LH Labs Analog Components


Digital audio, with all of it’s endless possibilities and advancements, falls short in a few key areas. First off, no matter how high your DAC’s sampling rate is, you’ll never be able to hear it ALL, as there’s simply not enough bandwidth or a high enough slew rate for high resolution audio playback.

Secondly, the grounding of a digital audio system is generally not centralized and/or well managed which contributes to the ever present issue of grounding loop noise. Thirdly, the impedance matching of the audio source and next stage doesn’t match well, resulting in the need to keep swapping out audiophile cables to compensate for the mismatch.

Our solutions for these complex problems are actually relatively simple. With the release of the following Pulse Analog components, we’re able to accomplish the following.






design subject to change.

Every Pulse Analog components featured here provides an ultra-high bandwidth with super fast slew rate resulting in your music being true to itself. Highs will be smooth, yet defined and not overbearing, while still allowing you to hear the difference between your high resolution music files in comparison to normal CD quality files.

With our currently available LPS4 super regulator controlled power supply, you’ll have a single device to supply power to your entire audio source system without the ground loop or reintroduced ground noise. Pulse LPS4 has been proven work so well that it received the “Greatest Bits Award” from AudioStream.

From DAC (analog output) to Pulse Preamp, from Pulse Preamp to Pulse Power Amp. The output impedance and input impedance of next device is always incredibly well designed and perfectly matched by the LH Labs engineering team, making the whole system work in unison with sound perfection as the ultimate end-result.






Premium  Stereo and Mono Power Amplifiers.

Amplifiers have a very simple, but very important task. They take the audio signal from their input, amplify the signal by adding more “juice,” then pass it along to your loudspeakers. It sounds easy, but it’s actually quite difficult to make amplified audio sound “unamplified.” With this in mind, we decided to attend to the amplification process, with a focus on a more efficient use of power. Ultimately, we developed three solutions that improve the sound quality, and ensure that everything can fit inside a very small footprint.

What makes our premium amplifiers special.

Multi-Zone Class A



Multi-Zone Class A (MCA): With our innovative MCA Amplification, Pulse Power Amplifier automatically adjusts to the most efficient amplification level to fit your listening volume.

Bipolar Instant Power


Bipolar Instant Power (BIP): With BIP Boost technology, Pulse Power Amplifier holds power in reserve for sonic events that have more “boom.” Pulse Power Amplifier’s bipolar power design will make the power output slew rate faster than ever. You need more bass power, you’ve got it, instantly.

Ultra-Wide Bandwidth


Ultra-Wide Bandwidth: True to LH Labs’ design philosophy, Pulse Power Amplifier has an extremely wide effective bandwidth. Smart power management: With an automatic shut-off mode, Pulse Power Amplifier provides power when you need it and smart energy management when you don’t.

Two Configurations

design subject to change.

S100 Premium Stereo Amplifier.

Geek Power Amp S100 is capable of delivering 50W per channel, totaling 100W, and our BIP technology boosts it to 200W when the extra power is needed.RCA & XLR Inputs for flexibility and Speaker Outputs. If you are looking to build a wicked but easy Stereo system, the S100 if your amp.

Reserve your spot for $500. An additional $499 + shipping due before delivery.

S100 Product Diagram

With the S100 Power Amplifier, you will receive a pair of single-ended RCA inputs that can work seamlessly with our Pulse DAC family. Along with speaker outputs to feed those passive speakers the juice needed without sounding “Amplified”.

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design subject to change

M200 Premium Mono-block Amplifier.

With our  M200  Mono Block Amplifier you will receive 200W balanced at 4Ohm on both channels of continuous power. When you need that instant push of power, you will get up to 400W using our BIP (Bipolar Instant Power) technology. M200 will include 3 level MCA (Multi-Zone Class A) amplification to efficiently amplify to your listening level.

Reserve your spot for $800 an additional $599 + Shipping due before delivery.

M200 Product Diagram

With the M200 Mono Block Power Amplifier, you will receive a pair of single-ended RCA inputs and one balanced XLR that can work seamlessly with our Pulse X DAC family. Along with speaker outputs to feed those passive speakers the juice needed without sounding “Amplified”.

Click image to enlarge

Improvements for your amplifiers

We collected feedback from our original pre-order backers throughout the development process of our Premium Power Amplifiers. We went above and beyond to offer some of the most sought after upgrades to your amps and proud to announce that all of these upgrades are included in this new pre-order page if you order now. Check out what we have in store for your brand new Premium Power Amplifier.

THD Performance Upgrade.

THD_circleWith this upgrade, we’ll fine-tune your Geek M200 & S100 Power Amplifier with hand-matched active and passive components to match your amplifier which will give your amp less than half the THD (distortion).  It’s labor-intensive work, but it’s very much worth it.

Power Capacitor Upgrade.

