Tapco J1400 Juice Power Amp

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

XR Series - Intelligent Power
New Horizons.

A lightweight with enormous power output. Combined with digital signal processing.
That's what we call flexibility! Locally controlled or completely networked.
No matter what the requirements are.
The integrated powerful digital signal processor (DSP) and controller allows
for a troublefree and easy adjustment to any acoustical environment.
Wear-free digital potentiometers, sequential remote power on,
alive contacts for easy supervision, computer controlled monitoring -
 its enless list of useful feature make it the right choice for any installation.
XR - the new definition of Intelligent Power

High Tech SMT Design
Digital Signal Processor
Excellent sound and superior impulse response
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay
PHOENIX / Speakon
High-End Switched Power Supply with Power Factor Correction (not XR4000)
LED Indicators for SIGNAL, CLIP, PROTECT, POWER
Temperature controlled, variable speed low noise fans
Digital wear-free Volume Controls (can be operated manually)
Stereo / Bridged / Parallel Mode
Softstart
Sequential Remote Power On
Alive Contact
Paging Input
Monitor Output
SXL Dataport
Perfect Weight-to-Power ratio
3 Years Warranty

Technical Data:
XR 2000:  2x 1400 W @ 2 Ohm
              2x 1000 W @ 4 Ohm
Class:  H
Frequency Response:20 Hz - 20 kHz (0 / -0.3 dB)
THD:  < 0.02%
Signal-to-Noise Ratio:  < -106 dB
Channel Seperation:  > 85 dB
Input Sensitivity:  +6 dBu
Input Clipping:  22 dBu
Input Impedance:  20 kOhm
Damping Factor:  750 to 1200 @ 4 Ohm
Cooling:  4 Fans (temp. reg. variable speed)
Weight:  8 kg
Dimensions:  2 RU / 483 x 88 x 454 mm(19" x 3.5" x 17.9“)

Crown DSi 2000 2x800W-4Ω Power Amplifier

The Crown? DSi 2000 power amplifier shall be a solid-state two-channel model with a switch-mode universal power supply. A rear-panel HD-15 connector shall provide input/output connectivity between the DSi amplifier and the DSi-8M System Monitor.

The outputs shall be usable as stereo or bridged-mono modes of operation.

The bridged-mono mode shall bridge the outputs to provide increased output voltage.

Front panel controls and indicators shall include the following:

Level: Detented rotary level control, one per channel.

Power Switch: On/off switch applies AC power to the amplifi er.

Sel/Prev/Next Buttons: Three buttons near the LCD screen shall be used to access menu items and front panel lockout.

LCD Screen: Backlit liquid crystal display shows speaker presets and signal processing.

Signal Indicator: Green LED, one per channel, illuminates when a very low-level signal is present at input.

?10 Indicator: Green LED fl ashes when output signal exceeds ?10 dB below clip.

?20 Indicator: Green LED fl ashes 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 amplifi er has been turned on and has power.

Rear panel controls and connectors shall include the following:

AC Line Connector: NEMA 5-15P (15A).

Input Connector: Two 3-pin removable Phoenix-type connectors each accept a balanced line-level input signal.

Output Connectors: 4-position barrier strip with connectors for dual louspeakers or bridge-mono loudspeaker.

HiQnet USB Connector: Type B, connects to a HiQnet network.

HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor.

The amplifier shall have the following specifications:

Output Power: 2 ohm Stereo (per channel): 1,000W with 1% THD, 4 ohm

Stereo (per channel): 800W with 0.5% THD, 8 ohm Stereo (per channel) 475W

with 0.5% THD, 4 ohm Bridge-Mono: 2,000W with 1% THD, 8 ohm Bridge-

Mono: 1,600W with 0.5% THD.

Voltage Gain at 1kHz, 8 ohm rated output: 26 dB.

Frequency Response: +0/?1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo

mode, 4 to 16 ohms in Bridge-Mono mode.

Sensitivity at 8 ohm rated output: 3.09V.

Sensitivity at 4 ohm rated output: 2.84V.

Sensitivity at 2 ohm rated output: 2.24V.

Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 105 dB

(A weighted).

Damping Factor: Better than 500 from 20 Hz to 500 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.

Input Stage: Input is electronically balanced and employs precision 1% resistors.

Input Impedance (nominal): 20 k ohms, balanced;10 k ohms,unbalanced.

Maximum Input Signal: +22 dBu typical.

This professional stereo power amplifier, working in class-H mode, provides 2x800W, at an efficiency of around 85%.

A passive transformer based power supply and hand selected components makes this power rating possible with exceptional audio quality and absolute reliability, even in the 2 Ohm mode. The output stage is fully protected against over-temperature, short circuit, RFI and equipped with soft start circuit and temperature-controlled fan cooling.  The integral soft clip limiter protects against damage to the connected loudspeakers.  The activity of a protective circuit, signal and limiter is shown for each channel by LEDʼs.