Is it possible to use two sets of outputs - as in run the XLR outputs to the house PA and run the line outs to a keyboard amp so band can monitor?

Yes, the input signal, regardless of connector used, is present on all outputs. http://artproaudio.com/downloads/specsheets/ss_dti.pdf

does it have a ground "lift" option, switchable?

No "BUT" all outputs are ground isolated from the chassis so a "lift" switch is not necessary when using this.

I want to use my studio monitors with my Macbook Pro. What cable do I need to use to plug this into my laptop?

Hi Jason,I would use an 1/8" to XLR Male Y cable like this:http://www.amazon.com/Hosa-CYX-403M-Stereo-Breakout-Cable/dp/B000068OEP/ref=sr_1_9?m=A3QYKZ7LXW9O3&s=merchant-items&ie=UTF8&qid=1448889739&sr=1-9&keywords=hosa+1%2F8+to+xlrIf this was helpful, please consider purchasing from us. We have them both in stock and ready to ship. - Pixel Pro Audio

My single coil pups are picking up interference (nearby laptop, etc) and causing my amp to hum and click; higher gain makes it worse. will this work?

You need a ground loop isolator. Some are as cheap as $20

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ART DTI Dual Transformer Isolator Hum Eliminator

ART DTI Dual Transformer Isolator Hum Eliminator

Product ID: 3498040

Details

Brand
ART
Item Weight
0.34 kg
Mounting Type
Chassis Mount
Power Source
Corded
Specification Met
UL

🔇Passive isolation eliminates hum & ground loops

🔌Versatile XLR, TRS & RCA I/O connections

🎚️10Hz-50kHz ultra-wide frequency response

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Description

🎧 Elevate your sound—ditch the hum, keep the vibe!

ROBUST PASSIVE DESIGN - No power needed—rely on a fully passive interface that maintains signal integrity without introducing distortion or coloration.
UNIVERSAL CONNECTIVITY - Seamlessly integrate with any setup using balanced XLR, unbalanced 1/4” TRS, and RCA phono jacks on both input and output.
HUM FREE SIGNAL ISOLATION - Dual transformers provide total ground separation, eradicating hum and ground-loop noise for professional-grade audio purity.
CRYSTAL CLEAR AUDIO FIDELITY - Experience ultra-flat frequency response from 10Hz to 50kHz with less than ±0.5dB variance, ensuring pristine sound clarity.
INDUSTRY LEADING RELIABILITY - Trusted by pros worldwide, backed by a 1-year warranty and top ranking in audio transformers for consistent performance.

The ART DTI Dual Transformer Isolator Hum Eliminator is a premium passive audio interface designed to eliminate hum and ground-loop noise through dual transformer isolation. It offers an ultra-wide frequency response of 10Hz to 50kHz with minimal distortion, supports multiple professional audio connections (XLR, TRS, RCA), and delivers clean, neutral sound with unity gain. Ideal for audio professionals seeking flawless signal integrity without power requirements.

Specifications

ASIN	B0009GUOQA
Best Sellers Rank	#33,993 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Audio Transformers
Brand Name	ART
Customer Reviews	3.8 3.8 out of 5 stars (303)
Global Trade Identification Number	00840402016380
Item Type Name	ART DTI Dual Transformer Isolator Hum Eliminator
Item Weight	0.34 kg
Manufacturer	ART
Maximum Frequency	50 KHz
Minimum Frequency	10 hertz
Model	DTI
Mounting Type	Chassis Mount
Number of Items	1
Part Number	DTI
Power Source	Corded Electric
Specification Met	UL
UPC	840402016380
Unit Count	1 Count
Warranty Description	1 year.

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€ 149.14

Duties & taxes included

In stock

Sold byAmazon GERMANYDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to GERMANY.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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