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When it comes to power amps, it?s all about power, reliability and price.
Thankfully, TAPCO?s J?1400?delivers on all fronts. In developing these amps, we devised a rigorous power amp test which was literally un-passable by dozens of name-brand amps on the market today. Our new Juice Series passed the test with flying colors. It?s pure premium. Midrange and highs are clean and dynamic. Bass is tight, clean and has the authority one would expect from larger, more expensive power amps.
Specifications
Continuous Sine Wave Average Output Power per channel, both channels driven, 20 Hz to 20 kHz
* 2 ohms: 800 W
* 4 ohms: 450 W
* 8 ohms: 310W
Bridged Mono Operation, 20 Hz to 20 kHz
* 4 ohms: 1400 W
* 8 ohms: 900 W
Note: Power ratings are specified at 120 VAC line voltage.
Power Bandwidth
* 5 Hz to 50 kHz (+0, -3 dB)
Frequency Response
25 Hz to 25 kHz (+0, -1 dB)
Distortion
* THD and SMPTE IMD; 20Hz to 20kHz < 0.03% @ 8 ohms
Signal-to-Noise Ratio
* 100 dB below rated power into 4 ohms
Channel Separation
* 90 dB @ 1 kHz
Damping Factor
* 300 @ 1 kHz and below
Input Impedance
* 20 kO balanced
* 10 kO unbalanced
Input Sensitivity
* 1.15 V (+3.4 dBu) for rated power into 4 ohms
Gain
* 32 dB
Maximum Input Level
* 9.75 Vrms (+22 dBu)
Turn On Delay
* 2.5 seconds
Subsonic Filter
* 9 dB @ 30 Hz
Topology
* Class AB
Cooling
* Dual variable-speed fans with back to front airflow
Indicators
* Channels A and B
SIG (Signal Present), OL (Overload) POWER Current Consumption
* Idle 0.5 A
* Musical Program 5.1 A
* Musical Program 6.7 A
* Musical Program 10.6 A
AC Power Requirements
* U.S. 120 VAC, 60 Hz
* Europe 240 VAC, 50 Hz
* Japan 100 VAC, 50/60 HzKorea 220 VAC, 60 Hz
Physical Dimensions and Weight
* Height: 3.5 in/89 mm
* Width: 19.0 in/483 mm
* Depth: 15.7 in/400 mm
* weight: 48.5 lb/22.0 kg
Features
* J?1400 1400W @ 4 Ohms bridged
* Easily switchable mono/stereo/bridged mono operating modes
* Separate Speakon? outputs for Channel A and Channel B
* Third Speakon output for mono bridged applications: also provides both output channels on a single NL4 connector
* 30Hz subsonic filter for low-frequency speaker protection
* Handles for easy transport and protection of level controls
* Defeatable clip limiter
* Front-panel signal and overload indication
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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
| L2400 750W-750W 4ohm (500W-500W 8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation. |
A full model revision takes Yamaha's high-end PC-N power amplifiers to the next level - the PC-1N Series. The new PC-1N Series amplifiers feature an extraordinarily solid low end, rich midrange, and superbly defined highs. They also deliver fast response and exceptional stability even in the face of serious power supply limitations. Refinements throughout this expanded five-model lineup make these amplifiers the new benchmarks for quality, reliability, and versatility in professional applications. Frequency Response: 10 Hz – 40 KHz. Output Power: 2 x 500 Watt / 8Ω RMS, 2 x 800 Watt / 4Ω RMS, 1600 Watt / 8Ω bridge RMS. Weight: 12,5 Kg.
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Number of Channels: 2
Output Power: (per channel)
8 ohms 450W
4 ohms 850W
2 ohms 1550W
Output Power: (bridged)
8 ohms 1700W
4 ohms 3100W
THD%: (@1dB below max output)
@ 1kHz | Crown XTi2002 Specifications:
* Output Power 2 ohms Stereo (per ch): 1000W
* Output Power 4 ohms Stereo (per ch): 800W
* Output Power 8 ohms Stereo (per ch): 475W
* Output Power 8 ohms Bridged-Mono: 1600W
* Output Power 4 ohms Bridged-Mono: 2000W
* Sensitivity (for full rated power at 4 ohms): 1.4 Vrms
* Frequency Response (at 1 watt, 20 Hz - 20 kHz): +0 dB, –1 dB
* Signal-to-Noise Ratio (below rated 1kHz power at 8 ohms): 100 dB (A weighted)
* Total Harmonic Distortion (THD):
* Damping Factor 20 Hz to 1 kHz: > 500
* Crosstalk (below rated power): 20 kHz - 1 kHz: > 70 db
* Input Impedance (nominal): 20k ohms balanced, 10k ohms unbalanced
* Maximum Input Signal: +22 dBu typical
* Operating Temperature: 0°C to 40°C at 95% relative humidity (non-condensing)
* Level Control: Two front-panel rotary level controls, one for each channel
* Power Switch Control: On/Off switch applies AC power to the amplifier
* Sel/Prev/Next Buttons Controls: Three buttons near the LCD screen that are used to access menu items and front panel lockout
* LCD Screen: Backlit liquid crystal display that shows preset and processing status
* Signal Indicator: Green LED, one per channel, illuminates when a very low-level signal is present at input (may be used for troubleshooting cable runs).
* –10 Indicator: Green LED flashes when output signal exceeds -10 dB below clip.
* –20 Indicator: Green LED flashes when output signal level exceeds -20 dB below clip.
* Ready Indicator: Green LED, one per channel, illuminates when the amplifier is ready to produce audio.
* Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion
* Temp Indicator: Red LED, one per channel, illuminates under excessive temperature conditions
* Power Indicator: Blue LED illuminates when the amplifier has been turned on and has power
* Input Connectors: XLR, one per channel
* Link/Out Connector: Loop-thru signal from input connector for linking another amplifier, one per channel.
* Output Connectors: Two Neutrik Speakon NL4MP output connectors. Channel-1 Speakon is wired with Ch. 1 and Ch. 2 outputs for use with optional single 4-conductor cable. Two binding post outputs (in parallel with Speakon® connectors).
* HiQnet™ USB Connector: Type B, connects to HiQnet™ network.
* Chassis: Steel
* Front Panel: Cast-aluminum
* Cooling: Proportional speed fan with front-to-rear airflow.
* Dimensions: 19" (W) x 3.5" (H) x 12.25" (D)
* Net Weight: 18.5 lbs (8.4kg)
* Shipping Weight: 21.5 lbs (9.8kg) |
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