29 s EUNA Elite UNity Amplifier Buffer Pedal Pedal EFFECTS NEW PERFECT CIRCUIT

EUNA is the Elite UNity Amplifier from 29 Pedals.

An input driver that replaces a conventional buffer, EUNA is built to protect and condition your instrument's signal to prepare it for whatever you want to do with it. Console grade build, three great sounding filters, and an alt-path insert loop for your classic fuzz and wah circuits that don't want to be buffered. Also features the 29 Pedals WHATEVER power supply, which accepts 7.5 to 35 volts of AC or DC in either polarity with no change in tone. EUNA is made by 29 Pedals in California.

Even a few true-bypass pedals and 20' of cable can hang out your guitar's output and make it feel mushy and dark. Buffers can help, but they are often very simple circuits that create sonic issues of their own.

EUNA is an Elite UNity Amplifier. It is designed to protect and condition your guitar’s signal. Use it in place of an input buffer. Plug directly in, first in the chain. You can safely remove all other buffers after it if you wish. We recommend an output driver at the end of your chain. You can use a conventional buffer, or try our output amplifier OAMP. Plug your guitar directly into EUNA with the shortest cable that is convenient.

EUNA features an effects loop that activates when EUNA is OFF. It was designed for use with vintage or vintage-style fuzz pedals. The interaction between your guitar and your fuzz is disturbed by any buffering, so EUNA’s effects loop allows you to switch between a buffered input and guitar-direct-to-fuzz. You can also use the loop to remove your tuner’s buffer from the signal chain. Let us know what other uses you find for the loop! If nothing is plugged in to the loop, the pedal is true-bypass when switched off.

EUNA features 29 Pedals’ WHATEVER power supply. The WHATEVER power supply accepts 7.5 to 35 volts of AC or DC (either polarity) with absolutely no change in tone. It’s true!!

EUNA has three sweetening circuits - Harmonics, Bright and Low. Low adds a little bit of low end. Not too much, just a little bit for some sweet oomf or to make up for low-end loss in your pedal chain. Bright adds some brightness, and Harmonics pushes the air band where guitar harmonics are. Harmonics adds sweet, tube-like chime to any rig.

EUNA preserves 'touchyness' and 'snap.' There is also an increase in effective dynamic range of your signal, and in some cases coil noise is reduced! The custom-tailored load kicks the resonant peak of your pickups out typically about 5 or 10k compared to a load of a few true-bypass switches and reasonable cabling. The pickup’s top-end rolloff is smoother too. You'll feel more chime and less pinchy top-end.

EUNA will take over +18dB input with extremely low THD* - many other pedals fold about +10dB or less! The extra headroom on the front end means that EUNA will pass through your entire signal. That extra headroom means that fast transients won't ever run out of room - no relatively normal electric guitar could clip this, even for an instant. It's absolutely flat from 10Hz to 50kHz, but all the above features create a perceived tone 'sweetness.' EUNA can be modified to accept up to +22dB!

Connect power to the WHATEVER power input with a standard DC plug. You can use AC or DC, either polarity, 7.5 to 35 volts. EUNA consumes about 120 mA.

Use the footswitch to engage or disengage EUNA. The light is brighter when EUNA is ON. When EUNA is OFF the insert loop is ACTIVE. If nothing is plugged into the insert loop, EUNA will be in True Bypass mode when switched off. You can connect a pedal to the Send/Return jacks. Connect SEND to the INPUT of the pedal you want to connect. Connect RETURN to that pedal’s OUTPUT.

EUNA is DIY friendly - the opamp is socketed so you can very easily audition chips. Notes on the PCB will help experienced DIYers tailor EUNA completely to their rig. EUNA will drive down to 600 ohms perfectly flat, but there are a few places to delight in hacking. Remove only 4 screws and you can service/mod the entire audio path without disturbing the power supply side or removing the board from the chassis.

The construction is a single 4 layer PCB with 2oz copper throughout. Huge traces and fully plated holes, like high-end recording equipment and hifi gear. This method provides superior fidelity and transmission. No jumper wires, fewer soldered connections, shorter paths, more copper. The power supply side is completely isolated from the audio side with a layer of shielding and separate ground planes connected at a single point in a proper star-ground configuration. No electrolytics in the signal path, only for PSU filtering. 1% thin-film resistors, WIMA film caps and other audiophile-grade components complete the short signal path.

New Gear

We are authorized dealers for a number of great companies that back their products with standard warranties.

We extend this warranty period for 1 year beyond the manufacturer's as a token of our gratitude for shopping with us  :)

We want to make sure that you don't get stuck with a lemon and will either replace or have the unit repaired by an authorized service center on our dime.

We offer a 30 day return policy 'no questions asked'.

Unless the item is defective, you will be subject to a 15% restocking fee. 

Used Gear

All gear is tested prior to listing for sale. Any known issues will be mentioned in the item description.

We work extremely hard to make sure that you have peace of mind when buying pre-owned gear. 

You will have 14 days from receipt of the item to test and make sure that everything meets your expectations. 

If the item is found to be defective, we will cover return shipping. You must contact us first to set up the RMA. 

Any used items returned for reasons other than functionality (within this 14 days) will be subject to a 20% restocking fee. 

We will bend over backwards to make sure that you are happy with your purchase.

If you have any issues or questions at all please email or call us.  We are happy to assist!

Orders will be processed and handled within 1 business day in most cases.

Orders placed before 1pm PST during our business hours generally are shipped the same day.

We also offer expedited shipping. If you have any special requests please contact us first, and we will do our best to accommodate you.

Domestic Buyers

• We offer Free shipping on every item big or small to the lower 48 US States
• Hawaii, Alaska & Puerto Rico residents are subject to a handling fee, so please contact for quotes.
• We ship to APO & FPO addresses, but please contact for a quote. 
• We insure every package for the full amount 
• Any purchase over $200 will require a signature. THERE ARE NO EXCEPTIONS! 

International Buyers

• We ship via FedEx or USPS to most countries around the world
• Buyer is 100% responsible for ALL Duties & Taxes (VAT,etc.) imposed by your local government/ customs officials. 
• These are not included in our Shipping & Handling fees so please be aware before purchasing.
• International orders are usually delivered in 3-5 business days if there are no delays caused by customs or weather conditions.

Return Policy

• You must contact us for a RMA (Return Merchandise Authorization) within 30 days for new gear and 14 days for used gear.
• Items are subject to either a 15% (new gear) or 20% (used gear) restocking fee, unless found to be defective. 
• Customer is required to cover shipping using a trackable service with signature confirmation.
• We will cover return shipping for defective items and submit a return label via email.
• All new items must return in 'new' condition with all original packaging, warranty cards, and cables. 
• All used items must be returned in the same condition as picture & represented online.
• If new items arrive damaged and/or without original materials the RMA may be revoked or you may be subject to a 25% restocking fee. 
• If used items arrive damaged the RMA may be revoked or you may be subject to a 30% restocking fee. 
• Please allow up to 5 business days for us to process returns. Refunds, store credit or replacements will be handled within that time frame

If you experience a problem with a unit: do not attempt to open or repair the unit yourself. 

Any attempt to do so will void any warranty or guarantee. 

Please send us a detailed description of the problem you are experiencing and we will have a team member contact you as soon as possible.

International Buyers

We are not responsible for unit damaged due to use of improper voltage. 

Please make sure to double check voltage compatibility and use a proper voltage converter when necessary.

Our customer service hours are Monday through Friday, 10AM to 7PM Pacific Time.

Feel free to contact us

We are here to help, so if you don't get ahold of us leave a message and we'll be back with you as soon as possible.

Thanks!