Rivera Sedona 55 Doyle Dykes Signature Combo with ES Option
Designed with Nashville fingerpicking legend Doyle Dykes to handle the nuances of acoustic guitar. 5 - 12AX7 preamp tubes shape 2 full discrete channels of warm tone, while 2 EL-34 power tubes push out 55W to the 12" JBL woofer and single high-power dome tweeter. Channel 1 is designed to produce optimum electric tones, clean or distorted. Channel 2 is tailored for electric or acoustic instruments. Each channel has its own independent 3-band EQ, and the tweeter can be switched on or off to reproduce an acoustic instrument's sparkling harmonics on demand. The anti-feedback equalizer tunes out unwanted noise. Reverb has never sounded sweeter, thanks to the long-pan, 6-spring Accutronics reverb.
The rear-panel tube direct box output includes a level control and pull switch for ground lift. It sends only the instrument's signal through an all-tube, low-impedance, balanced XLR output. The active effects loop has level controls for matching any outboard signal processor to optimize tone and minimize noise. Cabinet is built of hardwood plywood and finished in a buckskin brown Tolex, with 3-tone brown grille cloth, nickel corners, and leatheret te handle on top. The ES-balanced XLR input option is for use with the Taylor ES system. FS-7 footswitch included.
link-http://www.rivera.com/
price- about SGD 4800 (musicianfriend)
expensive acoustic ampFishman SoloAmp PRO-AMP-SL1 Acoustic Guitar/PA Amplification System

Professional quality sound in a lightweight, portable package.
Portable and Powerful
Designed for the singer/songwriter, SoloAmp combines a PA and acoustic guitar amp in one powerful yet lightweight system providing exceptional sound quality and cove rage in a wide variety of venues. 220W of clean, lightweight power drives a line array of six custom high-excursion speakers and a soft dome tweeter. This unique combination delivers incredibly full sound, ultra-wide dispersion, and deeper sonic penetration than the common speaker cabinet. Better yet, the enhanced bass response of the custom designed speakers means there's no need for a subwoofer!
It's a PA and an Amp.
With SoloAmp acoustic amp, the performer and audience hear exactly the same sound, meaning there's no need for separate wedge monitors or a combo amp backli ne. And because SoloAmp is voiced for the singer/songwriter, acoustic instruments and vocals are projected with superb depth and clarity.
The Ultimate in Portability
SoloAmp weighs only 25 lbs, ships complete with a padded bag equip ped with wheels, and includes a rugged speaker stand. Set up takes less than a minute, with only one trip to the car! And full-digital universal power means SoloAmp amplification system is ready to travel anywhere in the world.
Features Performing Musicians Demand
Fishman didn't make SoloAmp this portable by scaling back on features or tone. In fact, they've included all of the award-winning elements of the Loudbox family, and added a unique Monitor feature designed to revolutionize an acoustic duo's ability to hear each other on stage. SoloAmp is also equipped with two mic/instrument channels featuring high-quality preamps, each with 3-band EQ, phantom power, built-in reverb, effects loop, and feed back-fighting notch filter and phase controls
Marshall's AS50D is a 50-watt, 2 x 8" acoustic guitar combo amp with 2 channels, including a phantom-powered microphone channel. It features a redesigned tweeter, digital chorus and reverb, and an anti-feedback notch filter. Each channel sports its own volume, EQ, FX loop, and D.I. output. Master volume, line out and RCA inputs round things out nicely.
Believe it or not, the Marshall design team does not consist solely of metal heads, rockers and blues lovers. The award winning, critically acclaimed AS50D is proof of their diversity and expertise.