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Table of Contents
- 1 Package Contents
- 2 Most Common Applications and Listening Distances
- 3 System Block Diagrams
- 4 Electronics Panel Picture
- 5 Analog Input Stage
- 6 Acoustical Controls
- 7 Other Controls
- 8 System Use
- 9 Technical Specifications
- 10 Acoustical Measurements
- 11 Accessories and Options
- 12 EC Declaration of Conformity
- 13 Safety and Warnings
- 14 Maintenance and Servicing
- Download this manual
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Table of Contents
Related Manuals for Klein + Hummel O 300
Summary of Contents for Klein + Hummel O 300
- Page 1 O 300 (D) Active Mid-Field Monitor Operating Manual O 300 O 300 D Part Number: 520542 Version: 02 Date: 29-May-2009 Language: English...
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Page 3: Package Contents
Depending on the size, Klein + Hummel’s three-way systems are designed for use as near field monitors through to large main control room monitors. They can be used in music, broadcast, and post production studios for tracking, mixing, and mastering. -
Page 4: System Block Diagrams
Refer to the detailed product specifications section for information on the crossover frequencies, amplifier power, and driver types. When the Pro C 28 external controller is used on an O 300 D, all internal limiters are bypassed, except the bass channel peak limiter. -
Page 5: Electronics Panel Picture
Klein + Hummel Electronics Panel Picture O 300 electronics panel O 300 D electronics panel O 300 (D) Operating Manual... -
Page 6: Analog Input Stage
Analog Input Stage The O 300 input stage is a 14 k Ω electronically balanced type on a female XLR socket. The O 300 D input stage is a 14 k Ω transformer balanced type on a female XLR socket. Signal... - Page 7 BNC transmission line. This can be realized using T-piece and a 75 Ω terminator (not supplied). XLR digital input connections on the O 300 D An AES3id or S/P-DIF signal (applied to the BNC connector) can be looped using a T-piece connector (not supplied) for connecting additional monitors to the input signal.
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Page 8: Acoustical Controls
O 300 D To connect multiple O 300 D monitors together, use BNC T-piece connectors (not supplied) - see picture below. in The digital input can be applied to either the XLR or BNC input of the first loudspeaker in the chain. BNC connectors should be used for the rest of the loudspeakers in the chain. - Page 9 The input attenuator control allows the loudspeaker to be matched to a wide range of equipment outputs whilst maintaining the desired acoustical output. In the O 300 D, the attenuator affects the output level as it is positioned after the DAC. As with any other component in the audio chain, it is best to use the lowest gain for the application so as to minimize amplification of the preceding equipment’s source noise.
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Page 10: Other Controls
The maximum level that the O 300 electronic balanced input stage can accept is +20 dBu (7.75 V). The maximum level that the O 300 D transformer balanced input stage can accept is +24 dBu (12.3 V). To avoid clipping the input stage, decrease the amount of input attenuation. - Page 11 Klein + Hummel On the O 300 D there is the facility to connect a Pro C 28 using the power amplifier direct input. This adds the possibility to compensate the response for amplitude and phase anomalies resulting from the monitor’s placement in the room or the acoustic conditions of the room.
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Page 12: System Use
Angled metal brackets on the rear panel can be used to mount the cabinet on a wall or as handles to lift the loudspeaker. Note: Do not place the O 300 (D) face down on a flat surface as the midrange driver will be damaged. - Page 13 Failing this, appropriate electronic time delays should be added to compensate for time of flight differences. This can either be a Pro C 28 inserted into the signal chain before an O 300 or a Pro C 28 attached to the power amplifier direct input on an O 300 D.
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Page 14: Technical Specifications
Anthracite (RAL 7021) or Anthracite (RAL 7021) or silver (RAL 9006) silver (RAL 9006) Color: custom User specified RAL User specified RAL Baffle cover Optional metal grille Optional metal grille *THD+N < 0.1 % with limiter deactivated O 300 (D) Operating Manual... -
Page 15: Acoustical Measurements
O 300 (D) group delay O 300 (D) horizontal directivity plot O 300 (D) vertical directivity plot O 300 (D) distortion at 95 dB SPL O 300 (D) Maximum SPL at 1 m (3% and 1%) (Yellow: THD, Red: 2 harmonic, Green: 3 harmonic) -
Page 16: Accessories And Options
LH 25 (W) – “U” bracket LH 28 (W) – Tripod stand adapter LH 29 – TV spigot adapter LH 33 – Tilt connector LH 36 – Tilting adapter LH 37 – Tripod flange adapter O 300 (D) Operating Manual... - Page 17 LH 25 + LH 47 + LH 46 Off a Lighting or Truss Bar LH 42 + LH 29 Safety Connection C 15 Detailed mechanical drawings of these accessories can be found on line at www.klein-hummel.com. O 300 (D) Operating Manual...
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Page 18: Ec Declaration Of Conformity
As the original packing is primarily designed to get the loudspeaker from the factory to the end user, it is highly recommended that a flight case is used if the loudspeaker is regularly moved between locations. One O 300 (D) can be packed in the flight case. -
Page 19: Safety And Warnings
• Do not use accessories and options with this product that are not approved by Klein + Hummel. • Mounting hardware must be attached to the appropriate hardware and attachment points rated and intended for such use. -
Page 20: Maintenance And Servicing
• If the main fuse blows, the product should be checked by a Klein + Hummel certified service engineer. Guarantee This product comes with a guarantee, a copy of which is enclosed with this product. - Page 22 • “Mathematically Modeled Dispersion” and “MMD” Other company, product, or service names may be trademarks or service marks of other organizations. Klein + Hummel reserve the right to change product specifications without notice. Exceptions and omissions excluded. K+H Vertriebs- und Entwicklungsgesellschaft mbH Auf dem Kessellande 4a, 30900 Wedemark, Germany.