CROWN CTS-1200 TwoChannel Power Amplifier

Crownʼs new CTs series of power amplifiers are remarkable for their loud, punchy sound; sustained, tight bass; and superior protection against overheating and overload. This paper explains the design features behind those advantages. After reading this information, youʼll know why Crown CTs amps sound better than the competition. CTs amplifiers can provide large amounts of power into various loads, such as 2, 4, 8 ohms and 70V. With most power amps, the maximum output power tends to drop as the load impedance increases. But with the CTs series, the power stays the same at almost any impedance. 2-ohm Dual (per Ch.) 250W 4-ohm Dual (per Ch.) 600W 8-ohm Dual (per Ch.) 600W 16-ohm Dual (per Ch.) 300W 70V Dual (per Ch.) 600W 4-ohm Bridge 500W 8-ohm Bridge 1200W 16-ohm Bridge 1200W 140V Bridge 1200W Crown switching power supply for less weight Sustained Power on long-duration signals due to regulated, "stiff” power supplies with incredible energy storage (huge filter capacitors). Extra Hidden Power during high-level transients and during incomplete use of all the channels. Overheating and overload protection thanks to the sophisticated TLC circuitry which compresses the signal only when needed. Compression is controlled not by temperature, but by signal voltage. This keeps the loudness up during compression more than with competitive amps.

The new LD Premium Audio CLASS-H SMPS amplifiers distils all the features to fulfill all your needs, whether youʼre starting a P.A. amplifier project from scratch, or you need to upgrade your present sound reinforcement equipment. In the LD Premium amps, you'll find four 2-channel models, all offering plentiful power levels at low distortion in the range of 1.5 to 6 kilowatts, yet weighing in around 8 kilos and 30 cm deep.

• Model Name: SP1K8
• Output Power 1 kHz, 500
• Crosstalk (20 Hz - 20 kHz): > 75 dB
• Voltage Gain (selectable): 26/32/38 dB
• Input Sensitivity: 2.6/1.3/0.6 V
• Protection: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, ICLTM, PMSTM, SSPTM
• Controls: On / Off Switch, Volume, Voltage Gain, Dual / Link Switchable, Bridge Mode Configuration Switch
• Indicators: Signal, Temperature, ICL (Inteligent Clip Limiting), PMS (Power Management System)
• Connectors:
  • Input: 2 x XLR
  • Line Output: 2 x XLR
  • Speaker Output: 2 x Speakon
• Power Supply: 230 V - 50 Hz
• Dimensions (WxHxD): 483 × 88.9 × 310 mm / 19 × 3.5 ×12.2 inches

Power Rating    

Stereo Mode:
8Ω EIA 1 kHz 1% THD - 500W
4Ω EIA 1 kHz 1% THD - 850W
2Ω EIA 1 kHz 1% THD - 1250W

Bridged Mono:
8Ω EIA 1 kHz 1% THD - 1700W
4Ω EIA 1 kHz 1% THD - 2500W

Damping Factor     Not Specified By Manufacturer
Input Sensitivity     26dB Setting - 3.28V
32dB Setting - 1.60V
Input Impedance     > 10kΩ balanced, or unbalanced
Gain     34.5dB
Frequency Response     20Hz to 20kHz, +/- 0.2dB
Signal-to-Noise Ratio     -106dB
Total Harmonic Distortion (THD)     0.02% @ 2Ω
0.005-0.01% @ 4Ω
0.002-0.01% @ 8Ω
Input Connections     Input: XLR Male, XLR Female and 3-pin detachable terminal blocks (1 each per channel)
DataPort: HD-15, input signal in parallel with XLR input connectors
Output Connectors     Output: Neutrik Speakon (ch 1 wired to both channels) and 5-way binding posts
Controls Front Panel     AC Power Switch
Gain Controls, 21 detents, 1 dB steps (each channel)
Controls (Rear)     Input Mode: Bridge (Yellow), Stereo (Green), or Parallel (Orange)
Gain / Sensitivity: 26dB (Orange), 32dB (Green), or 1.2V (Yellow)
High Pass (each channel): 3Hz (Off), 30Hz (Yellow), or 50Hz (Orange)
Clip Limiter (each channel): Off, On (Yellow)
Indicators     Clip Limiter (each channel): Off, On (Yellow)
Camera Resolution     Flow-thru air path and solid aluminum heat sinks
Power Consumption     120V 50/60Hz - 8.5A
230V 50Hz - 7.5A
Power Requirements     Not Specified By Manufacturer
Dimensions (WxHxD)     19 x 3.5 x 15.63" (48.3 x 8.9 x 39.7cm)
Weight     33.5 lbs (15.2kg)
Specialties     Parallel Dataport, XLR/M and XLR/F connectors for simple loop-through connectivity

BASIC Series - Intelligent Power

BASIC - that's meeting the tightest budgets and professional requirements
in reliability, flexibility and sound. Alone or in combination with the other
products of the Bittner portfolio.
The consequent realisation of the Bittner quality standards indicates once
more our understanding of the contracting business. It underlines our philosophy
that cost consciousness has nothing to do with giving up standards. Compromise
is a word unknown to Bittner Audio!
The incorporation of detent potentiometers, clip limiter, protection circuits for
any imaginable situation, as well as a first-class production process using only
highest-quality components made the BASIC series the choice of most contractors.

Certainly more than basic!

High Tech SMT design
Excellent sound and superior impulse response
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay
XLR Inputs
Speakon and Binding Posts
Clip Limiter
Toroidal transformers
LED Indicators for SIGNAL, CLIP, PROTECT, POWER
Temperature controlled, variable speed, low noise fans
Detent potentiometers
Stereo / Bridged / Parallel Mode
Ground Lift
Robust Steel Chassis
3 Year Warranty

TECHNICAL DATA:
Basic 1200:  2x 600 W @ 4 Ohm
Class:  AB
Frequency Response: 20 Hz - 20 kHz (0 / -0.3 dB)
THD: < 0.03%
Signal-to-Noise Ratio: < -102 dB
Channel Seperation: > 85 dB
Input Sensitivity:  +6 dBu
Input Clipping:  22 dBu
Input Impedance:  20 kOhm
Damping Factor:  > 400 @ 4 Ohm
Cooling:  2x Fan (temp. reg. variable speed)
Weight:  15 kg.
Dimensions : 2 RU / 483 x 88 x 454 mm (19" x 3.5" x 17.9“)