Lab Gruppen C68:4 Amplifier

£5,499.00 (including VAT @ 20%)

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This item is available to order, and we do not currently have the item in stock.

When you place your order, we will request the item from our supplier as soon as possible. We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery to you: 13th December 2016
FREE Delivery available.

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1 year warranty and 30 day money back guarantee included

1 year warranty and 30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

All Products are new unless stated, and include a minimum of one year warranty.

Some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging, and in the case of software, unregistered. These items include:

  • Software
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  • In-ear Monitors
  • Earplugs and Ear Protection
  • Mouthpieces, Reeds etc… for Woodwind and Brass instruments
  • Mouth / Lip Care Products

We are unable to accept returns of any custom made items designed to work together as a unique package, such as computer system built to a customer’s personal specifications. Exceptions may only be possible with prior agreement of the vendor, and may be subject to a cancellation fee.

Product Ref: 56812

  • Versatile Four-Channel Amplifier
  • Adaptable to a Variety of Loads
  • Each Channel has Configurable Voltage Peak Limiter
  • Phoenix-Type Input Connectors
  • Efficient Cooling System

Lab Gruppen C68:4 Amplifier

The Lab Gruppen C 68:4 is a 2u spaced, four channel amplifier in the C series ideal for a range of installation requirements. This amplifier is powerful enough to handle the vast majority of installation applications delivering 4 x 1700 W into 4 ohm.

Product Ref: 56812

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Buy on finance from £150.32 per month Finance from £150.32 per month  

  • 15.9%
  • £190.38
  • £6,853.68
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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Like all the models in the C series, the C68:4 is capable of adapting to a wide variety of load demands, as well as having individual configurable Voltage Peak Limiter (VPL). This enables the output to be optimised for any loudspeaker load as well as working with adjustable input gain to achieve maximum headroom.

Lab Gruppen C Series

The Lab Gruppen C series of 4 and 8 channel amplifiers provide the solid foundation of install-dedicated amplifiers, with innovative features perfect for the modern installation AV market. The C series is incredibly versatile, reliable and offer superb sound quality.



  • Number of Channels: 4
  • Peak Total Output all Channels Driven: 6800 W
  • Peak Output Voltage per Channel: 141V
  • Max Output Current per Channel: 24.5 Arms

Max Output Power All Channels Driven

  • 16 Ohms: 650 W
  • 8 Ohms: 1200 W
  • 4 Ohms: 1700 W
  • 2 Ohms: 1200 W
  • Hi-Z per ch. (all ch.'s driven): 70 Vrms/ 100 V Peak: 1600 W

Max Output Power Bridged

  • 16 Ohms: 2400 W
  • 8 Ohms: 3400 W
  • 4 Ohms: 2400 W
  • 2 Ohms: Not Recommended
  • Hi-Z Bridged per ch 140 Vrms / 200 V Peak: 3200 W


  • THD 20 Hz - 20 kHz at 1W: <0.1%
  • THD at 1 kHz and 1 dB Below Clipping: <0.05%
  • Signal to Noise Ratio: >112 dBA
  • Channel Separation (Crosstalk) at 1kHz: >70 dB
  • Frequency Response (1 W into 8 ohms) +0/-3 dB: 6.8 Hz - 34 kHz
  • Input Impedance: 20 kOhm
  • Common Mode Rejection (CMR): >50 dB, 20 Hz - 20 kHz
  • Output Impedance @ 100 Hz: 30 mOhm

Gain, Sensitivity and Limiters

  • VPL, Selectable per ch: 141, 118, 100, 85, 71, 59, 50, 42 V
  • VPL, When Bridged: 282, 236, 200, 170, 142, 118, 100, 84 V
  • Voltage Peak Limiter Mode (per ch.): Hard / Soft
  • Amplifier Gain Selectable (all channels) ? Rear-Panel Switches: 23, 26, 29, 32, 35, 38, 41, 44 dB
  • Default Gain: 35 dB
  • Level Adjustment (per channel): Front-Panel Potentiometer, 21 Position Detented from -inf to

Connectors and Buttons

  • Input Connectors (per ch.): 3-pin Phoenix, Electronically Balanced
  • Output connectors (per ch.): Barrier Strip 2-pole Screw Terminals
  • Output Bridge Mode: A+B and/or C+D, inputs A and C are signal source
  • NomadLink Network: On Board, 2 x RJ45 Connectors IN and OUT
  • Intelligent Fans (on/off): Yes, Depending on Presence of Output Signal
  • Power: Individual Switches on Front Panel
  • Cooling: Two Fans, Front-Rear Airflow, Temperature Controlled Speed

Front-Panel User Interface

  • Common: NomadLink Network; Power Average Limiter (PAL); Power on
  • Per Channel: Signal present / High-impedance; -10 dB and -4 dB output signal;Voltage Peak Limiter (VPL); Current Peak Limiter (CPL): Very High Frequency (VHF); High temperature; Fault; Mute


  • Operating voltage, 230 V / 115 V Nominal: 130-265 V / 65-135 V
  • Minimum Power-up Voltage, 230 V / 115 V: 171 V / 85 V
  • Power Average Limiter (PAL): Yes
  • Power Factor Correction (PFC): No
  • Soft-start / Inrush Current Draw: Yes / Max. 5 A
  • Mains Connector: 230 V CE: 16 A, CEE7; 115 V ETL: 20 A / NEMA 5-20P; C16:4: 15A/NEMA 5-15P


  • Dimensions: W: 483 mm (19?), H: 88 mm (2 U), D: 343 mm (13.5?)


  • Weight: 12 kg (26.4 lbs.)


  • Finish: Black Painted Steel Chassis with Gray Painted Steel Front


  • Approvals: CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC