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Suhr ISO Line Out Box , $180.00 - Add to Cart Skip to Product Information

Suhr ISO Line Out Box

Isolated Line Out Box with Phase Switch and Ground Reference Switch
Item ID: ILOBox
Suhr ISO Line Out Box
Special Order

Special-ordered from Suhr and usually ships to you within a few weeks. Please note: special orders cannot be canceled or returned.

Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.
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Suhr ISO Line Out Box
Special Order

Special-ordered from Suhr and usually ships to you within a few weeks. Please note: special orders cannot be canceled or returned.

Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

Transform Your Amp’s Output Jack into a Transformer Isolated Signal

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The Suhr ISO Line Out box represents a simple, straightforward, and versatile way to experiment with expansive wet/dry rigs or feed your effects processor with a separate line-level signal. Plug your amplifier’s output jack into the Suhr ISO Line Out box to convert its signal into a transformer-isolated signal. It can then be sent to another amplifier’s effects loop return or even a separate power amplifier with speakers. This box’s line-out jack comes wired for both balanced and unbalanced connections, with a built-in phase switch and a ground reference switch (strictly applicable to balanced cables) to reference the device’s ground to the line-out cable ground. From masterfully crafted instruments to amplifiers, utility devices, and beyond, Suhr’s products never fail to impress when they come through Sweetwater’s doors.

Note: The Suhr ISO Line Out Box is not a load box; your amplifier will still need to be connected to a speaker load when the device is plugged in. For advice on picking out a load box, make sure to reach out to your Sweetwater Sales Engineer at (800) 222-4700.

Suhr: the pinnacle of craftsmanship, playability, and tone

Suhr doesn’t just build handcrafted, boutique-quality instruments and amplifiers — the company creates exceptional tools that fuel musical dreams and artistic passions. John Suhr began crafting custom guitars in the mid-1970s, and by the dawn of the 1980s, he was building made-to-order Pensa-Suhr instruments for a who’s who of top musicians. In the 1990s, John collaborated with celebrated rig builder Bob Bradshaw to design the now-legendary CAA 3+ and 3+SE preamps and the CAA OD-100 amplifier. In 1997, after a stint as senior master builder for Fender’s Custom Shop, John founded his own company, a decision that enabled him to bring to fruition products of unrivaled quality, detail, and craftsmanship. Today, the Suhr name is synonymous with prestige; a guitar, bass, or amplifier with the Suhr marque garners instant respect. With elite players such as Mateus Asato, Reb Beach, Scott Henderson, James Norbert Ivanyi, Andre Nieri, Pete Thorn, Ian Thornley, Doug Aldrich, and Andy Wood on the company’s roster, you can be certain that your Suhr places you in esteemed company.

Suhr ISO Line Out Box Features:

  • Provides a transformer-isolated signal from your amplifier’s speaker output
  • Perfect for sending a line-level signal to your effects processor or experimenting with wet/dry rigs
  • Phase switch to flip your phase, in addition to a handy ground reference switch to reference the unit's ground to the line-out ground (only applicable with balanced cables)
What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.