Mundolf_cap_circleWe’ll replace all eight of the power capacitors in your Geek M200 &S100 Power Amp to Mundorf or better. This is an audiophile metallized polypropylene capacitor. In selection of the materials used,special attention was given to the sound properties.

Subwoofer Line out Package.

Sub_line_circleOne way Geek Power Amp is going to be used is in a desktop system with bookshelf speakers.  To get that last octave of music, the foundation of everything else, you’re going to want some subwoofers. With this perk, Your Amps will have single-ended line-outs added to it to hook up your subs.  It’ll include an adjustable low pass filter and a good long-range signal driver. GPA S100 will have 2 line-outs. M200 will have one line out per channel.

Power Amp Specifications.

S100 Premium Power Amplifier

Our s100 Stereo Premium Amplifier includes a Dual MCA level. With a continuous power of 50W to both channels and BiP (Bipolar Instant Power) of up to 200W when you need that extra kick. S100 input connections include a pair or RCA single-ended connections for easy setup.

M200 Mono-Block Premium Power Amplifier

The M200 Mono-Block Premium Amplifier includes a Three MCA level. With a continuous power of 200W to both channels and BiP (Bipolar Instant Power) of up to 400W balanced when you need that extra kick. M200 input connections include a pair or RCA single-ended connections and a XLR input for easy setup.

Join the discussion.

Join our community and give us your feedback and help us make the best audio system possible.

There’s an old saying, “It takes a community to raise a child.” We totally take this to heart. In fact, we’ve built our entire business model on its premise. By incorporating community involvement into our product design and development, we’re able to meet the needs of our customers in ways other companies envy.

To read what everyone is talking about please visit our forum here

To receive the latest updates on our Premium Power Amplifier subscribe to our list below.


When purchased from Light Harmonic or an Authorized Reseller, Light Harmonic (“Company”) warrants this product to be free from defects in material and workmanship under normal use for a period of ONE (1) YEAR from date of original delivery. In all cases you must have the original packing slip or receipt. Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction during the warranty period, Company will repair or replace (at its discretion) the defective merchandise with an equivalent merchandise. Warranty replacement may have cosmetic scratches and blemishes. Discontinued products may be replaced with more current equivalent products. This warranty is valid only for the original purchaser and is not extended to owners for the product subsequent to the original purchaser. Any applicable implied warranties are limited in duration to a period of the express warranty as provided herein beginning with the date of the original purchase, and no warranties, whether express or implied, shall apply to this product thereafter. Some states do not allow limitations on implied warranties; therefore, these exclusions may not apply to you. This warranty gives you specific legal rights, however you may have other rights that vary from state to state.

Defective merchandise should be returned by obtaining a Return Merchandise Authorization (RMA) number through our online ticketing support portal found at http://support.lhlabs.com. Be sure to package all defective items in the original container or in a package that will prevent shipping damage and follow the return instructions obtained from our support portal. The RMA number must be clearly marked on the outside of the package. Please return only defective components. Non-defective items received will be returned freight collect. Warranty expiration on items without proof-of-purchase will be determined from type of sales and the manufacturing date code. Freight must be prepaid; items sent freight collect, or COD, will be refused. Failure to follow these steps may void warranty. Questions may be directed to us directly at http://support.lhlabs.com.

This warranty is valid only if the product is purchased from Light Harmonic or an Authorized Reseller and used for the purpose for which it was designed. It does not cover:

  • Damage due to improper installation and/or subsequent damage to other components
  • Damage caused by exposure to moisture, excessive heat, chemical cleaners, and/or UV radiation
  • Damage through negligence, misuse, accident or abuse
  • Repeated returns for the same damage may be considered abuse
  • Any cost or expense related to the removal or reinstallation of product
  • Speakers damaged due to amplifier clipping or distortion
  • Items previously repaired or modified by an unauthorized repair facility
  • Return shipping on non-defective items
  • Products with tampered or missing barcode labels
  • Products returned without a Return Merchandise Authorization (RMA) number
  • Freight damage
  • The cost of shipping products to Company
  • Service or installation performed by anyone other than Company

We strive to service all devices within 14 business days. However, delays may occur if lack of replacement inventory is experienced.

Pre-order Refund Policy

Both the Pre-order Deposit and the pre-paid shipping deposit are fully refundable by us to you at any time (for example, if you choose to cancel or abandon your reservation, or if we decline to maintain you as a reservation holder). This Agreement does not constitute an agreement for the sale of a Premium Power Amplifier System and does not lock in pricing, a production slot, or an estimated delivery date. You are under no obligation to purchase a Premium Power Amplifier System from us, and we are under no obligation to supply you with a Premium Power Amplifier System. If and when we notify you of the availability of a Premium Power Amplifier System and you wish to proceed with the purchase of a Premium Power Amplifier System, such sale and purchase will be governed by a separate and legally binding Purchase Agreement between you and us or between you and an Authorized Reseller.

To contact us in regards to your reservation, please visit http://support.lhlabs.com and open a ticket.