Kalmus LA500H
Kalmus RF Amplifiers. Bandwidth: ** 10 Hz – 100 kHz (at 0.1% THD, Sensitivity: ** 1.4 V RMS for full output (into 8 ohms).
- Model
- Kalmus LA500H
- Calibration
- Available on request
- Price
- $4,800
- Status
- In stock
- RFQ ref
- LA500H
This unit
The Kalmus LA500H is a stereo power amplifier designed for professional audio environments and sophisticated home audio systems. It delivers 300 W RMS per channel into 8 ohms, scaling to 500 W RMS into 4 ohms, with mono bridged capability reaching 750 W RMS into 8 ohms. The amplifier combines low distortion performance
THD below 0.01% and IMD below 0.005% - with a signal-to-noise ratio exceeding 115 dB (A-weighted) and damping factor greater than 200 at 50 Hz. All-metal chassis construction with variable-speed cooling and comprehensive protection circuitry ensures reliable operation across demanding audio applications.
Technical Specifications
Model: Kalmus LA500H
Amplifier Type: Stereo Power Amplifier
Frequency Response: 20 Hz – 20 kHz ± 0.2 dB (at rated output into 8 ohms)
Power Bandwidth: 10 Hz – 100 kHz (at 0.1% THD, into 8 ohms)
Total Harmonic Distortion (THD): Less than 0.01% (20 Hz – 20 kHz, at 1 W into 8 ohms)
Intermodulation Distortion (IMD): Less than 0.005% (SMPTE, at 1 W into 8 ohms)
Signal-to-Noise Ratio: Greater than 115 dB (A-weighted, at 1 W into 8 ohms)
Damping Factor: Greater than 200 (at 50 Hz, 8 ohm load)
Slew Rate: 30 V/µs
Rise Time: 1.5 µs
Key Features
Output Power: 300 W RMS per channel (8 ohms, stereo); 500 W RMS per channel (4 ohms, stereo); 750 W RMS mono (bridged, 8 ohms)
Input Options: XLR (balanced, 100 kOhms) and RCA (unbalanced, 50 kOhms)
Input Sensitivity: 1.4 V RMS for full output (into 8 ohms)
Protection: Thermal monitoring, short-circuit protection, DC offset protection
Cooling: Variable-speed fan with front-to-back airflow
Remote Control: 12V trigger input (3.5 mm mini-jack)
Power Consumption: Idle ≈50 W; full power ≈500 W per channel; standby <5 W
Indicators: Power, signal, clip, and protection LEDs (per channel)
Typical Applications Professional audio installations, venue sound reinforcement, high-fidelity home theater, and studio monitoring systems requiring sustained high-output capability with minimal distortion.
Compatibility & Integration Standard 19-inch rack-mount width (483 mm) with binding post outputs accepting banana plugs, spade connectors, and bare wire. AC power options: 100–120 VAC or 220–240 VAC, 50/60 Hz. Weight: 20.4 kg.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 20 Hz – 20 kHz | Voltage / Current Range: 100-120 VAC or 220-240 VAC, 50/60 Hz |
Kalmus LA500H — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Kalmus LA500H. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Kalmus LA500H price
This Kalmus LA500H is listed at $4,800. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Kalmus LA500H calibration cost
NIST-traceable calibration for the Kalmus LA500H is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
