B&H Photo Video Pro Audio The Professional's Source 800.606.6969 / 212.444.6615
0 $0.00
Your cart is currently empty

You have 0 items in your cart

View Cart & Begin Checkout
What item is right for you?
Ask our Experts! 800.606.6969 Live Chat

Nady SPA 850 Rackmount Stereo Power Amplifier (350W/Channel @ 4 Ohms)

B&H # NASPA850 Mfr # SPA 850
Usually ships in 7-14 business days

Availability Details

Close
This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment.
PayPal Orders
PayPal orders will be charged when the order is placed.
International Orders
International orders will be charged when the order is placed.

Free Standard Shipping
Not eligible for free Expedited Shipping
You Pay: $217.49
Product Highlights
  • Rackmount Chassis
  • Stereo, Parallel, and Bridged Mono Modes
  • XLR and 1/4" Inputs
  • Speakon and Binding Post Outputs
  • Daisy-Chain Capability
  • Ground-Lift Switch
  • Clip Limiter and Low-Cut Filter
  • Protection Circuitry
  • Variable-Speed Cooling Fan

The SPA 850 from Nady is a professional power amplifier that offers reliable performance and terrific versatility in a compact rackmount design. The amplifier can operate in stereo, parallel, or bridged mono modes to meet the demands of a variety of applications. It offers XLR and 1/4" TRS inputs along with Neutrik Speakon and binding post outputs, allowing you to connect to a wide variety of sound devices and systems. Parallel output connectors let you daisy-chain multiple amplifiers for additional power.

In order to deliver the best sound and reliability possible, the amplifier is equipped with a ground-lift switch and a 30Hz low-cut filter to eliminate low frequency hum. A defeatable clip limiter prevents audio from distorting. A complete array of protection circuitry includes a soft-start turn on, noise-free on/off, DC offset, DC and thermal overload protection, DC servo operation, short circuit and speaker protection, and a current limiter. All of these functions protect your amplifier and your speakers from damage and keep them operating smoothly. A variable-speed cooling fan with back-to-front airflow keeps internal components from overheating.

Durable steel chassis fits in a standard equipment rack
Switchable stereo, parallel, and bridged mono modes meet the demands of a variety of applications
XLR and 1/4" TRS inputs, along with Neutrik Speakon and binding post outputs allow you to connect to a wide variety of sound devices and systems
Parallel output connectors let you daisy-chain multiple amplifiers for additional power
Detented volume controls let you make precise adjustments
A ground-lift switch and a 30Hz low-cut filter eliminate low frequency hum
A defeatable clip limiter is provided to minimize distortion
Clip and signal LED indicators on each channel
Protection circuitry includes a soft-start turn on, noise-free on/off, DC offset, DC and thermal overload protection, DC servo operation, short circuit and speaker protection, and a current limiter. All of these functions protect your amplifier and your speakers from damage and keep them operating smoothly
A variable-speed cooling fan with back-to-front airflow keeps internal components from overheating
Switchable 115/230VAC power for international use
Power Rating 425W @ 2 Ohms
350W/Channel @ 4 Ohms Stereo
200W/Channel @ 8 Ohms Stereo
600W @ 8 Ohms Bridged
850W @ 4 Ohms Bridged
Input Sensitivity 1.15V (+3.4dBu)
Input Impedance 10 kOhms, Balanced and Unbalanced
Gain 30dB
Frequency Response 25Hz - 25kHz +0/-1dB
Signal-to-Noise Ratio 100dB
Total Harmonic Distortion (THD) < 0.03%
Input Connectors 2 x XLR Inputs
2 x 1/4" TRS Inputs
1 x AC Power Input
Output Connectors 2 x Neutrik Speakon Outputs
2 x Binding Post Outputs (2 Terminals Each)
Controls Front Panel 1 x Power Switch
2 x Detented Volume Control Knobs
Controls Rear Panel 1 x Mode Selector Switch
1 x Ground-Lift Switch
1 x Voltage Selector Switch
1 x Clip Limiter Switch
1 x LF Filter Switch
Indicators 1 x Green Power LED
2 x Green Signal LEDs
2 x Red Clip LEDs
Cooling Variable-Speed Fan, Back-to-Front Airflow
Protection Full Short Circuit, Open Circuit, Thermal, Ultrasonic, and RF Protection; Stable into Reactive or Mismatched Loads; On/Off Muting; Current Limiter (Crowbar)
Power Requirements 110-120VAC or 220-240VAC, 50/60Hz
11A Fuse
Dimensions (WxDxH) 19 x 15.7 x 3.5" (483 x 400 x 89mm)
Weight 29.9 lbs (13.6kg)
Nady SPA 850 Rackmount Stereo Power Amplifier (350W/Channel @ 4 Ohms)
  • Power Cord
  • 1-Year Limited Warranty
  • Kopul -  Studio Elite 4000 Series XLR M to XLR F Microphone Cable - 3' (0.91 m), Black
    • You Pay: $15.99
     

    Speaker Cables

    Show more >
    Whirlwind -  Speakon to Speakon Speaker Cable (12 Gauge) - 25'
    • You Pay: $53.00
     

    Cases & Protection

    Show more >
    Gator Cases -  GSR-2U Studio 2 Go Carrying Case
    • You Pay: $99.99
     
    Gator Cases -  GR-STUDIO4U 4U Studio Rack Cabinet
    • You Pay: $89.99
    Usually ships in 7-14 business days i This item is usually Drop Shipped from the MFR/Distributor within 7-14 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR.
     
    View all Accessories
    See any errors on this page? Let us know.

    Close

    Close

    Close