatic transducer.This may indicate a component issue. Refer to the Warranty and Support section for service options.
Audio input cables do not fit RCA jacksRCA jacks may be shallow, requiring specific cable termination types.Use the provided audio cables or ensure any third-party cables have slim RCA terminations designed to fit shallow jacks.

Specifikationer

FeatureSpecifikation
ModelnummerESP950
Audio driver typeElectrostatic Driver
ØreplaceringOver Ear
FormfaktorOver Ear
StøjkontrolLydisolering
ForbindelsesteknologiKablet
Hovedtelefonstik6.35 mm Jack (on energizer)
MaterialeLeather (carrying case)
Varens vægt4.49 pund (samlet pakke)
Produktdimensioner11.5 x 6.5 x 9.5 cm (pakke)
Impedans100000 Ohm
Inkluderede komponenterCables, Battery Pack, Leather Case

Garanti og support

The Koss ESP-950 Electrostatic Stereophone system is backed by a Begrænset livstidsgaranti. This warranty covers defects in materials and workmanship under normal use. Please note that the warranty does not cover misuse of the product.

For warranty service, repairs, or technical support, please contact Koss customer service. You may be required to send the product to Koss for repair, and shipping costs may apply. Refer to the official Koss webwebstedet eller din købsdokumentation for at få de seneste kontaktoplysninger og detaljerede garantivilkår.

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