Crown XFMR4 Four-Channel Impedance Matching Transformer
The Crown XFMR-4 is a rack-mountable four-channel impedance matching transformer that allows amplifiers without native 70Vrms or 100Vrms output to drive distributed constant-voltage speaker systems. It is essential for integrating standard amplifiers into 70V/100V installations.Overview
The Crown XFMR-4 is a professional impedance matching transformer designed to bridge the gap between amplifiers with standard audio outputs and constant-voltage (70V/100V) distributed speaker systems. This rack-mountable device enables seamless integration of amplifiers into professional audio installations without requiring specialty constant-voltage output amplifiers.
Key Features
- Four-channel impedance matching transformation
- Converts standard amplifier outputs to 70Vrms or 100Vrms
- Allows use of standard amplifiers with constant-voltage speaker systems
- Rack-mountable 1U form factor
- Comprehensive input protection and fault signaling
- Suitable for cinemas, theaters, and large installations
Specifications
- Channels: 4
- Input: 32Vrms nominal
- Output Capability: 70Vrms and 100Vrms
- Power Rating: 125W per channel
- Frequency Response: ±1.0 dB (70 Hz to 15 kHz)
- Weight: 10.7 kg
- Dimensions: 483 × 44 × 397 mm
- Color: Black
Why buy from Procure.ae
Procure.ae supplies professional audio infrastructure components including impedance matching transformers to installers and institutional buyers across the UAE and GCC. Request a quote for competitive pricing and system integration support.
FAQ
When do I need an impedance transformer?
You need a transformer if your amplifier has standard line-level outputs but your speaker system is rated for 70V or 100V constant-voltage operation.
Can this transformer be used with any amplifier?
Yes, it is compatible with any amplifier capable of driving approximately 32Vrms into the transformer input.
Description
Overview
The Crown XFMR-4 is a professional impedance matching transformer designed to bridge the gap between amplifiers with standard audio outputs and constant-voltage (70V/100V) distributed speaker systems. This rack-mountable device enables seamless integration of amplifiers into professional audio installations without requiring specialty constant-voltage output amplifiers.
Key Features
- Four-channel impedance matching transformation
- Converts standard amplifier outputs to 70Vrms or 100Vrms
- Allows use of standard amplifiers with constant-voltage speaker systems
- Rack-mountable 1U form factor
- Comprehensive input protection and fault signaling
- Suitable for cinemas, theaters, and large installations
Specifications
- Channels: 4
- Input: 32Vrms nominal
- Output Capability: 70Vrms and 100Vrms
- Power Rating: 125W per channel
- Frequency Response: ±1.0 dB (70 Hz to 15 kHz)
- Weight: 10.7 kg
- Dimensions: 483 × 44 × 397 mm
- Color: Black
Why buy from Procure.ae
Procure.ae supplies professional audio infrastructure components including impedance matching transformers to installers and institutional buyers across the UAE and GCC. Request a quote for competitive pricing and system integration support.
FAQ
When do I need an impedance transformer?
You need a transformer if your amplifier has standard line-level outputs but your speaker system is rated for 70V or 100V constant-voltage operation.
Can this transformer be used with any amplifier?
Yes, it is compatible with any amplifier capable of driving approximately 32Vrms into the transformer input.
Specifications
Brand
Crown
Product Type
Impedance Matching Transformer
Storefront L1
Audio Video
Storefront L2
amplifiers
Storefront L3
Power Amps
Weight (Spec)
10.7
Color (Spec)
Black
Country of Origin
United Arab Emirates
Dimensions
483 x 44 x 397
Frequency Response
+/-1.0dB (at 70Hz to 15 kHz)
Frequently Asked Questions
When do I need an impedance matching transformer like the XFMR-4?
Use it when driving 70V or 100V constant-voltage distributed speaker systems with amplifiers that lack native 70V/100V output capability.
What is the advantage of a 70V/100V distributed speaker system?
Distributed systems allow long cable runs to multiple speakers with minimal volume loss and reduced wiring gauge requirements, ideal for large commercial spaces, offices, and retail installations.
Can the XFMR-4 reduce audio quality when converting standard amplifier output?
Modern impedance transformers like Crown's XFMR-4 maintain high audio fidelity during conversion. Quality loss is minimal if the transformer is properly matched to your amplifier power rating.
How many speakers can I connect to each channel of the XFMR-4?
Speaker capacity depends on individual speaker wattage ratings and total load per channel. Contact Procure.ae to confirm the specific wattage rating and load calculations for your speakers.
What happens if I don't use a transformer for a 70V installation?
Without a proper transformer, standard amplifiers cannot safely drive 70V distributed systems, risking equipment damage or unsafe voltage exposure. Always use a matching transformer.
Is the four-channel XFMR-4 adequate for my multi-room office system?
The four-channel design suits small-to-medium distributed systems. If you need more channels, consider Crown's eight-channel XFMR-8 transformer.
How long does delivery typically take for the XFMR-4 in the UAE and GCC?
Lead times depend on stock availability. Contact Procure.ae to request a quote and confirm delivery schedules for this transformer.
Can Procure.ae provide guidance on installing and configuring the XFMR-4?
Procure.ae offers technical support and installation guidance on a case-by-case basis. Reach out to discuss your specific 70V system configuration.
What specifications should I verify for the XFMR-4 before purchase?
Confirm power handling (wattage), impedance conversion ratios, and channel count match your amplifier and speaker system requirements. Contact Procure.ae to verify these details.
What warranty covers the Crown XFMR-4 transformer?
Crown provides manufacturer warranty coverage. Contact Procure.ae for specific warranty terms and duration applicable to this model.
Does the XFMR-4 require any external power or electronics?
The XFMR-4 is a passive transformer that requires no external power source. It simply interfaces between your amplifier output and 70V speaker system.
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