KRK Classic 5

KRK Classic 5 Professional Bi-Amp 5" Powered Studio Monitor

Instruction Manual

Introduction

Thank you for choosing the KRK Classic 5 Professional Bi-Amp 5" Powered Studio Monitor. This manual provides essential information for the safe and efficient use of your studio monitors. Please read it thoroughly before setup and operation, and retain it for future reference.

Important Safety Instructions

  • Read these instructions.
  • Keep these instructions.
  • Heed all warnings.
  • Follow all instructions.
  • Do not use this apparatus near water.
  • Clean only with dry cloth.
  • Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
  • Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
  • Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
  • Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
  • Only use attachments/accessories specified by the manufacturer.
  • Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
  • Unplug this apparatus during lightning storms or when unused for long periods of time.
  • Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

Package Contents

Upon unpacking, please verify that all items listed below are present and in good condition:

  • 2 x KRK Classic 5 Professional Bi-Amp 5" Powered Studio Monitors
  • 2 x Power Cords
  • 2 x XLR Cables
  • 1 x Gravity Phone Holder
  • Instruction Manual (this document)

Product Overview

Key Features

  • Versatile powered nearfield studio monitor suitable for various music styles.
  • Soft-dome tweeter with optimized waveguide for smooth, pristine, and articulate highs up to 35kHz.
  • Lightweight glass-aramid composite woofer for clear midrange and tight bass.
  • Flat low frequency adjustment for improved accuracy across different environments.
  • Superior low-end extension with an optional +2dB KRK bass boost.

Components

The KRK Classic 5 monitor features a robust design with accessible controls and connections.

Front view of the KRK Classic 5 Studio Monitor

Figure 1: Front Panel View. This image displays the front of the KRK Classic 5 studio monitor, highlighting the yellow glass-aramid composite woofer and the soft-dome tweeter. The front-slotted bass port is visible at the bottom.

Front Panel

  • Woofer: 5-inch glass-aramid composite cone for low and mid-range frequencies.
  • Tweeter: 1-inch soft-dome tweeter for high frequencies.
  • Front-Slotted Bass Port: Designed to reduce boundary coupling and allow flexible positioning.
Rear view of the KRK Classic 5 Studio Monitor with controls and inputs

Figure 2: Rear Panel View. This image shows the rear panel of the KRK Classic 5 studio monitor, detailing the various input connections and adjustment controls for sound customization.

Rear Panel

  • HF Level Adjust: Knob to adjust high-frequency response (-2dB, -1dB, FLAT, +1dB).
  • LF Level Adjust: Knob to adjust low-frequency response (-1dB, FLAT, +1dB, +2dB).
  • Volume: Knob to control the overall output level (-30dB to +6dB).
  • Input Connections:
    • RCA (Unbalanced): For consumer audio equipment.
    • TRS (Balanced): 1/4-inch jack for balanced audio signals.
    • XLR (Balanced): For professional audio equipment.
  • Power Switch: Toggles the monitor's power ON/OFF.
  • AC Power Inlet: For connecting the power cord.

Setup

1. Placement

  • Place monitors on sturdy surfaces, ideally on isolation pads or stands, to minimize vibrations.
  • Position the monitors to form an equilateral triangle with your listening position. The tweeters should be at ear level.
  • Ensure adequate space around the monitors for ventilation, especially at the rear.

2. Connections

  1. Ensure the monitors are powered off and unplugged before making any connections.
  2. Connect your audio source (e.g., audio interface, mixer) to the monitor using one of the available input types:
    • XLR: For balanced professional connections.
    • TRS: For balanced 1/4-inch connections.
    • RCA: For unbalanced consumer-level connections.

    Note: Use only one input type per monitor. Balanced connections (XLR, TRS) are recommended for optimal sound quality and noise rejection.

  3. Connect the provided power cords to the AC Power Inlet on each monitor and then to a suitable power outlet.

3. Initial Power On

  1. Before powering on, set the Volume knob on each monitor to its minimum (-30dB) position.
  2. Power on your audio source first, then power on the KRK Classic 5 monitors using the Power Switch on the rear panel.
  3. Gradually increase the Volume knob on the monitors to a comfortable listening level.

Operating Your Monitors

Adjusting Sound Settings

The KRK Classic 5 monitors offer rear-panel adjustments to tailor their sound to your listening environment.

  • HF Level Adjust: Use this knob to fine-tune the high-frequency response. Adjusting it can help compensate for overly reflective or absorbent rooms.
    • -2dB, -1dB: Reduces high frequencies.
    • FLAT: Neutral high-frequency response.
    • +1dB: Boosts high frequencies.
  • LF Level Adjust: This knob allows you to modify the low-frequency response, useful for managing bass in different room sizes or when using a subwoofer.
    • -1dB: Reduces low frequencies.
    • FLAT: Neutral low-frequency response.
    • +1dB, +2dB: Boosts low frequencies (the acclaimed KRK bass boost).
  • Volume: Controls the overall output level of the monitor. It is recommended to set this to a level that allows your audio interface or mixer to operate at its optimal output.

Experiment with these settings to find the most accurate and balanced sound for your specific studio environment.

Maintenance

  • Cleaning: Disconnect the power cord before cleaning. Use a soft, dry cloth to wipe the exterior surfaces of the monitors. Do not use liquid cleaners or aerosols.
  • Ventilation: Ensure that the ventilation openings are not blocked by dust or debris. Periodically check and clean if necessary.
  • Storage: If storing the monitors for an extended period, keep them in a dry, cool environment, ideally in their original packaging.
  • Avoid Moisture: Do not expose the monitors to rain, moisture, or excessive humidity.

Troubleshooting

ProblemPossible CauseSolution
No sound from monitor.
  • Power cord not connected or power switch off.
  • Volume knob set too low.
  • Audio cable disconnected or faulty.
  • Audio source not sending signal.
  • Check power connections and ensure power switch is ON.
  • Increase the Volume knob.
  • Verify audio cable connections and try a different cable.
  • Check audio source output and settings.
Distorted or unclear sound.
  • Input level too high (clipping).
  • Faulty audio cable.
  • Incorrect LF/HF level adjustments for the room.
  • Reduce the output level from your audio source.
  • Try a different audio cable.
  • Adjust LF/HF Level knobs to FLAT or suitable settings.
Hum or buzzing noise.
  • Ground loop issue.
  • Unbalanced cables used for long runs.
  • Interference from other electronic devices.
  • Ensure all equipment is plugged into the same power strip or outlet.
  • Use balanced XLR or TRS cables.
  • Move monitors or cables away from power supplies, transformers, or other noisy electronics.

If the problem persists after trying these solutions, please contact KRK customer support.

Specifications

BrandKRK
Model NameClassic 5
Speaker TypeWoofer, Tweeter
Woofer Diameter5 Inches
Tweeter Diameter1 Inches
Speaker Maximum Output Power25 Watts
Frequency ResponseUp to 35 KHz
Connectivity TechnologyXLR, TRS, RCA
Power SourceCorded Electric
Item Weight24.9 pounds (for the pair, packaged)
Product Dimensions24 x 12 x 12 inches (packaged dimensions)
MaterialAramid (for woofer cone)
Indoor/Outdoor UsageIndoor
UPC744271618495

Warranty and Support

For detailed warranty information, please refer to the warranty card included with your product or visit the official KRK website. KRK provides customer support for technical assistance, service, and parts.

Manufacturer: KRK

Website: www.krksys.com

Contact: Please visit the KRK website for contact information and support resources.

© 2024 KRK Systems. All rights reserved.

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